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 Ecrobia ventrosa (Montagu, 1803) *1803 Turbo ventrosus Montagu: 317, pl. 12, fig. 13. 2012 Ecrobia ventrosa (Montagu, 1803). - Kadolsky: 69-70. 2012 Hydrobia ventrosa (Montagu, 1803). - Welter-Schultes: 40, unnumbered text figures. Status. Accepted, immigrant species. Type locality. On the Kent coast (United Kingdom), at Folkstone and Sandwich. Distribution. Widespread along the coastal zones of northern and western Europe, the Mediterranean Sea, the Russia White Sea; introduced into the western Black Sea. Taxonomic notes. Unpublished genetic data (TW) suggest that most previous records of E. ventrosa in the Black Sea are likely misidentifications of E. grimmi . A notable exception is a recent, genetically confirmed record from Constanța , Romania ( Osikowski et al. 2016 ). Probably, the French species Paludestrina arenarum Bourguignat, 1876, P. leneumicra Bourguignat, 1876, P. paludinelliformis Bourguignat, 1876, and Ventrosia cissana Radoman, 1977, which have been listed for the Black Sea Basin ( Anistratenko 1991 , Anistratenko and Prisyazhniuk 1992 , Anistratenko et al. 2011 ), are junior synonyms or misidentifications of this species. Conservation status. Least Concern ( Van Damme 2011a ).