Search

Este artículo contiene 35 páginas, 6 figuras, 5 tablas., The history of colonization and dispersal of fauna among deep-sea chemosynthetic ecosystems remains enigmatic and poorly understood. The distribution of squat lobsters of the genus Munidopsis Whiteaves, 1874 can be influenced by the rich organic matter and associated organism communities of chemosynthetic ecosystems. The present work analyzed the molecular relationships and morphology of individuals from different populations of Munidopsis exuta Macpherson & Segonzac, 2005 and M. geyeri Pequegnat & Pequegnat, 1970 in such ecosystems along the Atlantic Equatorial Belt, including the Chapopote Knoll, in the southern Gulf of Mexico. Munidopsis geyeri is re-described based on the present findings and reference to the literature. This analysis documented the genetic distances, as well as range of variation in the diagnostic characters that support the separation of M. exuta and M. geyeri. Our results confirm that the two species coexist in seep ecosystems and have an amphi-Atlantic distribution., The national and international projects that funded the present research included collaborations between the Re-search Center Ocean Margins (RCOM) of Bremen University, Germany, Study of the process related with fluid seep-age in oceanic ground (E project); the Instituto de Ciencias del Mar y Limnología, UNAM, Mexico, for open access payment; Factores que definen la variabilidad de la diversidad biológica y biomasa en el mar profundo del Golfo de México (PAPIIT), CONACyT 40158F. Molecular analysis was supported by the international collaboration between the University of Louisiana at Lafayette under funding to Darrly L. Felder from U.S. National Science Foundation grants NSF/BS&I DEB-0315995 and NSF/AToL EF-0531603, as well as from Texas A&M University and the Cen-tre d’Estudis Avançats de Blanes (CEAB-CSIC). RR wishes to acknowledge PRODEP-SEP, Mexico, through the program “Apoyo a la Incorporación de NPTC” (Ago/1/2018– Jul/31/2019). Illustrations of Mundiopsis geyeri (Figs 6C, D, E, I, J and N) were produced by Cassandra Robles Flores.

The genus Phylladiorhynchus Baba, 1969 currently contains 11 species, all occurring in the shallow waters and on the continental shelf of the Indian and Pacific oceans. Recent expeditions in these oceans have resulted in the collection of numerous new specimens in need of analysis. We have studied this material using an integrative approach analysing both morphological and molecular (COI and 16S) characters. We describe 41 new species and resurrect three old names: P. integrus (Benedict, 1902) and P. lenzi (Rathbun, 1907), previously synonymized with P. pusillus (Henderson, 1885), and P. serrirostris (Melin, 1939), previously synonymized with P. integrirostris (Dana, 1852). Most species of the genus are described and illustrated. Some species are barely discernible on the basis of morphological characters but are highly divergent genetically. Species of Phylladiorhynchus are mainly distinguishable by the number of epigastric spines and lateral spines of the carapace, the shape and the armature of the rostrum, the number and pattern of the ridges on the carapace and pleon, the shape of thoracic sternite 3 and the armature of the P2–4 dactyli. A dichotomous identification key to all species is provided.

Este artículo contiene 8 páginas, 5 figuras., The French carcinologist and oceanographer Alain Crosnier (1930–2021) had a most influential role in modern carcinology. This tribute reviews his contributions to organising oceanographic expeditions; expanding collections of specimens, particularly from the deep sea; and supporting international collaboration for taxonomic investigations of the rich collections of material obtained from these expeditions. His expertise and enthusiasm also extended to the publication of the results of these investigations.

Este artículo contiene 7 páginas, 2 figuras., Munida vassilyi sp.n. and M. hastata sp.n. are described from Kei Islands, Indonesia. Munida vassilyi sp.n. is morphologically related to M. runcinata, from New Caledonia, Vanuatu, Wallis and Futuna, Fiji and Tonga, whereas M. hastata sp.n. is more similar to M. aurantiaca from Papua – New Guinea. Pairwise genetic distances estimated using the COI and 16S rRNA gene fragments indicated high levels of sequence divergence between each new species and their most closely related allies., The study was partially supported by the GALETTE project (Galatheoidea lobster adaptations to deep sea environments), co-funded by the CNRS (France) and the CSIC (Spain) (2018FR0053).

Squat lobster specimens belonging to the family Munididae were recently collected along the southwestern coast of the mainland of India and in the Andaman Islands. The specimens belong to two known species, Agononida prolixa (Alcock, 1894) and Munida compacta Macpherson, 1997, and a new species, Paramunida bineeshisp. nov. We here redescribe A. prolixa and describe and figure the new species. Munida compacta is newly recorded from India, and we figure the live coloration. In addition, molecular and phylogenetic analyses of two mitochondrial markers (16S rRNA and COI) revealed the phylogenetic relationships of M. compacta and P. bineeshisp. nov. with their most closely related congeners. The genetic similarity among the individuals of M. compacta from different locations is also addressed.

Este artículo contiene 12 páginas, 3 figuras., Examination of numerous specimens of squat lobsters of the genus Eumunida Smith, 1883 collected by French cruises along the coasts of New Caledonia, the Solomon Islands and Papua-New Guinea revealed the presence of six species, including a new species. The collection data of all of these species are recorded. The new species, E. turbulenta n. sp., is described and illustrated from New Caledonia and Chesterfield Islands., The study was partially supported by the projects of the Spanish Ministry of Economy and Competitiveness (CTM2014-57949-R and CTM2013-48163-C2). EM is part of the research group 2014SGR-120 of the Generalitat de Catalunya.

Este artículo contiene 12 páginas, 3 figuras., Hendersonida parvirostris sp. nov. is described from Papua New Guinea. The new species can be distinguished from the only other species of the genus, H. granulata (Henderson, 1885), by the fewer spines on the dorsal carapace surface, the shape of the rostrum and supraocular spines, the antennal peduncles, and the length of the walking legs. Pairwise genetic distances estimated using the 16S rRNA and COI DNA gene fragments indicated high levels of sequence divergence between the new species and H. granulata. Phylogenetic analyses, however, recovered both species as sister species, supporting monophyly of the genus., The study was partially supported by the projects of the Spanish Ministry of Economy and Competitiveness (CTM2014-57949-R and CTM2013-48163-C2). EM is part of the research group 2014SGR-120 of the Generalitat de Catalunya.

Hendersonida parvirostrissp. nov. is described from Papua New Guinea. The new species can be distinguished from the only other species of the genus, H. granulata (Henderson, 1885), by the fewer spines on the dorsal carapace surface, the shape of the rostrum and supraocular spines, the antennal peduncles, and the length of the walking legs. Pairwise genetic distances estimated using the 16S rRNA and COI DNA gene fragments indicated high levels of sequence divergence between the new species and H. granulata. Phylogenetic analyses, however, recovered both species as sister species, supporting monophyly of the genus.

20 páginas, 4 figuras., Squat lobster specimens belonging to the family Munididae were recently collected along the southwestern coast of the mainland of India and in the Andaman Islands. The specimens belong to two known species, Agononida prolixa (Alcock, 1894) and Munida compacta Macpherson, 1997, and a new species, Paramunida bineeshi sp. nov. We here redescribe A. prolixa and describe and figure the new species. Munida compacta is newly recorded from India, and we figure the live coloration. In addition, molecular and phylogenetic analyses of two mitochondrial markers (16S rRNA and COI) revealed the phylogenetic relationships of M. compacta and P. bineeshi sp. nov. with their most closely related congeners. The genetic similarity among the individuals of M. compacta from different locations is also addressed.

Este artículo contiene 6 páginas, 3 figuras, 3 tablas., Patchy landscapes behave differently from continuous ones. Patch size can influence species behaviour, movement, feeding and predation rates, with flow-on consequences for the diversity of species that inhabit these patches. To understand the importance of patchiness on regional species pools, we measured decapod richness and abundance in several seagrass patches with contrasting sizes. Additionally, we evaluated potential drivers of patch-specific species distribution including resource abundance, predator habitat use and the structural complexity of patches. Our results showed a non-random distribution of decapod species: small patches were clear hotspots of diversity and abundance, particularly of larger-bodied epifaunal decapods. Interestingly, these hotspots were characterized by lower nutrient resources, lower canopy height, but also lower predator use. Small fish invertivores such as Coris julis and several species of Symphodus were mostly restricted to large patches. These resident predators may be critical in clumping predation in large patches with consequences for how biodiversity of their prey is distributed across the seascape. Our results highlight the idea that a habitat mosaic with both large and small seagrass patches would potentially bolster biodiversity because preys and predators may seek refuge in patches of different sizes., This research was funded by the Spanish Ministry of Science and Innovation (CTM2017-86695-C3-3-R) and supported J. B. (scholarship BES-2011-043630).

Este artículo contiene 56 páginas, 21 figuras, 2 tablas., The genus Leiogalathea Baba, 1969 currently contains only two benthic species both occurring on the continental shelves and slope: L. laevirostris (Balss, 1913), widely reported in the Indo-Pacific region, and L. agassizii (A. Milne Edwards, 1880), from both sides of the Central Atlantic. A certain degree of morphological variability linked to their geographic distributions was previously noticed, mostly in L. laevirostris. In the present study, we revise numerous specimens collected from the Atlantic, Indian and Pacific Oceans, analysing morphological and molecular characters (COI and 16S rRNA). We found 15 new species; all of them are distinguished from L. laevirostris and L. agassizii by subtle but constant morphological differences and show clear genetic separation. Furthermore, L. imperialis (Miyake & Baba, 1967), previously synonymized with L. laevirostris, was found to be a valid species. All species are described and illustrated. Species of the genus Leiogalathea are morphologically distinguishable on the basis of the spinulation of the carapace, the shape and the armature of the rostrum, the shape of the propodi of the walking legs, and the pattern of the setae covering on rostrum, carapace and chelae. Some species are barely discernible on the basis of these characters but are highly divergent genetically., The study was partially supported by the projects of the Spanish Ministry of Economy and Competitiveness (CTM2014-57949-R and CTM2013-48163-C2).

The genus Coralliogalathea of the family Galatheidae is easily differentiated from other genera in the family by its small size, the presence of three to four small lateral teeth on the rostrum and the lack of the first pair of gonopods in males. The genus currently consists of only a single species, Coralliogalathea humilis, which lives in close association with corals in the Indian and Pacific Oceans. Using material collected across its distribution, we analysed both morphological characters and molecular markers (COI, 16S, 28S and 18S) to investigate cryptic species diversity, phylogenetic relationships within the genus, and the phylogenetic position of Coralliogalathea within the family Galatheidae. Our results support the validity of the two species previously synonymized with C. humilis and three new sympatric species found in Espiritu Santo, Vanuatu. Although these species are distinguishable only by subtle morphological characters, they are highly dissimilar genetically and constitute relatively deep divergent lineages. Furthermore, phylogenetic analyses of Galatheoidea resolved Coralliogalathea as an ancient genus within the superfamily that most probably diversified during the Eocene.

Este artículo contiene 12 páginas, 4 figuras, 1 tabla., The genus Munidopsis is one of the most diverse genera within squat lobsters. Here, three new species of Munidopsis, M. cornuata n. sp., M. senticosa n. sp., and M. turgida n. sp., from, The study and the corresponding author were partially supported by the projects of the Ministry of Economy, Industry and Competitiveness (CTM2014-57949-R, CTM2013-48163- C2). The figures of the carapaces were illustrated by J. Macpherson. EM is part of the research group 2014SGR- 120 of the Generalitat de Catalunya.

The genus Fennerogalathea Baba, 1988 was known to contain two species: F. chacei Baba, 1988, the type species, from the Philippines, Taiwan and Indonesia and F. chirostyloides Tirmizi & Javed, 1993 from the Bay of Bengal. In the present study, three new species of the genus are described and illustrated: F. chani n. sp. from Papua New Guinea, F. cultrata n. sp. from New Caledonia and Vanuatu and F. ensifera n. sp. from Fiji. The new species are morphologically distinguishable on the basis of the shape and spination of the rostrum and the presence/absence of a small spine on the frontal margin of the carapace. The species also show clear genetic differences (COI and 16S rDNA) among them.

12 páginas, 3 figuras., Squat lobsters have a worldwide distribution and are highly visible crustaceans living in a broad range of habitats. In this study, partial sequences of two mitochondrial DNA genes (16S rRNA and COI) and a nuclear gene (H3) were obtained for all but one of the known species of the shallow-water genera Sadayoshia (Munididae) and Lauriea, Macrothea and Triodonthea (Galatheidae). Lauriea siagiani appeared to be phylogenetically closer to Triodonthea and Macrothea than to other Lauriea species, suggesting the need for taxonomic re-evaluation of these taxa. All species of Sadayoshia formed a monophyletic group that would have diverged during the Paleogene (around 50 Mya). Our results support the hypothesis that the late Paleogene–Neogene transition was a period of rapid diversification for shallowwater species of both Galatheidae and Munididae in the Indo-Pacific region. This is probably related to high tectonic activity among the Eurasian, Philippine Sea, Indo-Australian and Pacific plates and corresponding changes in distribution of habitats and ocean currents during the late Paleogene. Finally, the tropical south-west Pacific province is identified as a major diversification centre for shallow-water squat lobsters, from where species dispersed to other Pacific and Indian Ocean regions., FP acknowledges a postdoctoral contract funded by project FP7 Marie Curie IAPP #324475 ‘Colbics’ of the European Union and Beatriu de Pin os contract 2014-BPB-00038. The authors are part of the research groups SGR2014-336, SGR2014-120 and SGR2014-1383 of the Generalitat de Catalunya.

Este artículo contiene 5 páginas, 1 figura.

Este artículo contiene 61 páginas, 3 tablas, 14 figuras., Numerous specimens of squat lobsters belonging to the families Munididae, Munidopsidae and Eumunididae were collected during several cruises along the eastern coasts of Africa. The study of these specimens revealed the presence of 10 new species (one Eumunida Smith, 1883, eight Munida Leach, 1820 and one Munidopsis Whiteaves, 1874). We describe and illustrate these new species, providing some new data on occurrences and colour patterns for previously described taxa. We have also included molecular data from two mitochondrial markers (16S rRNA and COI) to support the taxonomic status of different species. Some deep-sea species show a clear increase in their geographic range distribution. Finally, a key to known species of the genus Munida from the western and central Indian Ocean is also presented., The MAINBAZA cruise, a joint project of MNHN (P. Bouchet principal investigator) and Instituto Español de Oceanografía (A. Ramos principal investigator), and the ATIMO VATAE and MIRIKY cruises formed part of a cluster of Mozambique- Madagascar expeditions (La Planète Revisitée/Our Planet Reviewed) funded by the Total, Prince Albert II of Monaco, and Stavros Niarchos foundations, and conducted by MNHN and Pro-Natura International. The figures of the carapaces were illustrated by J. Macpherson. Molecular data were obtained thanks to the partial support of a Spanish Ministry of Economy and Competitiveness project (ref. CTM 2014- 57949-R). EM is part of the research group 2014SGR-120 of the Generalitat de Catalunya.

The genus Lauriea belongs to the family Galatheidae and is easily differentiated from other genera of the family by the endopod of the uropod being much wider than long and the dactyli of the walking legs being curved and strongly biunguiculate. Examination of many specimens collected during recent expeditions from Madagascar to French Polynesia and using morphological and molecular data revealed the existence of six species, five of them new, that are genetically distinct yet morphologically very similar. Furthermore, another new species, having a triunguiculate P2–4 dactyli, represents a new genus, Triodonthea.

The diversification of Indo-Pacific marine fauna has long captivated the attention of evolutionary biologists. Previous studies have mainly focused on coral reef or shallow water-associated taxa. Here, we present the first attempt to reconstruct the evolutionary history--phylogeny, diversification, and biogeography--of a deep-water lineage. We sequenced the molecular markers 16S, COI, ND1, 18S, and 28S for nearly 80% of the nominal species of the squat lobster genus Paramunida. Analyses of the molecular phylogeny revealed an accelerated diversification in the late Oligocene-Miocene followed by a slowdown in the rate of lineage accumulation over time. A parametric biogeographical reconstruction showed the importance of the southwest Pacific area, specifically the island arc of Fiji, Tonga, Vanuatu, Wallis, and Futuna, for diversification of squat lobsters, probably associated with the global warming, high tectonic activity, and changes in oceanic currents that took place in this region during the Oligocene-Miocene period. These results add strong evidence to the hypothesis that the Neogene was a period of major diversification for marine organisms in both shallow and deep waters.

A new species of Munidopsis Whiteaves, 1874 is reported from the south of Crete, at 2046-2104 m, in the eastern Mediterranean Sea. The species ( M. ariadne ) is morphologically closely related to M. maunga Schnabel and Bruce, 2006, from New Zealand. The species is also close to M. polymorpha Koelbel, 1892, from Lanzarote, Canary Islands, and M. talismani A. Milne Edwards and Bouvier, 1894, from the NW Africa. The new species is described and illustrated and a diagnosis along with full illustration is provided for the latter 2 species.

7 páginas, 2 figuras , 3 tablas, 1 apéndice con 2 tablas., Most fisheries involving spiny lobsters of the genus Palinurus have been overexploited during the last decades, so there is a raising concern about management decisions for these valuable resources. A total of 13 microsatellite DNA loci recently developed in Palinurus elephas were assayed in order to assess genetic diversity levels in every known species of the genus. Microsatellite markers gave amplifications and showed polymorphism in all species, with gene diversity values varying from 0.650 6 0.077 SD (Palinurus barbarae) to 0.792 6 0.051 SD (Palinurus elephas). Most importantly, when depth distribution was taken into account, shallower water species consistently showed larger historical effective population sizes than their deeper-water counterparts. This could explain why deeper-water species are more sensitive to overfishing, and would indicate that overexploitation may have a larger impact on their longterm genetic diversity., This work was supported by a pre-doctoral fellowship awarded by the Autonomous Government of Catalonia to FP (2006FIC-00082). Research was funded by projects CGL2006-13423 and CTM2007-66635 from the Ministerio de Educacio´n y Ciencia. The authors are part of the research group 2009SGR-636, 2009SGR-655 and 2009SGR-1364 of the Generalitat de Catalunya. FP acknowledges an EU-Synthesys grant (GBTAF- 4474).

[Four species of lithodid crabs, Lithodes panamensis Faxon, 1893; L. wiracocha Haig, 1974; Paralomis diomedeae (Faxon, 1893); and P. papillata (Benedict, 1895), were collected during commercial cruises in the eastern Pacific Ocean off Costa Rica. Some remarks on their morphology and illustrations of some species are provided. A key to the species of the genus Lithodes from the eastern Pacific is included. Cuatro especies de cangrejos litodidos, Lithodes panamensis Faxon, 1893; L. wiracocha Haig, 1974; Paralomis diomedeae (Faxon, 1893); y P. papillata (Benedict, 1895), fueron recolectados en campanas comerciales en Costa Rica, Pacifico oriental. Se ilustran varias especies y se incluyen diversos comentarios sobre su morfologia. Se incluye una clave para las especies del genero Lithodes en el Pacifico oriental., Four species of lithodid crabs, Lithodes panamensis Faxon, 1893; L. wiracocha Haig, 1974; Paralomis diomedeae (Faxon, 1893); and P. papillata (Benedict, 1895), were collected during commercial cruises in the eastern Pacific Ocean off Costa Rica. Some remarks on their morphology and illustrations of some species are provided. A key to the species of the genus Lithodes from the eastern Pacific is included. Cuatro especies de cangrejos litodidos, Lithodes panamensis Faxon, 1893; L. wiracocha Haig, 1974; Paralomis diomedeae (Faxon, 1893); y P. papillata (Benedict, 1895), fueron recolectados en campanas comerciales en Costa Rica, Pacifico oriental. Se ilustran varias especies y se incluyen diversos comentarios sobre su morfologia. Se incluye una clave para las especies del genero Lithodes en el Pacifico oriental.]

Macpherson E. 2009. — New species of squat lobsters of the genera Munida and Raymunida (Crustacea, Decapoda, Galatheidae) from Vanuatu and New Caledonia. Zoosystema 31 (3): 431-451.

29 páginas, 11 figuras, 1 tabla., [EN] This adaptation text reproduces Chapter II of the dissertation “Results”: Sistemática e historia evolutiva de la Familia Galatheidae (Crustacea: Anomura) en el Pacífico Sur, of Patricia Cabezas (2010) http://hdl.handle.net/10261/134771, [ES] Este artículo es una adaptación del capítulo II de la tesis doctoral: Sistemática e historia evolutiva de la Familia Galatheidae (Crustacea: Anomura) en el Pacífico Sur, of Patricia Cabezas (2010) http://hdl.handle.net/10261/134771, The family Galatheidae is among the most diverse families of anomuran decapod crustaceans, and the South-West Pacific is a biodiversity hot spot for these squat lobsters. Attempts to clarify the taxonomic and evolutionary relationships of the Galatheidae on the basis of morphological and molecular data have revealed the existence of several cryptic species, differentiated only by subtle morphological characters. Despite these efforts, however, relationships among genera are poorly understood, and the family is in need of a detailed systematic review. In this study, we assess material collected in different surveys conducted in the Solomon Islands, as well as comparative material from the Fiji Islands, by examining both the morphology of the specimens and two mitochondrial markers (cytochrome oxidase subunit I, COI, and 16S rRNA). These two sources of data revealed the existence of eight new species of squat lobster, four of which were ascribed to the genus Munida, two to the genus Paramunida, one to the genus Plesionida, and the last species was ascribed to the genus Agononida. These eight species are described along with phylogenetic relationships at the genus level. Our findings support the taxonomic status of the new species, yet the phylogenetic relationships are not yet fully resolved. Further molecular analysis of a larger data set of species, and more conserved genes, will help clarify the systematics of this group., This study was funded by MEC project CTM2004-01769. PC was supported by a grant from the Consejo Superior de Investigaciones Científicas (CSIC).

The genus Galathea is one of the most speciose and unwieldy groups in the family Galatheidae. The examination of more than 9000 specimens of 144 species collected in the Indian and Pacific Oceans using morphological and molecular characters, has revealed the existence of 92 new species. The specimens examined during this study were obtained by various French expeditions supplemented by other collections from various sources, and including the type specimens of some previously described species. Most of the new species are distinguished by subtle but constant morphological differences, which are in agreement with molecular divergences of the mitochondrial markers COI and/or 16S rRNA. Here, we describe and illustrate the new species and redescribe some previously described species for which earlier accounts are not sufficiently detailed for modern standards. Furthermore we include a dichotomous identification key to all species in the genus from the Indian and Pacific Oceans.

6 páginas, 5 figuras, 1 tabla., The populations of three sympatric hermit crabs, Pagurus excavatus, Anapagurus alboranensis and Anapagurus petiti were studied in a shallow (15^25m) sandy area in the north-western Mediterranean. Seasonal abundance, seasonal size frequency, sex ratio and reproductive periods were examined. Pagurus excavatus was the largest and most abundant species in the zone. Pagarus excavatus and Anapagarus alboranensis are sexually dimorphic in relation to size, with males reaching larger sizes than females. However, the males and females of Anapagurus petiti reach similar large sizes. Anapagurus petiti has a sex ratio that is female biased, whereas A. alboranensis and P. excavatus are 1:1. Anapagurus petiti showed a higher reproductive activity during warmer seasons, while in A. alboranensis the proportion of ovigerous females was high throughout the year, with a minimum in autumn. The activity and clutch size of P. excavatus decreased during summer., This research was funded by the Agencia Catalana de l’Aigua.

20 páginas, 4 figuras., [EN]We studied species of the genus Munida Leach collected during several cruises carried out off the Reunion and Aldabra Islands (western Indian Ocean) and Crozet, Saint Paul and New Amsterdam Islands (southern Indian Ocean). Four new species (M. foresti, M. muscae, M. shaula, and M. spicae) are described and illustrated and the taxonomic position of additional material from the John Murray Expedition is also discussed. A key to the species of the genus Munida from the western and southern Indian Ocean is also included., [FR]Quatre nouvelles espèces du genre Munida Leach (M. foresti, M. muscae, M. shaula et M. spicae) sont décrites et illustrées à partir de spécimens récoltés au large des îles Réunion et Aldabra (océan Indien occidental) et Crozet, Saint Paul et New Amsterdam (océan Indien sud). Quelques spécimens récoltés lors de la campagne John Murray sont aussi étudiés. Une clé pour les espèces du genre Munida de l'océan Indien sud et occidentale est presentée.

18 páginas, 4 figuras., The genus Paramunida belongs to the most diverse family of galatheoids and it is commonly reported from the continental slope across the Indian and Pacific Oceans. Examination of material collected by the NOAA RV Townsend Cromwell Cruise near Christmas (Kiritimati) Island, Kiribati, revealed the existence of a new species of Paramunida (P. haigae), which represents the fourth record of the genus for the Central Pacific. Furthermore, recent efforts to unravel phylogenetic relationships and diversification patterns in Paramunida revealed P. granulata (Henderson, 1885) to be the most basally diverging taxon within the genus. This species is clearly distinguished from other species of Paramunida by the spinulation of the carapace and the length of the distomesial spine of the second antennal peduncle article, which in combination with a high level of genetic divergence suggest that this species represents a separate monotypic lineage. A new genus, Hendersonida gen. n., is proposed to accommodate this species based on morphological and molecular evidence. An updated dichotomous identification key for all species of Paramunida is presented., PC was funded by Research and Collections, Natural History Museum of Los Angeles County.

The rare chirostylid Gastroptychus formosus, until now known only from the eastern Atlantic, is reported for the first time from the western Atlantic, indicating a boreal circum-Atlantic distribution. This record also represents the first occurrence mentioned of any chirostylid in Canadian Pacific or Atlantic waters. The find was at a shallower depth than any previous occurrences for this species. The specimen has been deposited at the Atlantic Reference Centre, Huntsman Marine Science Centre, St. Andrews, New Brunswick, Canada.

19 páginas, [EN]During two cruises to Vanuatu, MUSORSTOM 8 (September–October 1994) and SANTO 2006 (September–October 2006), numerous specimens of deep-sea galatheids belonging to the genus Galathea Fabricius, 1793 were collected. The specimens were caught at stations at depths between 180 and 702 m. These collections contain five new species (G. barbellata n. sp., G. echinata n. sp., G. profunda n. sp., G. raventosae n. sp. and G. sanctae n. sp.), all of which are also found in other collections obtained by French cruises to New Caledonia. Galathea barbellata n. sp., G. echinata n. sp. and G. profunda n. sp. are closely related to G. robusta Baba, 1990, from Madagascar, G. raventosae n. sp. resembles G. consobrina De Man, 1902, from Indonesia, the Philippines, South China Sea and SW Australia, and G. sanctae n. sp. is very close to G. multilineata Balss, 1913, from Japan, East China Sea, Taiwan and the Philippines.[FR]Nouveaux galathéidés d'eaux profondes du genre Galathea Fabricius, 1793 (Decapoda, Galatheidae) originaires du Vanuatu et de Nouvelle-Calédonie. Durant deux expéditions au Vanuatu, MUSORSTOM 8 (septembre–octobre 1994) et SANTO 2006 (septembre–octobre 2006), de nombreux spécimens de galathéidés d'eaux profondes appartenant au genre Galathea Fabricius, 1793 ont été collectés. Les spécimens ont été capturés à des profondeurs comprises entre 180 et 702 m. Ces collections contiennent cinq nouvelles espèces (G. barbellata n. sp., G. echinata n. sp., G. profunda n. sp., G. raventosae n. sp. et G. sanctae n. sp.), qui sont toutes également présentes dans d'autres collections issues d'expéditions françaises en Nouvelle-Calédonie. Galathea barbellata n. sp., G. echinata n. sp. et G. profunda n. sp. sont proches de G. robusta Baba, 1990, de Madagascar, G. raventosae n. sp. ressemble à G. consobrina De Man, 1902, d'Indonésie, des Philippines, de la mer de Chine méridionale et du sud-ouest de l'Australie, et G. sanctae n. sp. est très proche de G. multilineata Balss, 1913, du Japon, de la mer de Chine orientale, de Taiwan et des Philippines.

9 páginas, 4 figuras, 3 tablas., Comparative multispecies studies allow contrasting the effect of past and present oceanographic pro- 30 cesses on phylogeographic patterns. In the present study, a fragment of the COI gene was analyzed in 31 seven decapod crustacean species from five families and with different bathymetric distributions. A total 32 of 769 individuals were sampled along the Atlantic–Mediterranean transition area in order to test the 33 effect of three putative barriers to gene flow: Strait of Gibraltar, Almeria–Oran Front and Ibiza Channel. 34 A significant effect of the Strait of Gibraltar was found in the crabs Liocarcinus depurator and Macropipus 35 tuberculatus. The Ibiza Channel had a significant effect for L. depurator. However, the Almeria–Oran front 36 was not found to have a significant effect on any of the studied species. Higher levels of population struc- 37 ture were found in shallow-water species, although the number of species sampled should be increased 38 to obtain a conclusive pattern. The haplotypes within the different species coalesced at times that could 39 be related with past climatic events occurring before, during and after the last glacial maximum. Given 40 the large diversity of phylogeographic patterns obtained within decapods, it is concluded that both his- 41 torical and contemporary processes (marine current patterns, bathymetry and life-history traits) shape 42 the phylogeographic patterns of these crustaceans., This work was funded by Projects 597 BIOCON08-187 from Fundación BBVA and CTM2010-22218 from 598 the Ministerio de Educación y Ciencia. The authors are part of the 599 Research Group 2009SGR-636, 2009SGR-655 and 2009SGR-1364 600 of the Generalitat de Catalunya. VHGM acknowledges a predoctoral 601 fellowship from Universidad del Quindío (Armenia, Colombia). ARB 602 acknowledges a postdoctoral fellowship from MAE-AECID 2009.

Six species of the nephropid lobster genus Nephropsis Wood-Mason from northern Australia were studied, and new records given for four previously known species. Two new species, N. lwlorhuisi n. sp. and N. serrata n. sp. , are described. These new species are closely allied to N. rosea Bate from the Western Atlantic and N. srewarri WoodMason from Indian Ocean and western Pacific waters, respectively. A key to the species of Nephropsis known from Australian waters is also provided.

The high level classification of the Galatheoidea, popularly known as squat lobsters, has been relatively stable for almost a century. Multiple recent studies of their interrelationships, however, have revealed significant incongruities between the traditional classification and phylogeny. The Aeglidae, Chirostylidae and Kiwaidae were recently removed to other superfamilies. On the basis of previous phylogenetic analyses, we herein revise the higher classification of the remaining Galatheoidea to comprise four families: Galatheidae, Munididae fam. nov., Munidopsidae, and Porcellanidae. The galatheoid families are both morphologically and ecologically distinct. Members of the Munidopsidae are distinguished by the absence or reduction of the maxilliped 1 flagellum and usually occur in outer slope or abyssal habitats. Members of the Munididae fam. nov. are united by the trifid or trispinous anterior margin of the carapace and usually occur at outer shelf or slope depths. The Galatheidae includes primarily shallow water species, united by a broad, triangular rostrum, and is most closely related to the porcelain crabs, Porcellanidae. The families of the Galatheoidea are diagnosed and a diagnostic key provided. Extant and fossil genera are listed for each galatheoid squat lobster family.

60 páginas, 18 figuras, 1 tabla., [EN] This adaptation text reproduces Chapter IV of the dissertation “Results”: Sistemática e historia evolutiva de la Familia Galatheidae (Crustacea: Anomura) en el Pacífico Sur, of Patricia Cabezas (2010) http://hdl.handle.net/10261/134771, [ES] Este artículo es una adaptación del capítulo IV de la tesis doctoral: Sistemática e historia evolutiva de la Familia Galatheidae (Crustacea: Anomura) en el Pacífico Sur, of Patricia Cabezas (2010) http://hdl.handle.net/10261/134771, The genus Paramunida belongs to the family Galatheidae, one of the most species rich families among anomuran decapod crustaceans. In spite of the genus has received substantial taxonomic attention, subtle morphological variations observed in numerous samples suggest the existence of undescribed species. The examination of many specimens collected during recent expeditions and morphological and molecular comparisons with previously described species have revelaled the existence of eleven new lineages. All of them are distinguished by subtle and constant morphological differences, which are in agreement with molecular divergences reported for the mitochondrial markers ND1 and 16S rRNA. Here, we describe and illustrate the new species, providing brief redescriptions for the previously known species, and a dichotomous identification key for all species in the genus., This study was funded by MEC project CTM 2008–00496. Patricia Cabezas was supported by a grant from the Spanish Research Council, the Consejo Superior de Investigaciones Científicas (CSIC).

11 páginas, 7 figuras, 4 tablas., We analyzed the distribution patterns of the galatheid squat lobsters (Crustacea, Decapoda, Galatheidae) of the Pacific Ocean. We used the presence/absence data of 402 species along the continental slope and continental rise (200–2000 m) obtained from 54 cruises carried out in areas around the Philippines, Indonesia, Solomon, Vanuatu, New Caledonia, Fiji, Tonga, Wallis and Futuna and French Polynesia. The total number of stations was ca. 3200. We also used published data from other expeditions carried out in the Pacific waters, and from an exhaustive search of ca. 600 papers on the taxonomy and biogeography of Pacific species. We studied the existence of biogeographic provinces using multivariate analyses, and present data on latitudinal and longitudinal patterns of species richness, rate of endemism and the relationship between body sizes with the size of the geographic ranges. Latitudinal species richness along the Western and Eastern Pacific exhibited an increase from higher latitudes towards the Equator. Longitudinal species richness decreased considerably from the Western to the Central Pacific. Size frequency distribution for body size was strongly shifted toward small sizes and endemic species were significantly smaller than non-endemics. This study concludes that a clear separation exists between the moderately poor galatheid fauna of the Eastern Pacific and the rich Western and Central Pacific faunas. Our results also show that the highest numbers of squat lobsters are found in the Coral Sea (Solomon-Vanuatu-New Caledonia islands) and Indo-Malay-Philippines archipelago (IMPA). The distribution of endemism along the Pacific Ocean indicates that there are several major centres of diversity, e.g. Coral Sea, IMPA, New Zealand and French Polynesia. The high proportion of endemism in these areas suggests that they have evolved independently

13 páginas, 6 figuras., Two new species of squat lobsters are described. Agononida rubrizonata n. sp. from Taiwan, Vanuatu, New Caledonia, Queensland and New South Wales, is distinguished from A. incerta (Henderson, 1888) by the male telson with a strong anterolateral process and different color pattern, although females of the two species are not morphologically separable. In order to establish the taxonomic status of A. incerta originally described from a female holotype, topotypic material is described. Paramunida leptotes n. sp. from the Izu Islands off Honshu, Japan, the Kyushu-Palau Ridge, off Amamioshima of the Ryukyus, and Taiwan is distinguished from P. proxima (Henderson, 1885) by the absence instead of presence of a spine on the posterior ridge of the fourth abdominal somite and much narrower and more elongate third antennal segment that is at least 1.5 times longer than instead of as long as broad and about half instead of two-thirds as broad as the article 2., Our visit to the NTOU was supported by grants from the National Science Council, Taiwan.

220 páginas, 5 figuras, 1 tabla., [EN] This adaptation text reproduces Anexo I of the dissertation “Results”: Sistemática e historia evolutiva de la Familia Galatheidae (Crustacea: Anomura) en el Pacífico Sur, of Patricia Cabezas (2010) http://hdl.handle.net/10261/134771, [ES] Este artículo es una adaptación del Anexo I de la tesis doctoral: Sistemática e historia evolutiva de la Familia Galatheidae (Crustacea: Anomura) en el Pacífico Sur, of Patricia Cabezas (2010) http://hdl.handle.net/10261/134771, Taxonomic and ecological interest in squat lobsters has grown considerably over the last two decades. A checklist of the 870 current valid species of squat lobsters of the world (families Chirostylidae, Galatheidae and Kiwaidae) is presented. The compilation includes the complete taxonomic synonymy and geographical distribution of each species plus type information (type locality, repository and registration number). The numbers of described species in the world’s major ocean basins are summarised.

20 pages, 11 figures, Specimens of the genus Eumunida have been studied from various localities in the Atlantic Ocean. Comparisons of specimens from northwest and southwest Africa with material of E. picta from the western Atlantic Ocean has revealed two new species: E. bella nov. and E. squamifera sp. nov. E. squamifera from the coast of Namibia, South West Africa, is distinguished from the two other atlantic species by a scaley striation of the carapace. The northwest African E. bella and the western Atlantic E. picta , type of the genus, are closely related species, but differ from each other by the number and size of carapace marginal spines, shape of the anterior margin of the third thoracic sternum, and the ridges on the second abdominal segment. Their coloration is also different. One specimen from the Tasman Sea identified by Gordon in 1930 as E. picta represents a further new taxon, E. australis sp. nov. It is readily distinguished from the three Atlantic species by the number of carapace anterio-lateral spines and the long acute projections of the third thoracic sternum. All these species belong to the group A, as defined by Gordon (1930)

Macpherson, Enrique (2006): New species and new occurrence of Galatheoidea (Crustacea, Decapoda) from New Caledonia. Zoosystema 28 (3): 669-681, DOI: http://doi.org/10.5281/zenodo.5393718, {"references":["AHYONG S. T. & POORE G. C. B. 2004a. - The Chirostylidae of southern Australia (Crustacea: Decapoda: Anomura). Zootaxa 436: 3-88.","AHYONG S. T. & POORE G. C. B. 2004b. - Deep-water Galatheidae (Crustacea: Decapoda: Anomura). from southern and eastern Australia. Zootaxa 472: 3-76.","BABA K.2004.- Uroptychodes, new genus of Chirostylidae (Crustacea: Decapoda: Anomura), with description of three new species. Scientia Marina 68: 97-116.","BABA K. 2005. - Deep-sea Chirostylid and Galatheid crustaceans (Decapoda, Anomura) from the Indo- Pacific, with a list of species. Galathea Report 20: 1-317.","BABA K. & SAINT LAURENT M. DE 1996. - Crustacea Decapoda: revision of the genus Bathymunida Balss, 1914, and description of six new related genera (Galatheidae), in CROSNIER A. (ed.), Resultats des campagnes MUSORSTOM, volume 15. Memoires du Museum national d'Histoire naturelle 168: 433-502.","HAIG J. 1979. - A new genus and species of Chirostylidae (Decapoda, Anomura, Galatheidea) from the Hawaiian Islands. Crustaceana, Suppl., 5: 89-94.","MACPHERSON E. 1994. - Crustacea Decapoda: studies on the genus Munida Leach, 1820 (Galatheidae) in New Caledonian and adjacents waters with descriptions of 56 new species, in CROSNIER A. (ed.), Resultats des campagnes MUSORSTOM, volume 12. Memoires du Museum national d'Histoire naturelle 161: 421-569.","MACPHERSON E. 1996. - Crustacea Decapoda: new records of species of the genera Munida Leach, 1820 and Paramunida Baba, 1988 (Galatheidae) from New Caledonia, with the descriptions of three species, in CROSNIER A. (ed.), Resultats des campagnes MUSORSTOM, volume 15. Memoires du Museum national d'Histoire naturelle 168: 423-431.","MACPHERSON E. 2004. - Species of the genus Munida Leach, 1820 and related genera from Fiji and Tonga Islands (Crustacea: Decapoda: Galatheidae), in MAR- SHALL B. & RICHER DE FORGES B. (eds), Tropical Deep-Sea Benthos, volume 23. Memoires du Museum national d'Histoire naturelle 191: 231-292.","MACPHERSON E.& MACHORDOM A.2005. - Description of three sibling new species of the genus Munida Leach, 1820 (Decapoda, Galatheidae) from New Caledonia using morphological and molecular data. Journal of Natural History 39: 819-834.","SAINT LAURENT M.DE & MACPHERSON E. 1990. - Crustacea Decapoda : le genre Eumunida Smith, 1883"]}

60 páginas, 16 figuras, 3 tablas., Twenty-two species of the genus Munidopsis from the Atlantic Ocean are studied. Five new species are described (M. anemia, M. exuta, M. hirtella, M. laurentae and M. truculenta), and diagnoses and illustrations of some relatively rare species (M. acuminata, M. bairdii, M. livida, M. parfaiti and M. thieli) are provided. None of the species discussed here is restricted to a particular habitat, including species collected from hydrothermal vent (M. acutispina, M. exuta) and cold seep areas (M. acutispina, M. geyeri, M. hirtella, M. livida, M. marionis). The new records of some species greatly extend the previously known distribution range of the species (i.e., M. abyssicola, M. aries, M. bairdii, M. geyeri, M. livida, M. parfaiti, M. thieli). Finally, some biological and biogeographical data for the different species are discussed, The BENGAL cruises were organized in the framework of the European project BENGAL, contract n° MAS3-CT95-0018 (DG12-ESCY). The material of the cruises BIOZAÏRE 1 and 2, and ZAIROV were obtained through the framework of the multidisciplinary environmental program BIOZAÏRE realized in partnership between Ifremer and Total Oil Company.

15 páginas, 9 figuras., [EN]A new monotypic family, Kiwaidae n. fam., is proposed for Kiwa hirsuta n. gen., n. sp., new genus and new species collected in hydrothermal vents of the Pacific-Antarctic Ridge, south of Easter Island. The new family belongs to the superfamily Galatheoidea, having similarities with the family Chirostylidae, but with distinctive characters including carapace shape and ornamentation, insertion of fifth pereopod not visible and situated below sternal plastron, sternite between third maxillipeds large and strongly produced anteriorly; eyes strongly reduced, antennal scale absent and chelipeds and walking legs with dense mat of setae. Molecular data (18S rRNA) gene confirm the clear difference between anomuran families, placing the new taxa closer to the families Chirostylidae, Galatheidae and Porcellanidae than to Aeglidae., [FR]Une nouvelle famille de Galatheoidea (Crustacea, Decapoda, Anomura) des sources hydrothermales de la dorsale Pacifique-Antarctique. Une nouvelle famille monotypique, Kiwaidae n. fam., est proposée pour Kiwa hirsuta n. gen., n. sp., récolté sur les sites hydrothermaux de la dorsale Pacifique-Antarctique, au sud de l’Île de Pâques. La nouvelle famille appartient à la superfamille Galatheoidea et présente des similitudes avec la famille des Chirostylidae, mais s’en distingue nettement par la forme et l’ornementation de la carapace, la base des cinquièmes péréiopodes, située sous le plastron sternal, et non visible ventralement, le sternite situé entre les troisièmes maxillipèdes, de grande taille et fortement prolongé antérieurement, les yeux réduits, l’écaille antennaire absente, et la dense couverture de soies. Les données moléculaires (rRNA 18S) confirment la nette différence entre les familles d’anomoures, plaçant le nouveau taxon plus près des Chirostylidae, Galatheidae et Porcellanidae que des Aeglidae., The cruise PAR 5 was funded by grants from the US National Science Foundation to R. C. Vrijenhoek (OCE-0241613) and to C. L. Van Dover (OCE-0350554).

15 páginas, 3 figuras, 2 tablas., Three cryptic species of the genus Munida from New Caledonia, previously identified as M. tuberculata Henderson, 1885, M. notata Macpherson, 1994 and M. clinata Macpherson, 1994, are described and illustrated. The three species are identified by subtle and constant morphological characters, which match clear differences in molecular sequences (16S rDNA and COI genes). The results also confirm the importance of several of these characters (e.g. length of the antennular and antennal spines) in the taxonomy of the genus Munida.

5 páginas, 2 figuras, 1 tabla., Four species of lithodid crabs from waters (240– 2,005 m) in the Crozet and Kerguelen Islands area were studied. One new species, Neolithodes duhameli, is described. Three other species, N. capensis Stebbing, Paralomis anamerae Macpherson and P. birsteini Macpherson are reported for the first time from these localities. The new species, N. duhameli (620–1,500 m), is the fourth representative of the genus in Subantarctic waters and belongs to the group of species possessing a carapace, chelipeds and walking legs covered with numerous spinules or spiniform granules in addition to spines. However, the new species is distinguishable from others in the genus by the long, strong spines on the carapace and pereiopods. The finding of two species of Paralomis clearly extends their geographic ranges in the Southern Ocean: P. anamerae was previously known only in waters of the Falkland Islands and the circumpolar distribution of P. birsteini is supported. The observation of N. capensis also extends its previously described range from South Africa, in the Cape region, to Subantarctic waters. As a result of this study, 14 species of the family Lithodidae are now known from Antarctic and Subantarctic waters; and most can be considered endemic to these waters.

Squat lobsters (genus Munida and related genera) are among the most diverse taxa of western Pacific crustaceans, though several features of their biology and phylogenetic relationships are unknown. This paper reports an extensive phylogenetic analysis based on mitochondrial DNA sequences (cytochrome c oxidase subunit I and 16S rRNA) and the morphology of 72 species of 12 genera of western Pacific squat lobsters. Our phylogenetic reconstruction using molecular data supports the recent taxonomic splitting of the genus Munida into several genera. Excluding one species (M. callista), the monophyly of the genus Munida was supported by Bayesian analysis of the molecular data. Three moderately diverse genera (Onconida, Paramunida, and Raymunida) also appeared monophyletic, both according to morphological and molecular data, always with high support. However, other genera (Crosnierita and Agononida) seem to be para- or polyphyletic. Three new cryptic species were identified in the course of this study. It would appear that the evolution of this group was marked by rapid speciation and stasis, or certain constraints, in its morphological evolution.

Wood and whale bone colonisation experiments were undertaken on the Southwest Indian Ocean Ridge, 18 November 2009. Later, 14 December 2011, squat lobsters were recovered from the submerged wood and assigned to Munidopsis sp. Further study indicated that the specimens belonged to the group of species having a rostrum without lateral spines, presence of two strong epigastric spines, unarmed abdominal segments, one dorsal eye-spine, and with the second pereiopod not reaching the end of the first. They were similar to M. hemingi Alcock & Anderson, 1899 but differed in that the epigastric spines are well developed (vs. tubercles in M. hemingi), the lateral margins of the carapace are straight (vs. more convex in M. hemingi), the eye has a tubercular process mediodorsally (vs. a papilliform spinule at mesial angle) and the epipods on the fourth pereiopod were absent (vs. present in M. hemingi). Consequently the Munidopsis specimens from the Southwest Indian Ocean Ridge were considered to be an undescribed species.

12 páginas, 3 figuras., Shallow water species of galatheid crustaceans collected in Mayotte (Comoros Island), La Réunion and Madagascar have been studied. The collection contains one species of Sadayoshia and seven species of the genus Galathea, including a new species (G. denticulata) closely related to G. amamiensis known from the Indian Ocean and western Pacific waters, a new genus (Macrothea) and species (M. bouchardi). The new genus is closely related to the genus Fennerogalatheaand it is easily distinguished by the following combination of characters: (1) rostrum with 4 strong lateral teeth on each side, (2) spines present on epigastric and hepatic regions only, (3) telson completely subdivided, (4) pereiopods 2–4 dactyli sharply biunguiculate. The new genus is also close to Lauriea Baba, 1971, from which it can be differentiated, among other characters, by the shape of the endopod of uropods and the number of male gonopods., Financial support of Total Foundation and the DAF, Direction de l’Agriculture et de la Forêt.

5 páginas, 2 figuras, Se describe una nueva especie del género Paralomis procedente del norte de Perú. P. phrixa es una especie próxima a P. spinosissima Birstein & Vinogradov, 1972, del Atlántico Sudoccidental, pero se diferencia fácilmente por la longitud de las espinas del caparazón. Se incluye una clave para la identificación de las especies del género Paralomis del Pacífico oriental.

7 páginas, 4 figuras, Palaemon peringueyi (Stebbing, 1915) from Southern African waters is currently synonymized with Palaemon pacificus (Stimpson, 1860) a species reported from the Red Sea to Japan and Polynesia. The comparison of numerous specimens from several localities along the distribution range of the species revealed that P. peringueyi is a different species. The two species are easily distinguished by the length of the rostrum and the shape of the pleura of the fifth abdominal segment. The lectotype of P. pacificus is described