Bythinella undetermined
Creators: name: Anistratenko, V. V.
name: Furyk, Yu. I.
name: Anistratenko, O. Yu.
name: Degtyarenko, E. V.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Littorinimorpha
Bythinellidae
Bythinella
Bythinella undetermined

description: <i>Bythinella</i> sp. Distribution. Spring snails of <i>Bythinella</i> occur throughout continental Europe (e. g. Wilke et al., 2010). Two nominal species of the genus are reported in Ukraine from the Transcarpathian and Ivano-Frankivsk Regions so far: <i>B. austriaca</i> (Frauenfeld, 1857) and <i>B. hungarica</i> Hazay, 1881 (e. g. Zdun, 1960; Anistratenko, Stadnichenko, 1995), however, these identifications need additional confirmation. The data available suggest the distribution of <i>Bythinella</i> in Transcarpathia is strictly limited to a few localities. We recently found individuals of <i>Bythinella</i> with no clear specific determination in small stream flowing into the Synyavka River near Osiy village (Anistratenko et al., 2017: shell image is given in fig. 3, G, H) and later it was recorded also in the stream near Bukove village (fig. 1, localities 19 and 20 correspondingly). R e m a r k s. Identification of spring snails of the genus <i>Bythinella</i> is usually difficult due to lack of conchological characteristics which can serve as the reliable features for species distinguishing. For instance, several species of <i>Bythinella</i> were recently revealed in Ignis Mountains, the region of Rumania adjacent to the Ukrainian Transcarpathia (Falniowski et al., 2009), clearly distinguishing genetically though are very similar to each other in shell morphology. Moreover, the representatives of <i>Bythinella</i> can hardly be distinguished from conchologically similar and somewhere in the Transcarpathian area sympatric occurring species of the genus <i>Terrestribythinella</i> (Anistratenko et al., 2017). No doubts that current taxonomy of these groups and study of their relationhips requires involving of a combination of morphological and genetic evidences. Populations of <i>Bythinella</i> in Transcarpathia occur in the altitude range of 200–400 m a. s. l. (table 2) in the rapid flow cold water with a stone bottom, which is typical for the preferred living conditions of these snails. Together with <i>Bythinella</i> sp. also <i>Terrestribythinella baidashnikovi</i> and some species of pulmonate were sampled in the biotopes (table 1).
description: Published as part of <i>Anistratenko, V. V., Furyk, Yu. I., Anistratenko, O. Yu. &amp; Degtyarenko, E. V., 2019, A Review Of Species Diversity, Distribution And Ecology Of Freshwater Gastropod Molluscs Inhabiting The Ukrainian Transcarpathian, pp. 349-374 in Vestnik Zoologii 53 (5)</i> on pages 360-361, DOI: 10.2478/vzoo-2019-0033, http://zenodo.org/record/6949164
description: {"references": ["Wilke, T., Benke, M., Brandle, M., Albrecht, C., Bichain, J. - M. 2010. The neglected side of the coin: non-adaptive radiations in spring snails (Bythinella spp.). In: Glaubrecht, M., ed. Evolution in action: case studies in adaptive radiation, speciation and the origin of biodiversity. Springer, Dordrecht, 551 - 578.", "Zdun, V. I. 1960. On the fauna of Transcarpathian Mollusca, Naukovi Zapyski Lvivskogo naukovo-pryrodnychogo museyu AN URSR, 8, 83 - 95 [In Ukrainian].", "Anistratenko, V. V., Stadnichenko, A. P. 1995 [1994]. Fauna Ukraine: In 40 vol. Vol. 29: Mollusca. Fasc. 1. Band. 2: Orders Littoriniformes, Rissoiformes. Naukova Dumka, Kiev, 1 - 176 [In Russian].", "Anistratenko, V. V., Furyk, Yu. I., Degtyarenko, E. V., Anistratenko, O. Yu. 2017. New and little-known freshwater Molluscs of Ukrainian Transcarpathian. Ecologica Montenegrina, 13, 70 - 79.", "Falniowski, A., Szarowska, M., Sirbu, I. 2009. Bythinella Moquin-Tandon, 1856 (Gastropoda: Rissooidea: Bythinellidae) in Romania: its morphology with description of four new species, Folia Malacologica, 17 (1), 33 - 48."]}