Mollusc species from the Pontocaspian region - an expert opinion list Author Wesselingh, Frank Naturalis Biodiversity Center, Leiden, Netherlands Author Poorten, Jan Johan ter Field Museum of Natural History, Chicago, United States of America Author Kijashko, Pavel Moscow State University, Moscow, Russia Author Albrecht, Christian Justus Liebig University, Giessen, Germany Author Anistratenko, Olga Yu Schmalhausen Instite of Zoology, National Academy of Sciences of Ukraine, Kiev, Ukraine & Institute of Geological Sciences, National Academy of Sciences of Ukraine, KievUkraine Author Frolov, Pavel Saint-Petersburg State University, Saint Petersburg, Russia Author Gándara, Alberto Martinez Grigore Artipa National Museum of Natural History, Bucharest, Romania Author Gittenberger, Arjan Gittenberger Marine Research, Inventory & Strategy, Leiden, Netherlands Author Gogaladze, Aleksandre Naturalis Biodiversity Center, Leiden, Netherlands Author Mikhail Karpinsky Russian Federal Research Institute of Fisheries and Oceanography, Moscow, Russia Author Popa, Luis Grigore Antirpa National Museum of Natural History, Bucharest, Romania Author Sands, Arthur F Justus Liebig University, Giessen, Germany Author Vandendorpe, Justine Justus Liebig University, Giessen, Germany Author Wilke, Thomas Justus Liebig University Giessen Germany text ZooKeys 2019 827 31 124 http://dx.doi.org/10.3897/zookeys.827.31365 journal article http://dx.doi.org/10.3897/zookeys.827.31365 1313-2970-827-31 10B663895E424E5287D8F49E2405D651 10B663895E424E5287D8F49E2405D651 Turricaspia vinogradovi (Logvinenko & Starobogatov, 1969) *1969 Pyrgula (Oxypyrgula) vinogradovi Logvinenko & Starobogatov: 368, fig. 363(9). ?1971 Pyrgula astrachanica Pirogov: 249-251, fig. 1. ?2006 Turricaspia astrachanica (Pirogov, 1971). - Kantor and Sysoev: 105, pl. 48, fig. B. 2006 Turricaspia vinogradovi (Logvinenko & Starobogatov, 1968). - Kantor and Sysoev: 111, pl. 50, fig. C. 2016 Turricaspia vinogradovi (Logvinenko & Starobogatov, 1968). - Vinarski and Kantor: 251. Status. Pontocaspian species, identity uncertain. Type locality. Northern Caspian Sea. Distribution. Northern Caspian Sea and Volga Delta ( Logvinenko and Starobogatov 1969 ). Taxonomic notes. The species as illustrated by Logvinenko and Starobogatov (1969) is based on a slender shell with highly convex whorls. The same traits are also typical for Pyrgula astrachanica ; in fact, the type of T. vinogradovi could be a juvenile of that species. Moreover, both of them might be synonyms of Turricaspia nossovi Kolesnikov, 1947. Since a part of the type material of the species involved is lacking and some of the taxa are based on incomplete or presumably juvenile specimens, the identities of Pyrgula astrachanica and Turricaspia vinogradovi remain unresolved. Conservation status. Turricaspia vinogradovi has not been assessed by the IUCN, T. astrachanica is marked as "Data Deficient" ( Vinarski 2011q ).