Sitnikova T. Ya., Prozorova L. A.
Bulletin of the Russian Far East Malacological Society 2025; 28(2): 246-278
We present the biographic details for G. von Gerstfeldt, a Russian zoologist, researcher, and traveler who revealed and described the new gastropod taxa of the Lake Baikal and the Amur River basins. We provide the main synonymy, diagnoses, shell images, updated information on distribution, karyotypes, and nucleotide sequences data for the genus Choanomphalus Gesrtfeldt, 1850 (Planorbidae) described by Gerstfeldt and 9 species of 8 families (Baicaliidae, Benedictiidae, Bithyniidae, Viviparidae, Semisulcospiridae, Valvatidae, Planorbidae, Acroloxidae). The taxa named in Gerstfeldt’s honor are listed.