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CHAETOGAMMARUS TRICHIATUS MARTYNOV, 1932 (FIGS 8–11) Brief redescription: Based on specimen ZMMU Mb-1227, ♂, Russia, Krasnodar Krai, Sochi Urban Okrug, Lazarevsky District, mouth of the Ashe River, in the stream under stones (43°57.376ʹN, 39°15.954ʹE), 13 May 2019, coll. D. Palatov & I. Marin. Relatively large species (≤ 15 mm); females smaller than males. Head with oblique anteroventral lobe with distally produced anterior margin (Fig. 6B), eyes large, reniform, well pigmented. Body unpigmented, moderately elongated, generally smooth, non-carinate. Urosomites 1–3 smooth, without elevations; urosomites 1 and 2 with solitary strong median and submedian spines; urosomite 3 with two submedian spines and a pair of median simple setae (Fig. 6A). Antenna 1 feebly setose, with small aesthetascs; accessory flagellum eight-segmented (Figs 7A, 8A). Antenna 2 is about one-third shorter than antenna 1, massive and deeply setose in males and less setose in females, without calceoli and aesthetascs (Figs 7B, 8C, D). Upper lip (labrum) with convex distal part (Fig. 9A). Lower lip (labium) usually with mostly reduced inner lobes (Fig. 9B). Mandible with well-developed palp and setose basal segment (Fig. 9C–F). Maxilla 1 with outer lobe bearing hairbrush-like distal setae, subequal to inner lobe; inner lobe distally expanding with a row of marginal setae (Fig. 9G). Maxilla 2 with outer lobe wider than inner lobe, bluntly expanding distally (Fig. 9I). Maxilliped with outer and inner plates wide (Fig. 9J). Gnathopod 1 is smaller than gnathopod 2, with weak sexual dimorphism, stronger in males; propodus (palm) teardrop shaped, with oblique palmar margin in males and females (Fig. 8E, F). Gnathopod 2 is significantly larger in males, rectangularly elongated, with straight palmar margin in both males and females (Fig. 8H, I). Basis (article 2) of pereopods 5–7 with feebly marked ventral lobes (Fig. 10D, F, G); pereopod 3 with highly developed coiled setation along posterior margin (Figs 7D, 10A); basis of pereopod 7 elongated, ~2.5 times as long as wide, without ventral lobe (Figs 7C, 10G). Pleopods with two elongated hooks and one or two thick bristles in retinacules (Fig. 11F, G). Uropod 3 exopod broad, furnished with clusters of long, distally coiled setae, about four to six times as long as wide, with reduced distal article furnished with numerous long, simple distal setae (Figs 6D, 11K, J). Epimeral plates 1–3 with sharply produced inferoposterior corners (Fig. 11A–C). Telson deeply cleft into suboval lobes, abruptly tapering distally, bearing clusters of strong, stout setae distally and submedially (Figs 6A, 11D, E). Remarks: Males of C. trichiatus can be distinguished from males of other species of Chaetogammarus by the highly developed coiled setation on pereopod 3 posterior margin and uropod 3 exopod, acutely produced anterolateral head lobes, and telson lobes abruptly tapering distally. Chaetogammarus trichiatus is most similar to C. ischnus, but differs from that species in the following traits: significantly more elongate appendages (Fig. 5C); epimeres 2 and 3 with more produced posterodistal corners; presence of coiled setae along the outer margin of uropod 3 exopod (Fig. 6D); longer basis of pereopod 7 (length = 3 × width vs. length = 2 × width; Fig. 7C). Distribution: Chaetogammarus trichiatus is endemic to lakes, lower (slow current) river stretches and river mouths along the north-eastern Black Sea coast, from Abrau to the Shahe River, and a separate population is known from New Athos (Fig. 4). Found only on substrates with pebbles or large stones and boulders, apparently avoiding sandy and silty substrates. Type locality: Estuarine part of Khosta River, Sochi area, Russia. Presently absent at its original type locality owing to anthropogenic influence and the urban reconstruction of the lower part of the river., Published as part of Copilaș-Ciocianu, Denis, Palatov, Dmitry, Rewicz, Tomasz, Sands, Arthur F., Arbačiauskas, Kęstutis, Haaren, Ton Van, Hebert, Paul D. N., Grabowski, Michał & Marin, Ivan, 2023, A widespread Ponto-Caspian invader with a mistaken identity: integrative taxonomy elucidates the confusing taxonomy of Trichogammarus trichiatus (= Echinogammarus) (Crustacea: Amphipoda), pp. 821-846 in Zoological Journal of the Linnean Society 198 on page 834, DOI: 10.1093/zoolinnean/zlad010, http://zenodo.org/record/8152446, {"references":["Martynov AB. 1932. Contribution to the knowledge of the freshwater fauna of the Black Sea coast of Caucasus. I. Amphipoda. TraVaux de l'Institut Zoologique de l'Academie des Sciences de l'URSS 1: 73 - 98."]}

GENUS SPIROGAMMARUS COPILAȘ-CIOCIANU, PALATOV, MARIN & GRABOWSKI GEN.NOV. PALATOV, MARIN & GRABOWSKI GEN.NOV. Z o o B a n k r e g i s t r a t i o n: u r n: l s i d: z o o b a n k. o r g: a c t: D 5 2 6 9 6 B 2 - A E B A - 4 0 D B - A 7 C C - BF712AAD3780 Type and only species: Chaetogammarus tenellus major CărăuȘu, 1943. Diagnosis: Large Echinogammarus -like gammarid amphipods (≤ 16 mm). Body smooth and non-carinate. Head anterolateral lobe straight. Antenna 1 poorly setose, accessory flagellum well developed (up to nine articles). Antenna 2 flagellum and peduncle segments densely set with tufts of setae twice as long as the width of underlying segment (distally coiled in males), calceoli absent. Gnathopod 1 propodus subequal to gnathopod 2 propodus. Posterior margin of carpal and meral (sometimes ischial) articles of pereopod 3 set with dense and distally coiled setae as long as/longer than the width of underlying segment; pereopods 4–7 with sparse and short setae, dominated by spines. Uropod 3 exopod with dense setae as long as/longer than the width of underlying segment (coiled in males); endopod short and rudimentary; pleonites unarmed dorsally; epimeral plates with spines only (second straight; third with produced inferoposterior corner); urosomites 1–2 without elevations, armed with four dorsolateral clusters of two to four spines. Telson fully cleft, as long as broad, armed with distal and lateral spines, with lobes abruptly tapering distally. Etymology: From the Latin spira, meaning coil/ spiral, with reference to the coiled setae found on the antennae, gnathopods, pereopods and uropod 3 in males. The gender is masculine. Remarks: Spirogammarus can be distinguished readily from any species of Chaetogammarus and Echinogammarus s.l. by the presence of dense, distally coiled setae on the carpus and merus of pereopod 3 that are as long as/longer than the width of the underlying segment in both sexes. To our knowledge, no Echinogammarus -like taxa have females with coiled setae on the carpus and the merus of pereopod 3 (Pinkster, 1993). Spirogammarus is similar to Echinogammarus tibaldii Pinkster & Stock, 1970 with respect to the highly developed setosity of antenna 2, pereopod 3 and weakly setose pereopods 5–7 (Pinkster, 1993). However, Spirogammarus is distinguished by the weak setation of antenna 1 (highly developed), higher number of articles in the accessory flagellum (nine vs. five), coiled setae on gnathopod propodi and uropod 3 (non-coiled), and absence of long setae along the distal margin of epimeres. For further comparisons, see Supporting Information, Table S4., Published as part of Copilaș-Ciocianu, Denis, Palatov, Dmitry, Rewicz, Tomasz, Sands, Arthur F., Arbačiauskas, Kęstutis, Haaren, Ton Van, Hebert, Paul D. N., Grabowski, Michał & Marin, Ivan, 2023, A widespread Ponto-Caspian invader with a mistaken identity: integrative taxonomy elucidates the confusing taxonomy of Trichogammarus trichiatus (= Echinogammarus) (Crustacea: Amphipoda), pp. 821-846 in Zoological Journal of the Linnean Society 198 on pages 831-832, DOI: 10.1093/zoolinnean/zlad010, http://zenodo.org/record/8152446, {"references":["Carausu S. 1943. Amphipodes de Roumanie I. Gammarides de type Caspian. Bucharest: Institutul de Cercetari Piscicole al Romaniei.","Pinkster S. 1993. A revision of the genus Echinogammarus (Stebbing, 1899) with some notes on related genera. Memorie del Museo CiVico di Storia Naturale, (lia serie), (Sezione scienze della Vita. A, Biologia) 10: 1 - 183."]}

GENUS CHAETOGAMMARUS MARTYNOV, 1924 Type species: Gammarus ischnus Stebbing, 1899. I n c l u d e d s p e c i e s: C h a e t o g a m m a r u s h y r c a n u s Pjatakova 1962, C. pauxillus (Sars, 1896), C. placidus (Sars, 1896), C. aearpachoaeskyi (Sars, 1894) and C. trichiatus Martynov, 1932. Non-included species: Echinogammarus karadagiensis Grintsov, 2009 and E. mazestiensis Marin & Palatov, 2020 will be transferred to a new genus (I. Marin, D. Palatov, and D. CopilaȘ- Ciocianu, unpub. obs.). Amended diagnosis: Small- to large-sized species (≤ 15 mm); females smaller than males. Head with oblique anteroventral lobe, sometimes distally produced. Eyes large, reniform, well pigmented. Body non-carinate. Antenna 1 feebly setose, accessory flagellum two- to eight-segmented; antenna 2 usually shorter that antenna 1, without calceoli, deeply setose in males and less setose in females. Lower lip (labium) with mostly reduced inner lobes. Gnathopod 1 smaller than gnathopod 2, sexually dimorphic, stronger in males, propodus generally teardrop shaped; gnathopod 2 sexually dimorphic, stronger in males, propodus trapezoidal with oblique palmar margin. Basis of pereopods 5–7 without or with weak posteroventral lobes, dominated by spines. Uropod 3 with exopod about four to six times as long as wide, generally dominated by spines. Urosomites 1 and 2 without elevations, armed with clusters of spines; urosomite 3 with a pair of submedian spines. Telson deeply cleft into suboval lobes, bearing clusters of spines distally and submedially. Synonymized genera: Trichogammarus Hou & Sket, 2016. Distribution: The native range of the genus is restricted to the Ponto-Caspian basin. Its species occur in the Caspian Sea at up to 500 m depth, and in lagoons, estuaries and lower stretches of rivers that drain into the Black, Azov and Caspian seas., Published as part of Copilaș-Ciocianu, Denis, Palatov, Dmitry, Rewicz, Tomasz, Sands, Arthur F., Arbačiauskas, Kęstutis, Haaren, Ton Van, Hebert, Paul D. N., Grabowski, Michał & Marin, Ivan, 2023, A widespread Ponto-Caspian invader with a mistaken identity: integrative taxonomy elucidates the confusing taxonomy of Trichogammarus trichiatus (= Echinogammarus) (Crustacea: Amphipoda), pp. 821-846 in Zoological Journal of the Linnean Society 198 on pages 833-834, DOI: 10.1093/zoolinnean/zlad010, http://zenodo.org/record/8152446, {"references":["Martynov AB. 1924. Etudes sur les Crustaces de Mer du Bassin du bas Don et leur distribution ethologique. Annuaire du Musee Zoologique de l'Academie des Sciences de Russie 25: 1 - 115.","Pjatakova GM. 1962. Novye formy gammarid Kaspiiskogo Morya. Doklady Akademii Nauk Azerbaidzhanskoi SSR 18: 47 - 51.","Sars GO. 1896. Les Crustacees caspiennes. Contributions pour server a la connaissance de la faune carcinologique de la mer Caspienne. Bulletin de I'Academie Imperiale des Sciences de St. - Petersbourg 4: 421 - 489.","Martynov AB. 1932. Contribution to the knowledge of the freshwater fauna of the Black Sea coast of Caucasus. I. Amphipoda. TraVaux de l'Institut Zoologique de l'Academie des Sciences de l'URSS 1: 73 - 98.","Grintsov V. 2009. A new amphipod species Echinogammarus karadagiensis sp. n. (Amphipoda, Gammaridae) from Crimean coasts (Black Sea). Vestnik Zoologii 43: e 23.","Hou Z, Sket B. 2016. A review of Gammaridae (Crustacea: Amphipoda): the family extent, its evolutionary history, and taxonomic redefinition of genera. Zoological Journal of the Linnean Society 176: 323 - 348."]}

SPIROGAMMARUS MAJOR (CĂRĂUȘU, 1943) COMB. & STAT. NOV. Chaetogammarus tenellus major CărăuȘu, 1943. Diagnosis: Same as for genus (see above). Remarks: Spirogammarus major can be distinguished from C. trichiatus (in parentheses) by: its larger size (16 vs. 12 mm; Fig. 5C), absence of setae on the basal segment of mandibular palp, subequal gnathopod propodi (propodus 2 longer than propodus 1), straight anterolateral head lobes (acutely produced; Fig. 6B), denser setation along the inner side of the gnathopod palm (Fig. 6C), urosomites armed with clusters of two to four spines (solitary spines; Fig. 6A), uropod 3 exopod with dense setation in both sexes (only males have dense setation; Fig. 6D), and uropod 3 endopod in males is armed with spines and long setae (setae absent in both sexes; Fig. 6D). Both taxa are similar with respect to the setosity of antennae (Fig. 7A, B) and pereopod 3 (Fig. 7D). Distribution: Lagoons, estuaries and lower stretches of rivers that drain along the north-western to western shore of the Black Sea. Our morphomolecular analyses confirm that S. major is a widespread invasive species in European inland waters, being widely distributed along the Danube, lower Rhine, Oder and Dnieper rivers (Fig. 4). Type locality: Lake Shabla (Shablensko Ezero), Bulgaria., Published as part of Copilaș-Ciocianu, Denis, Palatov, Dmitry, Rewicz, Tomasz, Sands, Arthur F., Arbačiauskas, Kęstutis, Haaren, Ton Van, Hebert, Paul D. N., Grabowski, Michał & Marin, Ivan, 2023, A widespread Ponto-Caspian invader with a mistaken identity: integrative taxonomy elucidates the confusing taxonomy of Trichogammarus trichiatus (= Echinogammarus) (Crustacea: Amphipoda), pp. 821-846 in Zoological Journal of the Linnean Society 198 on page 833, DOI: 10.1093/zoolinnean/zlad010, http://zenodo.org/record/8152446, {"references":["Carausu S. 1943. Amphipodes de Roumanie I. Gammarides de type Caspian. Bucharest: Institutul de Cercetari Piscicole al Romaniei."]}

GENUS SPIROGAMMARUS COPILAȘ-CIOCIANU, PALATOV, MARIN & GRABOWSKI GEN.NOV. PALATOV, MARIN & GRABOWSKI GEN.NOV. Z o o B a n k r e g i s t r a t i o n: u r n: l s i d: z o o b a n k. o r g: a c t: D 5 2 6 9 6 B 2 - A E B A - 4 0 D B - A 7 C C - BF712AAD3780 Type and only species: Chaetogammarus tenellus major CărăuȘu, 1943. Diagnosis: Large Echinogammarus -like gammarid amphipods (≤ 16 mm). Body smooth and non-carinate. Head anterolateral lobe straight. Antenna 1 poorly setose, accessory flagellum well developed (up to nine articles). Antenna 2 flagellum and peduncle segments densely set with tufts of setae twice as long as the width of underlying segment (distally coiled in males), calceoli absent. Gnathopod 1 propodus subequal to gnathopod 2 propodus. Posterior margin of carpal and meral (sometimes ischial) articles of pereopod 3 set with dense and distally coiled setae as long as/longer than the width of underlying segment; pereopods 4–7 with sparse and short setae, dominated by spines. Uropod 3 exopod with dense setae as long as/longer than the width of underlying segment (coiled in males); endopod short and rudimentary; pleonites unarmed dorsally; epimeral plates with spines only (second straight; third with produced inferoposterior corner); urosomites 1–2 without elevations, armed with four dorsolateral clusters of two to four spines. Telson fully cleft, as long as broad, armed with distal and lateral spines, with lobes abruptly tapering distally. Etymology: From the Latin spira, meaning coil/ spiral, with reference to the coiled setae found on the antennae, gnathopods, pereopods and uropod 3 in males. The gender is masculine. Remarks: Spirogammarus can be distinguished readily from any species of Chaetogammarus and Echinogammarus s.l. by the presence of dense, distally coiled setae on the carpus and merus of pereopod 3 that are as long as/longer than the width of the underlying segment in both sexes. To our knowledge, no Echinogammarus -like taxa have females with coiled setae on the carpus and the merus of pereopod 3 (Pinkster, 1993). Spirogammarus is similar to Echinogammarus tibaldii Pinkster & Stock, 1970 with respect to the highly developed setosity of antenna 2, pereopod 3 and weakly setose pereopods 5–7 (Pinkster, 1993). However, Spirogammarus is distinguished by the weak setation of antenna 1 (highly developed), higher number of articles in the accessory flagellum (nine vs. five), coiled setae on gnathopod propodi and uropod 3 (non-coiled), and absence of long setae along the distal margin of epimeres. For further comparisons, see Supporting Information, Table S4.

Traditional morphological diagnoses of taxonomic status remain widely used while an increasing number of studies show that one morphospecies might hide cryptic diversity, i.e. lineages with unexpectedly high molecular divergence. This hidden diversity can reach even tens of lineages, i.e. hyper cryptic diversity. Even well-studied model-organisms may exhibit overlooked cryptic diversity. Such is the case of the freshwater crustacean amphipod model species Gammarus fossarum. It is extensively used in both applied and basic types of research, including biodiversity assessments, ecotoxicology and evolutionary ecology. Based on COI barcodes of 4, 926 individuals from 498 sampling sites in 19 European countries, the present paper shows 1) hyper cryptic diversity, ranging from 84 to 152 Molecular Operational Taxonomic Units, 2) ancient diversification starting already 26 Mya in the Oligocene, and 3) high level of lineage syntopy. Even if hyper cryptic diversity was already documented in G. fossarum, the present study increases its extent fourfold, providing a first continental-scale insight into its geographical distribution and establishes several diversification hotspots, notably south-eastern and central Europe. The challenges of recording hyper cryptic diversity in the future are also discussed.

Effective identification of species using short DNA fragments (DNA barcoding and DNA metabarcoding) requires reliable sequence reference libraries of known taxa. Both taxonomically comprehensive coverage and content quality are important for sufficient accuracy. For aquatic ecosystems in Europe, reliable barcode reference libraries are particularly important if molecular identification tools are to be implemented in biomonitoring and reports in the context of the EU Water Framework Directive (WFD) and the Marine Strategy Framework Directive (MSFD). We analysed gaps in the two most important reference databases, Barcode of Life Data Systems (BOLD) and NCBI GenBank, with a focus on the taxa most frequently used in WFD and MSFD. Our analyses show that coverage varies strongly among taxonomic groups, and among geographic regions. In general, groups that were actively targeted in barcode projects (e.g. fish, true bugs, caddisflies and vascular plants) are well represented in the barcode libraries, while others have fewer records (e.g. marine molluscs, ascidians, and freshwater diatoms). We also found that species monitored in several countries often are represented by barcodes in reference libraries, while species monitored in a single country frequently lack sequence records. A large proportion of species (up to 50%) in several taxonomic groups are only represented by private data in BOLD. Our results have implications for the future strategy to fill existing gaps in barcode libraries, especially if DNA metabarcoding is to be used in the monitoring of European aquatic biota under the WFD and MSFD. For example, missing species relevant to monitoring in multiple countries should be prioritized for future collaborative programs. We also discuss why a strategy for quality control and quality assurance of barcode reference libraries is needed and recommend future steps to ensure full utilisation of metabarcoding in aquatic biomonitoring. (VLID)3614700

Family: Chironomidae Newman, 1834 Subfamily: Chironominae Newman, 1834 Tribe: Tanytarsini Zavřel, 1917 Genus: Tanytarsus van der Wulp, 1874, Published as part of Giłka, Wojciech, Paasivirta, Lauri, Gadawski, Piotr & Grabowski, Michał, 2018, Morphology and molecules say: Tanytarsus latens, sp. nov. from Finland (Diptera: Chironomidae), pp. 569-579 in Zootaxa 4471 (3) on page 571, DOI: 10.11646/zootaxa.4471.3.8, http://zenodo.org/record/1439962

Tanytarsus latens sp. nov. Type material. Holotype (DIZUG), adult male specimen (excl. thorax) slide-mounted in Canada balsam: FINLAND, OSTROBOTHNIA BOREALIS, Palokkaanlampi and Rumajärvi ca. 40 km W of Rovaniemi (66°26'N 24°56'E), 7–28 August 2017, Malaise trap, J. Salmela. Paratypes: sampling data as holotype: 1 male (excl. thorax) in Canada balsam, 5 males + 1 hypopygium in Euparal (DIZUG); SATAKUNTA, Kauklastenjärvi ca. 15 km SE of Rauma (61°04'N 21°46'E), 17 August 2010, 1 male (in Euparal), hand net, L. Paasivirta (LP). DNA voucher: DNA extracted from thorax tissue in elution buffer (MIZ PAS). Derivatio nominis. From the Latin adjective meaning concealed or disguised by others. Diagnosis. Darkly coloured, relatively big [wing length: 2245–2540 (2430) µm]. Frontal tubercles small, 2–12 µm long at most. Anal tergite bands of H-type, with broad median connection. Anal point slender, with narrowly rounded apex and 2–3 spinulae. Superior volsella rounded at base, elongate, tapering towards tip, usually with apical nose curved medially. Stem of median volsella straight, slightly swollen in distal half, with irregularly arranged subulate lamellae. Description. Adult male (n = 8 + 1 male hypopygium). Colouration (in alcohol). Eyes black. Antenna, tentorium, scutal stripes, scutellum, postnotum, sternum, hypopygial apodemes and proximal leg segments, incl. femora and tibiae dark brown to black. Head capsule, mouthparts, ground colour of thorax, tarsi and abdomen brown with slight olive undertone. Wing and haltere pale brownish. Head. Eyes reniform, with dorsomedian extension gradually narrowing from 5 facets at base to 4: 4: 3/2 facets medially. Antenna with 13 distinct flagellomeres, AR 1.53–1.78 (1.66), plume fully-developed. Frontal tubercles minute, usually in shape of tiny swellings (2–3 µm), rarely conical or cylindrical, 12 µm long at most (Fig. 1A, B). Lengths of palpomeres 2–5 (in µm): 60–72 (63), 155–183 (172), 143–163 (156), 198–258 (244); pm3 always longer than pm4. Clypeus with 17–24 setae. Thorax chaetotaxy (n = 5). Ac 20–22, biserial, with several setae arranged in small field near antepronotum; Dc 11–14 on each side; Pa 1–2 on each side; Scts 4–8, usually 8. Wing (Fig. 1C). Length 2245–2540 (2430) µm. Venation pattern and chaetotaxy typical of the genus, as shown in Fig 1C; VR Cu 1.14–1.16 (n = 2). Legs. Fore leg tibia with slightly curved distally spur 25–30 µm long. Mid and hind leg tibiae with combs separated, each comb bearing spur; spurs straight or slightly curved, 28–36 µm long on mid leg and 40–55 µm long on hind leg. Basitarsus of mid leg with 4–7 sensilla chaetica. Lengths of leg segments and leg ratios as shown in Table 1. Hypopygium (Figs 2, 3). Gonostylus 160–180 µm, longer than gonocoxite. Anal tergite bands of H-type, with broad median connection (Fig. 2A). Anal tergite usually with 2 long median setae, rarely 3 setae present (n = 2) or median setae absent (n = 1); extensive microtrichia-free area surrounding posterior sections of anal tergite bands; lateral teeth and lateral setae absent; shoulders on posterior margin weak (Figs 2A, 3A). Anal point slender, evenly tapering towards narrowly rounded apex, bearing 2–3 well-developed spinulae placed between crests (Figs 2A, 3A). Superior volsella rounded at base, elongate, tapering towards narrow tip, usually with apical nose curved medially, 4–6 dorsal setae and 3 setae on anteromedian margin (proximal seta weaker), microtrichia absent; digitus long, but not extending beyond margin of superior volsella, pointed (Figs 2, 3B). Stem of median volsella 40–45 µm long, straight, slightly swollen in distal half, bearing several setiform and subulate, irregularly arranged lamellae (Fig 2B). Inferior volsella straight, stout, with distal part swollen, roundish, bearing numerous strong setae (Figs 2A, B).

Hygrobates (Hygrobates) fluviatilis (Strøm, 1768) Hygrobates fluviatilis —Pešić et al. 2010 [in part]. New records: Montenegro: Podgorica, Skadar Lake, Crnojevića River, 42°21'19.8"N 19°01'47.8"E, 01.x.2014 Zawal, Bańkowska, Michoński, Kłosowska (0/1/0); Cetinje, Skadar Lake, sublacustrine spring, Karuč, 3 m depth, 42°21'27.9"N 19°06'29.7"E, 01.x.2014 Zawal, Bańkowska, Michoński, Kłosowska (0/1/0); Podgorica, Drume, Vitoja River, spring near Skadar Lake, elodeids, 42°21'27.9"N 19°06'29.7"E, 01.x.2014 Zawal, Bańkowska, Michoński, Kłosowska (23/45/0); Podgorica, Malo Blato, Sinjac, spring, 1.5 m depth, 42°21'58.3"N 19°09'18.0"E 28.iv.2014 Zawal, Bańkowska (1/0/0); Albania: Skadar Lake near Gashaj, Syri and Sheganit spring, sublacustrine spring, 42°16'30.4"N 19°23'42.9"E 01.v.2014 Zawal, Bańkowska, Michoński, Kłosowska (1/0/0); Published records: Macedonia: Dzierzgowska et al. (2011); Zawal et al. (2011); Montenegro: Pešić et al. (2017); Bańkowska et al. (2016). Distribution: Europe, most records require confirmation due to the confusion with Hygrobates arenarius, but obviously widespread (Pešić et al. 2017)., Published as part of Pešić, Vladimir, Bańkowska, Aleksandra, Goldschmidt, Tom, Grabowski, Michał, Michoński, Grzegorz & Zawal, Andrzej, 2018, Supplement to the Checklist of water mites (Acari: Hydrachnidia) from the Balkan peninsula, pp. 151-184 in Zootaxa 4394 (2) on page 169, DOI: 10.11646/zootaxa.4394.2.1, http://zenodo.org/record/1197596, {"references":["Bankowska, A., Klosowska, M., Gadawski, P., Michonski, G., Grabowski, M., Pesic, V. & Zawal, A. (2016) Oviposition by selected water mite (Hydrachnidia) species from Lake Skadar and its catchment. Biologia, 71 (9), 1027 - 1033. https: // doi. org / 10.1515 / biolog- 2016 - 0126"]}

Atractides (Atractides) inflatus (Walter, 1925) New records: Greece: Crete, river near Livada, 35°18'29.09"N 24°51'21.095"E, 11.x.2015 Zawal, Bańkowska (1/ 1/0); Crete, Kato Zakros, Valley of the Death, stream, riffle (gravel, stones), slow current (remains of a nearly dry stream), 35°5'59.4024''N 26°14'37.0788'' E, 14.iv.2017 Goldschmidt (1/0/0). Distribution: Mediterranean, Turkey, Iran (Pešić et al. 2004)., Published as part of Pešić, Vladimir, Bańkowska, Aleksandra, Goldschmidt, Tom, Grabowski, Michał, Michoński, Grzegorz & Zawal, Andrzej, 2018, Supplement to the Checklist of water mites (Acari: Hydrachnidia) from the Balkan peninsula, pp. 151-184 in Zootaxa 4394 (2) on page 168, DOI: 10.11646/zootaxa.4394.2.1, http://zenodo.org/record/1197596, {"references":["Pesic, V., Saboori, A., Asadi, M. & Vafaei, R. (2004) Studies on water mites of the family Hygrobatidae (Acari, Hydrachnidia) from Iran, I. The water mite genus Atractides Koch, with the description of five new species. Zootaxa, 495 (1), 1 - 40. https: // doi. org / 10.11646 / zootaxa. 495.1.1"]}

Lebertia (s. str.) variolata Gerecke, 2009 New records: Montenegro: Budva, temporary stream in Bečići, stones, 42��16'52.63"N 18��52'31.38"E, 09.x.2010 Zawal, Bańkowska (1/0/0); Greece: Crete, Kato Zakros, Valley of the Death, stream, riffle (gravel, stones), slow current (remains of a nearly dry stream), 35��5'59.4024''N 26��14'37.0788''E, 14.iv.2017 Goldschmidt (7/8/2); ibid., (few meters downstream first site), 14.iv.2017 (8/8/9); ibid., rheopsammocrene, at the edge of the stream (1000 m downstream stream sites mentioned before), 35��6'3.7404''N 26��15'15.9588''E, 14.iv.2017 (3/3/1); ibid., (second rheopsammocrene 10 m beside first one), 14.iv.2017 (0/2/0). Remarks: New for Montenegro and Greece. Distribution: West Mediterranean., Published as part of Pe��i��, Vladimir, Ba��kowska, Aleksandra, Goldschmidt, Tom, Grabowski, Micha��, Micho��ski, Grzegorz & Zawal, Andrzej, 2018, Supplement to the Checklist of water mites (Acari: Hydrachnidia) from the Balkan peninsula, pp. 151-184 in Zootaxa 4394 (2) on pages 160-161, DOI: 10.11646/zootaxa.4394.2.1, http://zenodo.org/record/1197596

Hygrobates (Hygrobates) marezaensis Pešić & Dabert, 2017 Hygrobates fluviatilis —Pešić et al. 2010 [in part]. Published records: Montenegro: Pešić et al. (2017); Croatia: Pešić et al. (2017); Albania: Pešić et al. (2017). Distribution: Montenegro, Albania, Croatia.

Atractides (Atractides) sokolowi (Motaş & Tanasachi, 1948) Published records: Montenegro: Bańkowska et al. (2016). Remarks: Re-examination of the specimen published by Bańkowska et al. (2016) under the name Atractides sokolowi showed that this identification was wrong, and the specimen belongs to A. pennatus., Published as part of Pešić, Vladimir, Bańkowska, Aleksandra, Goldschmidt, Tom, Grabowski, Michał, Michoński, Grzegorz & Zawal, Andrzej, 2018, Supplement to the Checklist of water mites (Acari: Hydrachnidia) from the Balkan peninsula, pp. 151-184 in Zootaxa 4394 (2) on pages 168-169, DOI: 10.11646/zootaxa.4394.2.1, http://zenodo.org/record/1197596, {"references":["Bankowska, A., Klosowska, M., Gadawski, P., Michonski, G., Grabowski, M., Pesic, V. & Zawal, A. (2016) Oviposition by selected water mite (Hydrachnidia) species from Lake Skadar and its catchment. Biologia, 71 (9), 1027 - 1033. https: // doi. org / 10.1515 / biolog- 2016 - 0126"]}

Oxus (Oxus) longisetus (Berlese, 1885) New records: Montenegro: Bar, Skadar Lake area, Poseljani spring, Schoenoplectus sp., Juncus sp., 42°18'23.8"N 19°03'13.3"E, 03.v.2014 Zawal, Bańkowska (1/0/0). Distribution: Palaearctic., Published as part of Pešić, Vladimir, Bańkowska, Aleksandra, Goldschmidt, Tom, Grabowski, Michał, Michoński, Grzegorz & Zawal, Andrzej, 2018, Supplement to the Checklist of water mites (Acari: Hydrachnidia) from the Balkan peninsula, pp. 151-184 in Zootaxa 4394 (2) on page 161, DOI: 10.11646/zootaxa.4394.2.1, http://zenodo.org/record/1197596

Lebertia (s.str.) pusilla Koenike, 1911 New records: Bosnia and Herzegovina: Gacko, River Zalomka near Fojnica, 43��15'32.70"N 18��21'15.57"E, 3.x.2014 Pe��ić (0/1/0). Remarks: New for Bosnia and Herzegovina. Distribution: Europe, except for the northern parts., Published as part of Pe��i��, Vladimir, Ba��kowska, Aleksandra, Goldschmidt, Tom, Grabowski, Micha��, Micho��ski, Grzegorz & Zawal, Andrzej, 2018, Supplement to the Checklist of water mites (Acari: Hydrachnidia) from the Balkan peninsula, pp. 151-184 in Zootaxa 4394 (2) on page 160, DOI: 10.11646/zootaxa.4394.2.1, http://zenodo.org/record/1197596

Lebertia (s.str.) fimbriata Thor, 1899 New records: Montenegro: Podgorica, river Cem/Cijevna near border with Albania, stones, stones, 42��25'42.3"N 19��29'04.8"E, 30.ix.2014 Zawal, Bańkowska (2/0/0); Bar, Skadar Lake area, Poseljani, rheocrene, stones, moss, 0.2 m depth, 42��18'33.09"N 19��03'06.3"E, 30.iv.2014 Zawal, Bańkowska (3/0/0); Nik��ić, Rastovac, stream, stones, 42��49'28.87"N 18��54'56.91"E, 03.x.2014 Zawal, Bańkowska (0/1/0); Danilovgrad, Zeta River near Mijukosavici, 42��37'20.85"N 19��2'24.69"E, 14.x.2010 Zawal, Bańkowska (2/3/0). Remarks: New for Montenegro. Distribution: West Palaearctic., Published as part of Pe��i��, Vladimir, Ba��kowska, Aleksandra, Goldschmidt, Tom, Grabowski, Micha��, Micho��ski, Grzegorz & Zawal, Andrzej, 2018, Supplement to the Checklist of water mites (Acari: Hydrachnidia) from the Balkan peninsula, pp. 151-184 in Zootaxa 4394 (2) on pages 159-160, DOI: 10.11646/zootaxa.4394.2.1, http://zenodo.org/record/1197596

Neumania (Neumania) deltoides (Piersig, 1894) New records: Montenegro: Skadar Lake, Kruševica, 42°17'26.45"N 19°05'34.62"E 31.vii.2015 Bańkowska, Michoński, Kłosowska (7/6/1); Bar, Skadar Lake area, Poseljanski stream, eleodeids, 42°18'6.34"N 19°04'32.42"E 31.vii.2015 Bańkowska, Michoński, Kłosowska (20/1/0). Macedonia: Ohrid Lake, Struga, Myriophyllum sp., 41°10'25.5"N 20°40'34.4"E 23.vi.2009 Zawal, Stojanovski (1/0/0). Albania: Skadar Lake near Gashaj, Syri and Sheganit spring, sublacustrine spring, Acorus sp., Potamogeton sp., 0.5 m depth, 42°16'17.02"N 19°23'34.02"E, 07.x.2014 Zawal, Bańkowska (1/0/0). Published records: Macedonia: Dzierzgowska et al. (2011). Distribution: Palaearctic., Published as part of Pešić, Vladimir, Bańkowska, Aleksandra, Goldschmidt, Tom, Grabowski, Michał, Michoński, Grzegorz & Zawal, Andrzej, 2018, Supplement to the Checklist of water mites (Acari: Hydrachnidia) from the Balkan peninsula, pp. 151-184 in Zootaxa 4394 (2) on page 171, DOI: 10.11646/zootaxa.4394.2.1, http://zenodo.org/record/1197596

Lebertia (Pilolebertia) longiseta Bader, 1955 New records: Montenegro: Bar, Skadar Lake area, Poseljani spring, Schoenoplectus sp. Juncus sp., 42��18'23.8"N 19��03'13.3"E, 03.v.2014 Zawal, Bańkowska (4/6/1); ibid., 01.x.2014 Zawal, Bańkowska, Michoński, Kłosowska (4/0/0); Bar, Skadar Lake near Donji Murići, elodeids, 0.5 m depth, 42��9'48.96"N 19��13'16.176"E 18.vii.2015 Bańkowska, Michoński, Kłosowska (9/6/0); ibid., Potamogeton crispus, 1 m depth, 18.vii.2015 (2/2/0); Skadar Lake, Crnojevića River, Utricularia sp., depth 0.5 m, 42��21'19.8"N 19��01'47.8"E, 31.vii.2015 Bańkowska, Michoński, Kłosowska (1/0/0); ibid., 01.x.2014 Zawal, Bańkowska, Michoński, Kłosowska (0/1/1); Podgorica, Skadar Lake area, Morača River, gravel, 1.5 m depth, 42��16'40.476"N 19��07'23.376"E 31.vii.2015 Bańkowska, Michoński, Kłosowska (3/2/0). Albania: Skadar Lake near Omare, elodeids, 0.7 m depth, 42��8'15.4"N 19��27'56.48" E 20.vii.2015 Bańkowska, Michoński, Kłosowska (3/3/0). Macedonia: Ohrid Lake, Sveti Naum, limnocrene, rocks on bottom, 40��54'50.52"N, 20��44'29.99"E, 9.vi.2009 Zawal, Stojanovski (0/1/0). Published records: Macedonia: Zawal et al. (2011). Remarks: New for Montenegro and Albania. Distribution: Northern Alps and pre-Alps (Gerecke 2009), Poland (Bańkowska et al. 2015, Zawal et al. 2015, 2017)., Published as part of Pe��i��, Vladimir, Ba��kowska, Aleksandra, Goldschmidt, Tom, Grabowski, Micha��, Micho��ski, Grzegorz & Zawal, Andrzej, 2018, Supplement to the Checklist of water mites (Acari: Hydrachnidia) from the Balkan peninsula, pp. 151-184 in Zootaxa 4394 (2) on page 159, DOI: 10.11646/zootaxa.4394.2.1, http://zenodo.org/record/1197596

Unionicola (Unionicola) gracilipalpis (K. Viets, 1908) New records: Montenegro: Bar, Skadar Lake near Krnjice, 42o15'9.73''N 19o06'39.65'' E, 06.v.2014 Zawal, Bańkowska (0/0/1); Danilovgrad, limnocrene spring “Modro Oko” near village Braćani, sand, elodeids, 1 m depth, 42°28'53.3"N 19°07'40.4"E, 08.v.2014 Zawal, Bańkowska (0/0/1). Remarks: New for Montenegro. Distribution: Holarctic., Published as part of Pešić, Vladimir, Bańkowska, Aleksandra, Goldschmidt, Tom, Grabowski, Michał, Michoński, Grzegorz & Zawal, Andrzej, 2018, Supplement to the Checklist of water mites (Acari: Hydrachnidia) from the Balkan peninsula, pp. 151-184 in Zootaxa 4394 (2) on page 173, DOI: 10.11646/zootaxa.4394.2.1, http://zenodo.org/record/1197596

Hydryphantes (Hydryphantes) armentarius Gerecke, 1996 Published records: Bulgaria: Lyubomirova (2017). Distribution: Central Mediterranean (Di Sabatino et al. 2010)., Published as part of Pe��i��, Vladimir, Ba��kowska, Aleksandra, Goldschmidt, Tom, Grabowski, Micha��, Micho��ski, Grzegorz & Zawal, Andrzej, 2018, Supplement to the Checklist of water mites (Acari: Hydrachnidia) from the Balkan peninsula, pp. 151-184 in Zootaxa 4394 (2) on page 153, DOI: 10.11646/zootaxa.4394.2.1, http://zenodo.org/record/1197596, {"references":["Lyubomirova, L. (2017) New records of water mites (Acari: Hydrachnidia) from Iskar River Valley, Bulgaria. ZooNotes, 103, 1 - 4. Ozkan, M. & Boyaci, Y. O. (1992) Turkiye'den yeni bir Trichothyas Viets, 1936 (Thyasidae Hydrachnellae, Acari) turu. Doga-Turkish Journal of Zoology, 16, 395 - 404."]}

Hexaxonopsis (Hexaxonopsis) romijni (K. Viets, 1930) Axonopsis (Hexaxonopsis) romijni —Pešić et al. 2010, p. 76. New records: Montenegro: Bar, Skadar Lake near Donji Murici, Juncus sp., 0.7 m depth, 42°09'47.50"N 19°13'19.70"E, Zawal, Bańkowska (1/2/0); Bar, Poseljani, stream near Donje jelo, moss, 42°18'34.0 "N 19°03'06.4"E, 15.vi.2017 Pešić, Zawal, Pietrzak (3/1/0). Distribution: Western and central Europe. Remarks: Hexaxonopsis has recently been raised to full generic rank (Smith et al. 2015)., Published as part of Pešić, Vladimir, Bańkowska, Aleksandra, Goldschmidt, Tom, Grabowski, Michał, Michoński, Grzegorz & Zawal, Andrzej, 2018, Supplement to the Checklist of water mites (Acari: Hydrachnidia) from the Balkan peninsula, pp. 151-184 in Zootaxa 4394 (2) on pages 177-178, DOI: 10.11646/zootaxa.4394.2.1, http://zenodo.org/record/1197596, {"references":["Smith, I. M., Cook, D. R. & Gerecke, R. (2015) Revision of the status of some genus-level water mite taxa in the families Pionidae Thor, 1900, Aturidae Thor, 1900, and Nudomideopsidae Smith, 1990 (Acari: Hydrachnidiae). Zootaxa, 3919 (1), 111 - 156. https: // doi. org / 10.11646 / zootaxa. 3919.1.6"]}

Parabrachypoda mutila Walter, 1928 Brachypoda (Hemibrachypoda) mutila ���Pe��ić et al. 2010, p. 77. New records: Montenegro: Bar, Skadar Lake area, Poseljani, rheocrene, stones, moss, 0.2 m depth, 42��18'33.09"N 19��03'06.3"E, 19.vii.2014 Bańkowska, Michoński, Kłosowska (2/0/0)., Published as part of Pe��i��, Vladimir, Ba��kowska, Aleksandra, Goldschmidt, Tom, Grabowski, Micha��, Micho��ski, Grzegorz & Zawal, Andrzej, 2018, Supplement to the Checklist of water mites (Acari: Hydrachnidia) from the Balkan peninsula, pp. 151-184 in Zootaxa 4394 (2) on page 178, DOI: 10.11646/zootaxa.4394.2.1, http://zenodo.org/record/1197596

Hygrobates (Hygrobates) longipalpis (Hermann, 1804) New records: Montenegro: Podgorica, Skadar Lake area, Drume, Vitoja spring, rheolimnocrene, sand, 0.5 m depth, 42°19'32.5"N 19°21'45.9"E, 27.iv.2014 Zawal, Bańkowska (103/76/2); ibid., 02.x.2014 Zawal, Bańkowska, Michoński, Kłosowska (1/1/2); Bar, Skadar Lake area, Poseljani spring, Schoenoplectus sp., Juncus sp., 42°18'23.8"N 19°03'13.3"E, 03.v.2014 Zawal, Bańkowska (5/0/0); Danilovgrad, limnocrene spring “Modro Oko” near village Braćani, sand, elodeids, 1 m depth, 42°28'53.3" N 19°07'40.4"E, 29.ix.2014 Zawal, Bańkowska (125/ 82/17). Published records: Macedonia: Dzierzgowska et al. (2011); Zawal et al. (2011). Distribution: Holarctic., Published as part of Pešić, Vladimir, Bańkowska, Aleksandra, Goldschmidt, Tom, Grabowski, Michał, Michoński, Grzegorz & Zawal, Andrzej, 2018, Supplement to the Checklist of water mites (Acari: Hydrachnidia) from the Balkan peninsula, pp. 151-184 in Zootaxa 4394 (2) on page 169, DOI: 10.11646/zootaxa.4394.2.1, http://zenodo.org/record/1197596

Hydrodroma pilosa Besseling, 1940 New records: Montenegro: Podgorica, rheocrene near Cem/Cijevna River, near border with Albania, stones, 42��25'26.7"N 19��27'41.3"E, 30.ix.2014 Zawal, Bańkowska (0/3/0). Distribution: Western Palaearctic., Published as part of Pe��i��, Vladimir, Ba��kowska, Aleksandra, Goldschmidt, Tom, Grabowski, Micha��, Micho��ski, Grzegorz & Zawal, Andrzej, 2018, Supplement to the Checklist of water mites (Acari: Hydrachnidia) from the Balkan peninsula, pp. 151-184 in Zootaxa 4394 (2) on page 157, DOI: 10.11646/zootaxa.4394.2.1, http://zenodo.org/record/1197596

Piona alpicola (Neuman, 1880) New records: Montenegro: Podgorica, Malo Blato, Sinjac, river, Batrachium sp., Potamogeton crispus, Fontinalis sp., 42°21'58.3"N 19°09'18.0"E, 27.iv.2014 Zawal, Bańkowska (1/0/0). Published records: Macedonia: Dzierzgowska et al. (2011). Remarks: New for Montenegro. Distribution: Holarctic., Published as part of Pešić, Vladimir, Bańkowska, Aleksandra, Goldschmidt, Tom, Grabowski, Michał, Michoński, Grzegorz & Zawal, Andrzej, 2018, Supplement to the Checklist of water mites (Acari: Hydrachnidia) from the Balkan peninsula, pp. 151-184 in Zootaxa 4394 (2) on page 174, DOI: 10.11646/zootaxa.4394.2.1, http://zenodo.org/record/1197596

Atractides (Atractides) oblongus (Walter, 1944) Published records: Bulgaria: Lyubomirova (2017). Distribution: Alps, central Europe, Carpathians and the Balkan (Gerecke et al. 2016)., Published as part of Pešić, Vladimir, Bańkowska, Aleksandra, Goldschmidt, Tom, Grabowski, Michał, Michoński, Grzegorz & Zawal, Andrzej, 2018, Supplement to the Checklist of water mites (Acari: Hydrachnidia) from the Balkan peninsula, pp. 151-184 in Zootaxa 4394 (2) on page 168, DOI: 10.11646/zootaxa.4394.2.1, http://zenodo.org/record/1197596, {"references":["Lyubomirova, L. (2017) New records of water mites (Acari: Hydrachnidia) from Iskar River Valley, Bulgaria. ZooNotes, 103, 1 - 4. Ozkan, M. & Boyaci, Y. O. (1992) Turkiye'den yeni bir Trichothyas Viets, 1936 (Thyasidae Hydrachnellae, Acari) turu. Doga-Turkish Journal of Zoology, 16, 395 - 404.","Gerecke, R., Gledhill, T., Pesic, V. & Smit, H. (2016) Chelicerata: Acari III. In: Gerecke, R. (Ed.), Susswasserfauna von Mitteleuropa. Bd. 7 / 2 - 3, Springer-Verlag Berlin, Heidelberg, pp. 1 - 429. https: // doi. org / 10.1007 / 978 - 3 - 8274 - 2689 - 5"]}

Arrenurus (Arrenurus) cuspidifer Piersig, 1894 New records: Montenegro: Podgorica, Skadar Lake area, Drume, stream Vitoja, 42o19'32.5"N 19o21'45.9"E, 27.iv.2014 Zawal, Bańkowska (1/0/0). Distribution: Palaearctic., Published as part of Pe��i��, Vladimir, Ba��kowska, Aleksandra, Goldschmidt, Tom, Grabowski, Micha��, Micho��ski, Grzegorz & Zawal, Andrzej, 2018, Supplement to the Checklist of water mites (Acari: Hydrachnidia) from the Balkan peninsula, pp. 151-184 in Zootaxa 4394 (2) on page 180, DOI: 10.11646/zootaxa.4394.2.1, http://zenodo.org/record/1197596

Lebertia (Mixolebertia) separata Lundblad, 1930 New records: Montenegro: Nik��ić, Rastovac, spring, stones, 42��49'28.87"N 18��54'56.91"E, 03.x. 201, Zawal, Bańkowska (0/1/0). Distribution: Central and southeastern Europe., Published as part of Pe��i��, Vladimir, Ba��kowska, Aleksandra, Goldschmidt, Tom, Grabowski, Micha��, Micho��ski, Grzegorz & Zawal, Andrzej, 2018, Supplement to the Checklist of water mites (Acari: Hydrachnidia) from the Balkan peninsula, pp. 151-184 in Zootaxa 4394 (2) on page 161, DOI: 10.11646/zootaxa.4394.2.1, http://zenodo.org/record/1197596

Brachypodopsis (Brachypodopsis) gracilis Piersig, 1903 Axonopsis (Brachypodopsis) gracilis ���Pe��ić et al. 2010, p. 76. New records: Montenegro: Bar, Skadar Lake near Donji Murići, Juncus sp., 0.7 m depth, 42��09'47.50"N 19��13'19.70"E, 05.x.2014 Zawal, Bańkowska (1/0/0). Distribution: Central and southeastern Europe (Gerecke et al. 2016). Remarks: Brachypodopsis has recently been raised to full generic rank (Smith et al. 2015)., Published as part of Pe��i��, Vladimir, Ba��kowska, Aleksandra, Goldschmidt, Tom, Grabowski, Micha��, Micho��ski, Grzegorz & Zawal, Andrzej, 2018, Supplement to the Checklist of water mites (Acari: Hydrachnidia) from the Balkan peninsula, pp. 151-184 in Zootaxa 4394 (2) on page 177, DOI: 10.11646/zootaxa.4394.2.1, http://zenodo.org/record/1197596, {"references":["Gerecke, R., Gledhill, T., Pesic, V. & Smit, H. (2016) Chelicerata: Acari III. In: Gerecke, R. (Ed.), Susswasserfauna von Mitteleuropa. Bd. 7 / 2 - 3, Springer-Verlag Berlin, Heidelberg, pp. 1 - 429. https: // doi. org / 10.1007 / 978 - 3 - 8274 - 2689 - 5","Smith, I. M., Cook, D. R. & Gerecke, R. (2015) Revision of the status of some genus-level water mite taxa in the families Pionidae Thor, 1900, Aturidae Thor, 1900, and Nudomideopsidae Smith, 1990 (Acari: Hydrachnidiae). Zootaxa, 3919 (1), 111 - 156. https: // doi. org / 10.11646 / zootaxa. 3919.1.6"]}

Oxus (Gnaphiscus) setosus (Koenike, 1898) New records: Montenegro: Podgorica, Drume, Vitoja River near Skadar Lake, Nuphar lutea, 42°19'32.5"N 19°21'45.9"E, 05.x.2014 Zawal, Bańkowska (1/0/0). Remarks: New for Montenegro. Distribution: Palaearctic., Published as part of Pešić, Vladimir, Bańkowska, Aleksandra, Goldschmidt, Tom, Grabowski, Michał, Michoński, Grzegorz & Zawal, Andrzej, 2018, Supplement to the Checklist of water mites (Acari: Hydrachnidia) from the Balkan peninsula, pp. 151-184 in Zootaxa 4394 (2) on page 162, DOI: 10.11646/zootaxa.4394.2.1, http://zenodo.org/record/1197596

Atractides (Atractides) gibberipalpis Piersig, 1898 New records: Montenegro: Podgorica, Skadar Lake area, Drume, spring, Fontinalis sp., 0.5 m depth, 42��29'04.2"N 19��07'21.1"E, 29.ix.2014 Zawal, Bańkowska (1/0/0); Nik��ić, Rastovac, limnocrene, gravel, moss, 42��49'28.87"N 18��54'56.91"E, 03.x.2014 Zawal, Bańkowska (2/3/0); Podgorica, river Cem/Cijevna near border with Albania, stones, 42��25'42.3"N 19��29'04.8"E, 30.ix.2015 Zawal, Bańkowska (1/0/0); Nik��ić, stream Vidrovan, stones, gravel, Batrachium sp., 0.3 m depth, 42o51'27.1"N 18o56'29.4"E, 17.vi. 2017 Pe��ić, Zawal, Pietrzak (0/1/0). Distribution: Palaearctic., Published as part of Pe��i��, Vladimir, Ba��kowska, Aleksandra, Goldschmidt, Tom, Grabowski, Micha��, Micho��ski, Grzegorz & Zawal, Andrzej, 2018, Supplement to the Checklist of water mites (Acari: Hydrachnidia) from the Balkan peninsula, pp. 151-184 in Zootaxa 4394 (2) on page 167, DOI: 10.11646/zootaxa.4394.2.1, http://zenodo.org/record/1197596

Lebertia (s. str.) maglioi Thor, 1907 New records: Montenegro: Danilovgrad, Zeta River near Dobropolje, gravel, strong current, 0.7 m depth, 42°36'56.37"N 19°3'12.61"E, 14.x.2010 Zawal, Bańkowska (1/0/0). Distribution: West Palaearctic.

Protzia halberti (Walter, 1920) New records: Montenegro: Nikšić, Vidrovan stream, rheocrene, moss, Batrachium sp., 42°51'26.6''N 18°56'33.7''E, 17.vi.2017 Pešić, Zawal, Pietrzak (0/1/0); ibid., reservoir, gravel, Batrachium sp., 42°51'27.80"N 18°56'29.57"E, 14.vi.2017 (0/1/0). Published records: Bulgaria: Lyubomirova (2017). Distribution: Ireland, Central Europe, Balkan (Pešić et al. 2010)., Published as part of Pešić, Vladimir, Bańkowska, Aleksandra, Goldschmidt, Tom, Grabowski, Michał, Michoński, Grzegorz & Zawal, Andrzej, 2018, Supplement to the Checklist of water mites (Acari: Hydrachnidia) from the Balkan peninsula, pp. 151-184 in Zootaxa 4394 (2) on page 154, DOI: 10.11646/zootaxa.4394.2.1, http://zenodo.org/record/1197596, {"references":["Lyubomirova, L. (2017) New records of water mites (Acari: Hydrachnidia) from Iskar River Valley, Bulgaria. ZooNotes, 103, 1 - 4. Ozkan, M. & Boyaci, Y. O. (1992) Turkiye'den yeni bir Trichothyas Viets, 1936 (Thyasidae Hydrachnellae, Acari) turu. Doga-Turkish Journal of Zoology, 16, 395 - 404."]}

Hexaxonopsis (Hexaxonopsis) serrata (Walter, 1928) Axonopsis (Hexaxonopsis) serrata —Pešić et al. 2010, p. 76. New records: Montenegro Bar, Skadar Lake near Donji Murići, phytolitoral, 0.3 m depth, 42°9'48.96"N 19°13'16.18"E, 05.x.2014 Zawal, Bańkowska (34/0/0), ibid., 18.vii.2015 Bańkowska, Michoński, Kłosowaka (5/0/ 0); ibid., Potamogeton crispus, 1 m depth, 05.x.2014 Zawal, Bańkowska (8/0/0); ibid., gravel, 1.5 m depth, 05.x.2014 (8/0/0), Bar, Skadar Lake near Donji Murići, gravel, 1.5 m depth, 42°11'20.5"N 19°11'45.3"E, 23.vii.2015 Bańkowska, Michoński, Kłosowaka (0/2/0); ibid., mud, 4 m depth, 42°11'28.6"N 19°11'49.2"E, 02.x.2014 (0/3/0); ibid., mud, 4.5 m depth, 42°11'24.1"N 19°11'47.3"E, 02.x.2014 (0/1/0); ibid., mud, 5 m depth, 42°11'51.8"N 19°12'9.2"E, 02.x.2014 (2/2/0); ibid., phytolitoral, 2.5 m depth, 42°09'47.50"N 19°13'19.70"E, 05.x.2014 Zawal, Bańkowska (0/1/0); ibid., Juncus sp., 0.7 m depth, 05.x.2014 (0/1/0); Bar, Skadar Lake near Donja Seoca, sublacustrine spring Raduš, phytolitoral, 0.5 m depth, 42°13'23.42"N 19°09'54.94"E, 23.vii.2015 Bańkowska, Michoński, Kłosowska (2/25/0); ibid., phytolitoral, 2.5 m depth, 42°13'33.82"N 19°09'54.0"E, 23.vii.2015 Bańkowska, Michoński, Kłosowska (0/10/1); ibid., 3 m depth, 42°13'39.65"N 19°09'48.82"E, 23.vii.2015 (0/1/0); ibid., 18 m depth, 42°13'32.20"N 19°09'38.92"E, 23.vii.2015 (0/6/0); Podgorica, Skadar Lake near Donja Plavnica, Juncus sp., 1 m depth, 42°15'9.32"N 19°10'50.12"E, 23.vii.2015 Bańkowska, Michoński, Kłosowska (1/0/0); ibid., 2 m depth, 42°14'50.14"N 19°10'54.55"E, 23.vii.2015 (0/2/0). Distribution: SW Palaearctic., Published as part of Pešić, Vladimir, Bańkowska, Aleksandra, Goldschmidt, Tom, Grabowski, Michał, Michoński, Grzegorz & Zawal, Andrzej, 2018, Supplement to the Checklist of water mites (Acari: Hydrachnidia) from the Balkan peninsula, pp. 151-184 in Zootaxa 4394 (2) on page 178, DOI: 10.11646/zootaxa.4394.2.1, http://zenodo.org/record/1197596

Piona pusilla (Neuman, 1875) New records: Montenegro: Cetinje, Skadar Lake near Karuč, Nuphar luteum, Myriophyllum sp., 2 m depth, 42°21'31.1"N 19°06'22.8"E, 27.iv.2014 Zawal, Bańkowska (0/1/0); Podgorica, Drume, Skadar Lake area, spring near Vitoja River, sand, 0.5 m depth, 42°19'32.5"N 19°21'45.9"E, 27.iv.2014 Zawal, Bańkowska (0/1/0). Macedonia: Ohrid Lake near Gorica, Charophyceae sp., Polygonum sp., 41°5'5.39"N 20°47'45.73"E, 18.vi.2009 Zawal, Stojanovski (1/0/0); Ohrid Lake near Monastir Bogarodica, rocks, 41°6'41.21"N 20°47'17.75"E, 22.vi.2009 Zawal, Stojanovski (2/0/0); Ohrid Lake near Ohrid, near University Hostel, Charaphyceae sp., 41°6'20.87"N 20°48'26.11"E, 21.vi.2009 Zawal, Stojanovski (1/0/0); Ohrid Lake near Kaliste, muddy bottom, 41°8'58.43"N 20°39'4.04"E, 22.vi.2009 Zawal, Stojanovski (1/0/0); Zawal, Stojanovski (1/0/0); Ohrid Lake near Ohrid, shore near Hydrobiological Institute, rocks, 41°6'10.33"N 20°48'23.88"E, 24.vi.2009 Zawal, Stojanovski (2/0/0); Podgoricko Lake, near border with Albania, near Shebenik-Jabllanicë National Park, 41°15'31.64"N 20°31'22.15"E, 30.vi.2009 Zawal, Stojanovski (14/2/0); ibid., small reservoir, 0.2 m depth, 30.vi.2009 (7/0/0); Prespa Lake near Sirhan, muddy bottom, plants, 40°59'58.66"N 20°56'15.94"E, 25.vi.2009 Zawal, Stojanovski (2/ 0/0); Ohrid, small reservoir near Hydrobiological Institute, 41°6'4.82"N 20°48'50.73"E, 1.vii.2009 Zawal, Stojanovski (5/0/0). Published records: Macedonia: Dzierzgowska et al. (2011); Zawal et al. (2011). Distribution: Holarctic., Published as part of Pešić, Vladimir, Bańkowska, Aleksandra, Goldschmidt, Tom, Grabowski, Michał, Michoński, Grzegorz & Zawal, Andrzej, 2018, Supplement to the Checklist of water mites (Acari: Hydrachnidia) from the Balkan peninsula, pp. 151-184 in Zootaxa 4394 (2) on page 175, DOI: 10.11646/zootaxa.4394.2.1, http://zenodo.org/record/1197596

Neumania (Neumania) uncinata Walter, 1927 New records: Greece: Crete, small stream near Garazo, gravel, mud, 35��20'44.23"N 24��46'48.935"E, 11.x.2015 Zawal, Bańkowska (26/21/0). Distribution: Western Palaearctic., Published as part of Pe��i��, Vladimir, Ba��kowska, Aleksandra, Goldschmidt, Tom, Grabowski, Micha��, Micho��ski, Grzegorz & Zawal, Andrzej, 2018, Supplement to the Checklist of water mites (Acari: Hydrachnidia) from the Balkan peninsula, pp. 151-184 in Zootaxa 4394 (2) on page 171, DOI: 10.11646/zootaxa.4394.2.1, http://zenodo.org/record/1197596

Piona disparilis (Koenike, 1895) New records: Montenegro: Danilovgrad, limnocrene spring “Modro Oko” near village Braćani, stream beneath lake, sand, plants, 42°28'53.3"N 19°07'40.4"E, 29.ix.2014 Zawal, Bańkowska (2/10/2); Bar, Skadar Lake area, Virpazar, limnocrene, Mentha sp., Schoenoplectus sp., Phragmites australis, 0.7 m depth, 42°15'02.9"N 19°05'59.8"E, 2.x.2014 Zawal, Bańkowska (0/1/0); Skadar Lake near Cetinje, Karuč, Nuphar luteum, Myriophyllum sp., 2 m depth, 42°21'31.1"N 19°06'22.8"E, 28.iv.2014 Zawal, Bańkowska (1/0/0). Albania: Gashaj, river, 0.2 m depth, 42°16'17.02"N 19°23'34.02"E, 30.iv.2014 Zawal, Bańkowska (0/1/0); Skadar Lake near Gashaj, Syri and Sheganit spring, limnocrene, mud, 0.5 m depth, 42°16'30.4"N 19°23'42.9"E, 07.x.2014 Zawal, Bańkowska (0/1/0). Published records: Montenegro: Bańkowska et al. (2016). Remarks: New for Albania. Distribution: Western Palaearctic., Published as part of Pešić, Vladimir, Bańkowska, Aleksandra, Goldschmidt, Tom, Grabowski, Michał, Michoński, Grzegorz & Zawal, Andrzej, 2018, Supplement to the Checklist of water mites (Acari: Hydrachnidia) from the Balkan peninsula, pp. 151-184 in Zootaxa 4394 (2) on page 175, DOI: 10.11646/zootaxa.4394.2.1, http://zenodo.org/record/1197596, {"references":["Bankowska, A., Klosowska, M., Gadawski, P., Michonski, G., Grabowski, M., Pesic, V. & Zawal, A. (2016) Oviposition by selected water mite (Hydrachnidia) species from Lake Skadar and its catchment. Biologia, 71 (9), 1027 - 1033. https: // doi. org / 10.1515 / biolog- 2016 - 0126"]}

Hygrobates (Rivobates) zawali Pe��ić, 2015 Hygrobates (Rivobates) diversiporus��� Pe��ić et al. (2010) [in part]. Published records: Macedonia: ��� Hygrobates diversiporus ��� Dovgal et al. (2012); Pe��ić (2015). Distribution: Only known from the Lake Ohrid, Macedonia., Published as part of Pe��i��, Vladimir, Ba��kowska, Aleksandra, Goldschmidt, Tom, Grabowski, Micha��, Micho��ski, Grzegorz & Zawal, Andrzej, 2018, Supplement to the Checklist of water mites (Acari: Hydrachnidia) from the Balkan peninsula, pp. 151-184 in Zootaxa 4394 (2) on page 170, DOI: 10.11646/zootaxa.4394.2.1, http://zenodo.org/record/1197596

Lebertia (s. str.) schechteli Thor, 1913 New records: Montenegro: Nikšić, Vidrovan stream, stones, gravel, 42°51'27.1"N 18°56'29.4"E, 17.vi.2017 Pešić, Zawal, Pietrzak (3/4/0). Macedonia: Podgoricko Lake, rheocrene at the lake shore, near border with Albania, near Shebenik-Jabllanicë National Park, 41°15'31.64"N 20°31'22.15"E, 30.vi.2009 Zawal, Stojanovski (1/0/0). Published records: Macedonia: Zawal et al. (2011). Distribution: Western, central and southeastern Europe.

Limnesia (Limnesia) undulatoides Davids, 1997 New records: Montenegro: Bar, Skadar Lake area, Poseljani spring, Schoenoplectus sp., Juncus sp., 42��18'23.8"N 19��03'13.3"E, 03.v.2014 Zawal, Bańkowska (17/2/0); ibid., Nuphar lutea, 42��18'23.8"N 19��03'13.3"E, 03.v.2014 (11/2/0); ibid., Mentha sp., 03.v.2014 (4/1/0); Podgorica, Malo Blato, Sinjac, spring, Phragmites australis, 42��21'58.3"N 19��09'18.0"E, 28.iv.2014 Zawal, Bańkowska (1/0/1); Podgorica, Skadar Lake area, Drume, spring near Vitoja River, sand, 0.5 m depth, 42��19'32.5"N 19��21'45.9"E, 27.iv.2014 Zawal, Bańkowska (1/0/0); Bar, Skadar Lake near Liponjak, Ceratophyllum sp., 3 m depth, 42o18���13.7���N 19o05���59.8���E, 08.v.2014 Zawal, Bańkowska (0/1/0); ibid., gravel, 3 m depth, 42��18'06.8"N 19��05'31.6"E, 03.x.2014 (0/1/0); Bar, Skadar Lake near Kru��evica, near bridge, gravel, 0.5 m depth, 42��16'4.98"N 19��06'48.53"E 03.v.2014 Zawal, Bańkowska (0/2/0); Podgorica, Skadar Lake area, Crnojevića River, Utricularia sp., 42��21'19.8"N 19��01'47.8"E, 31.vii.2015 Bańkowska, Michoński, Kłosowska (0/2/0). Macedonia: Ohrid Lake near Hydrobiological Institute in Ohrid, gravel, 0.5 m depth, 41��6'4.82"N 20��48'50.73"E, 01.vii.2009 Zawal, Stojanovski (11/0/0); Ohrid Lake near Eleshec, gravel, 0.5 m depth, 41��2'6.43"N 20��48'15.93"E 20.vi.2009 Zawal, Stojanovski (1/0/0); Ohrid Lake near Kaliste, mud, 0.5 m depth, 41��8'58.43"N 20��39'4.04"E, 22.vi.2009 Zawal, Stojanovski (2/0/0). Published records: Macedonia: Dzierzgowska et al. (2011). Distribution: Probably Palaearctic (Gerecke et al. 2016)., Published as part of Pe��i��, Vladimir, Ba��kowska, Aleksandra, Goldschmidt, Tom, Grabowski, Micha��, Micho��ski, Grzegorz & Zawal, Andrzej, 2018, Supplement to the Checklist of water mites (Acari: Hydrachnidia) from the Balkan peninsula, pp. 151-184 in Zootaxa 4394 (2) on pages 166-167, DOI: 10.11646/zootaxa.4394.2.1, http://zenodo.org/record/1197596, {"references":["Gerecke, R., Gledhill, T., Pesic, V. & Smit, H. (2016) Chelicerata: Acari III. In: Gerecke, R. (Ed.), Susswasserfauna von Mitteleuropa. Bd. 7 / 2 - 3, Springer-Verlag Berlin, Heidelberg, pp. 1 - 429. https: // doi. org / 10.1007 / 978 - 3 - 8274 - 2689 - 5"]}

Protzia invalvaris Piersig, 1898 New records: Montenegro: Kola��in, Tara River near ���Raj��� restaurant, stones, 42��41'07.3"N 19��31'28.1"E, 16.vi.2017 Pe��ić, Zawal, Pietrzak (4/2/0); Kola��in, stream near Opasanica, stones, 0.2 m depth, 42��40'55.8"N 19��33'03.5"E, 16.vi.2017 Pe��ić, Zawal, Pietrzak (1/0/0); Bar, Skadar Lake area, Krnjice, stream, stones, moss, 42��12'45.7"N 19��10'45.5"E, 05.v.2014 Zawal, Bańkowska (1/0/0). Published records: Montenegro: Dovgal & Pe��ić (2012). Remarks: Re-examination of the specimen published by Bańkowska et al. (2016) under name of Protzia pachygnatha showed that this identification was erroneous, and the specimen examined belongs to P. invalvaris. Distribution: Palaearctic., Published as part of Pe��i��, Vladimir, Ba��kowska, Aleksandra, Goldschmidt, Tom, Grabowski, Micha��, Micho��ski, Grzegorz & Zawal, Andrzej, 2018, Supplement to the Checklist of water mites (Acari: Hydrachnidia) from the Balkan peninsula, pp. 151-184 in Zootaxa 4394 (2) on page 154, DOI: 10.11646/zootaxa.4394.2.1, http://zenodo.org/record/1197596, {"references":["Bankowska, A., Klosowska, M., Gadawski, P., Michonski, G., Grabowski, M., Pesic, V. & Zawal, A. (2016) Oviposition by selected water mite (Hydrachnidia) species from Lake Skadar and its catchment. Biologia, 71 (9), 1027 - 1033. https: // doi. org / 10.1515 / biolog- 2016 - 0126"]}

Lebertia (Pilolebertia) inaequalis (Koch, 1837) New records: Montenegro: Kolašin, near Hostel “Jezero”, limnocrene, Batrachium sp., Nuphar lutea, 1 m depth, 42o47’9.52”N 19o13’8.64”E, 05.v.2014 Zawal, Bańkowska (1/0/0); Bar, Skadar Lake near Donji Murići, stones, 0.5 m depth, 42°09'47.50"N 19°13'19.70"E, 30.ix.2014 Zawal, Bańkowska (6/2/1); Bar, Skadar Lake area, Poseljani spring, Schoenoplectus sp., Juncus sp., 42°18'23.8"N 19°03'13.3"E, 03.v.2014 Zawal, Bańkowska (3/1/0); ibid., 01.x.2014 Zawal, Bańkowska, Michoński, Kłosowska (1/0/3); Podgorica, Cem/Cijevna River near border with Albania, stones, 42°25'42.3"N 19°29'04.8"E, 30.ix.2014 Zawal, Bańkowska (0/1/0); Podgorica, Malo Blato, Sinjac, river, Batrachium sp., Potamogeton crispus, Fontinalis sp., 42°21'58.3"N 19°09'18.0"E, 28.iv.2014 Zawal, Bańkowska (22/29/108); Podgorica, Drume, Vitoja River near Skadar Lake, Nuphar lutea, 42°19'32.5"N 19°21'45.9"E, 27.iv.2014 Zawal, Bańkowska (3/5/10); ibid., rheolimnocrene, sand, 0.5 m depth, 42°19'32.5"N 19°21'45.9"E, 27.iv.2014 (0/2/0); Podgorica, Skadar Lake near Donja Plavnica, Ceratophyllum sp., 2 m depth, 42°16'21.09"N 19°12'02.07"E, 27.iv.2014 Zawal, Bańkowska (0/1/1); Danilovgrad, limnocrene spring “Modro Oko” near village Braćani, sand, elodeids, 1 m depth, 42°28'53.3"N 19°07'40.4"E, 29.ix.2014 Zawal, Bańkowska (1/1/0); Podgorica, Mareza canal, 42°28'31.86"N 19°10'49.10"E, 19.x.2010 Pešić (3/1/0); Podgorica, spring “Kraljičino Oko”, 42°29'9.52"N 19°10'25.35"E, 5.iii.2017 Pešić (0/2/0). Macedonia: Ohrid Lake near Ohrid, gravel, 0.5 m depth, 41°6'10.79"N 20°48'23.53"E, 10.ii.2009 Zawal, Stojanovski (1/0/0); Ohrid Lake about 1 km S from Lagadin, mud, 0.2 m depth, 41°2'47.1"N 20°48'7.86"E, 11.ii.2009 Zawal, Stojanovski (0/1/0); Ohrid Lake near Gradiste, sand, Chara sp., 3 m depth, 40°59'38.52"N 20°47'55.27"E, 24.ii.2009 Zawal, Stojanovski (5/19/0); Ohrid Lake near University Hostel, rocks, 3 m depth, 41°6'20.87"N 20°48'26.11"E, 18.ii.2009 Zawal, Stojanovski (15/6/0); Ohrid Lake near Ljubanista, gravel, Phragmites australis, 0.5 m depth, 40°55'26.86"N 20°46'0.41"E, 11.ii.2009 Zawal, Stojanovski (2/0/0); Ohrid Lake near Gorica, rocks, 0.5 m depth, 41°5'5.39"N 20°47'45.73"E, 13.ii.2009 Zawal, Stojanovski (7/2/0); Ohrid Lake near Hotel Astor, rocks, 41°6'7.08"N 20°48'21.2"E, 24.vi.2009 Zawal, Stojanovski (1/0/0); Ohrid Lake near Eleshec, Carex sp., 41°2'6.43"N 20°48'15.93"E, 20.vi.2009 Zawal, Stojanovski (1/0/0); limnocrene ”Podgoricko Lake” near border with Albania (near Shebenik-Jabllanicë National Park), W from Podgorci, Carex sp., 41°15'31.64"N 20°31'22.15"E, 30.vi.2009 Zawal, Stojanovski (1/0/0); Sveti Naum, near Ohrid Lake, stream from limnocrene, rocks on bottom, 40°54'50.52"N 20°44'29.99"E, 19.vi.2009 Zawal, Stojanovski (5/0/0); Sveti Naum, near Ohrid Lake, stream, sand, rocks, 40°54'50.52"N 20°44'29.99"E, 19.vi.2009 Zawal, Stojanovski (9/11/0). Published records: Macedonia: Zawal et al. (2011), Dzierzgowska et al. (2011); Montenegro: Bańkowska et al. (2016). Distribution: Palaearctic., Published as part of Pešić, Vladimir, Bańkowska, Aleksandra, Goldschmidt, Tom, Grabowski, Michał, Michoński, Grzegorz & Zawal, Andrzej, 2018, Supplement to the Checklist of water mites (Acari: Hydrachnidia) from the Balkan peninsula, pp. 151-184 in Zootaxa 4394 (2) on pages 157-158, DOI: 10.11646/zootaxa.4394.2.1, http://zenodo.org/record/1197596, {"references":["Bankowska, A., Klosowska, M., Gadawski, P., Michonski, G., Grabowski, M., Pesic, V. & Zawal, A. (2016) Oviposition by selected water mite (Hydrachnidia) species from Lake Skadar and its catchment. Biologia, 71 (9), 1027 - 1033. https: // doi. org / 10.1515 / biolog- 2016 - 0126"]}

Teutonia (Teutonia) cometes (Koch, 1837) New records: Montenegro: Podgorica, Skadar Lake near Donja Plavnica, sublacustrine spring, 7 m depth, 42°13'43.7"N 19°13'23.8"E, 05.v.2014 Zawal, Bańkowska (0/1/0); ibid., Nuphar lutea, 1.5 m depth, 05.v.2014 (0/ 0/1); Kolašin, near Hostel “Jezero”, limnocrene, Batrachium sp., Nuphar lutea, 42o47’9.52”N 19o13’8.64”E, 05.v.2014 Zawal, Bańkowska (0/1/0); Podgorica, Malo Blato, Sinjac, river, Batrachium sp., Potamogeton crispus, Fontinalis sp., 42°21'58.3"N 19°09'18.0 " E, 28.iv.2014 Zawal, Bańkowska (2/0/0); Podgorica, Malo Blato, Sinjac, spring, 1.5 m depth, 42°21'58.3"N 19°09'18.0"E, 28.iv.2014 Zawal, Bańkowska (0/1/0). Distribution: Palaearctic., Published as part of Pešić, Vladimir, Bańkowska, Aleksandra, Goldschmidt, Tom, Grabowski, Michał, Michoński, Grzegorz & Zawal, Andrzej, 2018, Supplement to the Checklist of water mites (Acari: Hydrachnidia) from the Balkan peninsula, pp. 151-184 in Zootaxa 4394 (2) on page 163, DOI: 10.11646/zootaxa.4394.2.1, http://zenodo.org/record/1197596

Unionicola (Unionicola) crassipes (Müller, 1776) New records: Montenegro: Bar, Skadar Lake near Krnjice, 42°17'51.9''N 19°5'5.79''E, 06.v.2014, Zawal, Bańkowska (1/0/0); Podgorica, Skadar Lake area, Crnojevića River, 42°21'19.8"N 19°01'47.8"E, 23.vii.2015 Bańkowska, Michoński, Kłosowska (1/1/0); ibid., Utricularia sp., depth 0.5 m, 31.vii.2015 (1/0/0); Skadar Lake near Kruševica, Trapa natans, Nuphar lutea, 0.5 m depth, 42°17'26.45"N 19°05'34.62"E, 31.vii.2014 Bańkowska, Michoński, Kłósowska (4/2/0); Danilovgrad, limnocrene spring “Modro Oko” near village Braćani, sand, elodeids, 1 m depth, 42°28'53.3"N 19°07'40.4"E, 08.v.2014 Zawal, Bańkowska (0/2/0); Bar, Skadar Lake near Donja Seoca, Raduš, 2 m depth, 42°13'30.72"N 19°09'36.62"E, 23.vii.2015 Bańkowska, Michoński, Kłosowska (1/0/0); ibid., 3 m depth, 42°13'39.65"N 19°09'48.82"E, 23.vii.2015 Bańkowska, Michoński, Kłosowska (1/0/0); ibid., 4 m depth, 42°13'32.5"N 19°09'38.16"E, 23.vii.2015 (1/0/0); Bar, Skadar Lake, Donji Murići, elodeids, 1 m depth, 42°9'48.96"N 19°13'16.18"E, 05.x.2014 Bańkowska, Michoński, Kłosowska (1/0/0). Macedonia: Ohrid Lake near Velidab, sand, rocks, 10 m depth, 40°59'24.7"N 20°47'58.5"E, 24.ii.2011 Zawal, Stojanovski (9/6/0); Ohrid Lake near Struga, 0.5 m depth, 41°10'25.5"N 20°40'34.4"E, 23.vi.2009 Zawal, Stojanovski (1/0/0). Published records: Macedonia: Dzierzgowska et al. (2011). Distribution: Palaearctic., Published as part of Pešić, Vladimir, Bańkowska, Aleksandra, Goldschmidt, Tom, Grabowski, Michał, Michoński, Grzegorz & Zawal, Andrzej, 2018, Supplement to the Checklist of water mites (Acari: Hydrachnidia) from the Balkan peninsula, pp. 151-184 in Zootaxa 4394 (2) on page 172, DOI: 10.11646/zootaxa.4394.2.1, http://zenodo.org/record/1197596

Protzia pachygnatha K. Viets, 1930 Rejected records from the study area: Montenegro: Bańkowska et al. (2016)., Published as part of Pe��i��, Vladimir, Ba��kowska, Aleksandra, Goldschmidt, Tom, Grabowski, Micha��, Micho��ski, Grzegorz & Zawal, Andrzej, 2018, Supplement to the Checklist of water mites (Acari: Hydrachnidia) from the Balkan peninsula, pp. 151-184 in Zootaxa 4394 (2) on page 154, DOI: 10.11646/zootaxa.4394.2.1, http://zenodo.org/record/1197596, {"references":["Bankowska, A., Klosowska, M., Gadawski, P., Michonski, G., Grabowski, M., Pesic, V. & Zawal, A. (2016) Oviposition by selected water mite (Hydrachnidia) species from Lake Skadar and its catchment. Biologia, 71 (9), 1027 - 1033. https: // doi. org / 10.1515 / biolog- 2016 - 0126"]}

Frontipodopsis reticulatifrons Szalay, 1945 New records: Montenegro: Kola��in, Tara River near ��� Raj ��� restaurant, stones, 0.5 m depth, 42��41'07.3��" N 19��31'28.1 ��"E, 16.vi.2017 Pe��ić, Zawal, Pietrzak (0/1/0). Distribution: Central and southeastern Europe., Published as part of Pe��i��, Vladimir, Ba��kowska, Aleksandra, Goldschmidt, Tom, Grabowski, Micha��, Micho��ski, Grzegorz & Zawal, Andrzej, 2018, Supplement to the Checklist of water mites (Acari: Hydrachnidia) from the Balkan peninsula, pp. 151-184 in Zootaxa 4394 (2) on page 179, DOI: 10.11646/zootaxa.4394.2.1, http://zenodo.org/record/1197596

Unionicola (Unionicola) minor (Soar, 1900) New records: Montenegro: Bar, Skadar Lake near Donji Murići, stones, 2.5 m depth, 42°09'47.5"N 19°13'19.7"E, 30.iv.2014 Zawal, Bańkowska (1/0/0), ibid., 23.vii.2014 Bańkowska, Michoński, Kłosowska (2/1/0); ibid., Potamogeton crispus, 1 m depth, 42°09'47.5"N 19°13'19.7"E, 18.vii.2015 (1/1/0), ibid., 05.x.2014 (8/12/8); ibid., Potamogeton lucens, 0.3 m depth, 42°9'48.96"N 19°13'16.18"E, 05.x.2014 (2/1/0); ibid., 3 m depth, 42°11'24.2"N 19°11'46.9"E, 22.vii.2015 (2/5/0); ibid., 6 m depth, 42°12'8.8"N 19°12'34.4"E, 02.x.2014 (1/0/0); ibid., 6 m depth, 42°12'29.9"N 19°13'28.1"E, 02.x.2014 (1/11/0); ibid., Chara sp., 2 m depth, 42°9'47.50"N 19°13'19.70"E, 30.ix.2014 Zawal, Bańkowska (1/2/0); Bar, Skadar Lake near Krnjice, 3 m depth, 42°15'97.27"N 19°6'39.6"E, 06.v.2014 Zawal, Bańkowska (1/0/0); Danilovgrad, limnocrene spring “ Modro Oko ” near village Braćani, sand, elodeids, 1 m depth, 42°28'53.3"N 19°07'40.4"E, 08.v.2014 Zawal, Bańkowska (1/0/0); Bar, Sutomore, stream, moss, 42°18'25.5"N 19°05'14.6"E, 08.x.2014 Zawal, Bańkowska (0/7/0). Albania: Skadar Lake, Taraboš, Schoenoplectus sp., 1.5 m depth., 42°10'37.0"N 19°25'59.2"E, 30.iv.2014 Zawal, Bańkowska (1/0/0). Published records: Montenegro: Bańkowska et al. (2016). Distribution: Europe except Scandinavia (Gerecke et al. 2016)., Published as part of Pešić, Vladimir, Bańkowska, Aleksandra, Goldschmidt, Tom, Grabowski, Michał, Michoński, Grzegorz & Zawal, Andrzej, 2018, Supplement to the Checklist of water mites (Acari: Hydrachnidia) from the Balkan peninsula, pp. 151-184 in Zootaxa 4394 (2) on page 173, DOI: 10.11646/zootaxa.4394.2.1, http://zenodo.org/record/1197596, {"references":["Bankowska, A., Klosowska, M., Gadawski, P., Michonski, G., Grabowski, M., Pesic, V. & Zawal, A. (2016) Oviposition by selected water mite (Hydrachnidia) species from Lake Skadar and its catchment. Biologia, 71 (9), 1027 - 1033. https: // doi. org / 10.1515 / biolog- 2016 - 0126","Gerecke, R., Gledhill, T., Pesic, V. & Smit, H. (2016) Chelicerata: Acari III. In: Gerecke, R. (Ed.), Susswasserfauna von Mitteleuropa. Bd. 7 / 2 - 3, Springer-Verlag Berlin, Heidelberg, pp. 1 - 429. https: // doi. org / 10.1007 / 978 - 3 - 8274 - 2689 - 5"]}

Lebertia (s. str.) sparsicapillata Thor, 1905 New records: Montenegro: Podgorica, Skadar Lake area, Drume, spring near Vitoja River, sand, 0.5 m depth, 42°19'32.5"N 19°21'45.9"E, 27.iv.2014 Zawal, Bańkowska (1/0/2); Kolašin, Tara River near „Raj” restaurant, stones, 0.5 m depth, 42°41'07.3"N 19°31'28.1"E, 16.vi.2017 Pešić, Zawal, Pietrzak (2/1/0). Distribution: Europe except for most northern and eastern parts.

Atractides (Atractides) fonticolus (K. Viets, 1920) New records: Montenegro: Bar, Željeznica River near Sutorman, 42o09'1.3"N 19o07'04.0"E, 29.iv.2014 Zawal, Bańkowska (2/0/0); Bar, Skadar Lake area, Krnjice, limnocrene, rocks, moss, 7 m depth, 42o13'14.5"N 19o12'25.5"E, 06.v.2014 Zawal, Bańkowska (1/0/0). Published records: Montenegro: Bańkowska et al. (2016). Distribution: Western Palaearctic., Published as part of Pešić, Vladimir, Bańkowska, Aleksandra, Goldschmidt, Tom, Grabowski, Michał, Michoński, Grzegorz & Zawal, Andrzej, 2018, Supplement to the Checklist of water mites (Acari: Hydrachnidia) from the Balkan peninsula, pp. 151-184 in Zootaxa 4394 (2) on page 167, DOI: 10.11646/zootaxa.4394.2.1, http://zenodo.org/record/1197596, {"references":["Bankowska, A., Klosowska, M., Gadawski, P., Michonski, G., Grabowski, M., Pesic, V. & Zawal, A. (2016) Oviposition by selected water mite (Hydrachnidia) species from Lake Skadar and its catchment. Biologia, 71 (9), 1027 - 1033. https: // doi. org / 10.1515 / biolog- 2016 - 0126"]}