Lectotype Dreissena rostriformis versus D. grimmi. a D. rostriformis Deshayes, 1838. Lectotype. Pliocene, Crimea. Reproduced from Archambault-Guezou (1976, pl. 6, fig 2a-2c) b RGM.961901, D. grimmi (Andrusov, 1890). Caspian Sea offshore Aktau, Kazakhstan, sample KAZ17-21, depth 44.3 m. Scale bar: 1 cm.

 
 
  Part of: Wesselingh FP, Neubauer TA, Anistratenko VV, Vinarski MV, Yanina T, ter Poorten JJ, Kijashko P, Albrecht C, Anistratenko OYu, D’Hont A, Frolov P, Gándara AM, Gittenberger A, Gogaladze A, Karpinsky M, Lattuada M, Popa L, Sands AF, van de Velde S, Vandendorpe J, Wilke T (2019) Mollusc species from the Pontocaspian region – an expert opinion list. ZooKeys 827: 31-124. https://doi.org/10.3897/zookeys.827.31365