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In order to characterize the soil-vegetation relationship in Kabylia, a qualitative inventory of plant species was carried out in the stations of Sidi Ali Bounab, Redjaouna and Mizrana (Tizi-Ouzou) during the spring season 2022 as well as physico-chemical analyzes of the soil (texture, total limestone CaCO3, pH, electrical conductivity as well as organic matter). The inventory of the flora collected made it possible to draw up a systematic list of 54 species, of which 26 species are listed at the level of the Redjaouna station, which is the more diversified, 23 species at the station of Sidi Ali Bounab and only 15 species at the station of Mizrana. The latter belong to 25 botanical families, 22 orders, 4 classes (Liliopsida, Equidopsida, Magnoliopsida and Flicopsida), and 5 divisions of the kingdom Planteae. The Fabaceae family dominates in the Redjaouna and Sidi Ali Bounab stations, so much said that at the Mizrana station it is the Asteraceae family that dominates. The analysis of the quality of the soils by determining their physical and chemical properties reveals that it is favorable to the installation and the diversification of the flora thanks to their loamy-sandy texture rich in organic matter and their neutral pH as well as their electrical conductivity, which is confirmed by the ecological analysis (equitability which tends towards 1) as well as statistical analysis by ACP and CAH. [ABSTRACT FROM AUTHOR]

Pseudamnicola thawintae sp. n. (Gastropoda, Hydrobiidae) is described from Ait-Bouaddou, Tizi-Ouzou (Algeria) by the shells and the anatomy. In addition, photos of the shell and the penis morphology are given and photos of the type locality. [ABSTRACT FROM AUTHOR]

In this paper some helicoid species from eastern Algeria are investigated using a morphological and molecular approach. The investigation of the genital organs of M. massylaea (Morelet, 1851), the type species of the genus Massylaea Möllendorff, 1898, showed the same autapomorphic character states as are considered typical for Eobania P. Hesse, 1913. These findings are fully supported by the genetic analysis using two mitochondrial and three nuclear markers. Thus, the latter genus has to be considered a synonym of the former. Currently, three species are known to comprise the genus, viz. M. massylaea, M. constantina (E. Forbes, 1838), and M. vermiculata (O. F. Müller, 1774). Several nominal taxa from northern Africa are synonymised with one of the species mentioned here under Massylaea. The generic position of the so-called "Massylaea" species from the High Atlas Mountains in southern Morocco remains unresolved. [ABSTRACT FROM AUTHOR]

A preliminary morphometric study of the Algerian mouse, Mus spretus in Algeria based on populations collected in the Kabylie of Djurdjura revealed an unexpected strong differentiation when compared with samples from Morocco, Tunisia, Spain, and France. Skull, mandible, and teeth have been measured on an original sample of Algerian animals and on foreign specimens from private collections. A first principal component analysis revealed a noticeable morphometric differentiation within populations of Kabylie of Djurdjura based on several variables including palatal breadth, palatal foramina length, and first lower molar breadth. At the scale of the species range the results of a second principal component analysis were even more distinctive with two clearly separated groups, mice from Algeria vs. mice from all other parts of the range. Mice from Algeria are characterized by a finer nose, a broader palate, and smaller teeth. The evolutionary history of this species cannot explain such a differentiation which is more likely a local adaptation. [ABSTRACT FROM AUTHOR]