A nomenclator of extant and fossil taxa of the Melanopsidae (Gastropoda, Cerithioidea) Neubauer, Thomas A. ZooKeys 2016 2016-07-05 602 1 358 B715564B-ABC0-57F5-8313-FCD7DECDB03F Drensky, 1947 Drensky 1947 Gastropoda Melanopsidae Bithynia CoL Animalia Bithynia bulgarica Sorbeoconcha 64 65 Mollusca species bulgarica  Original source.  Drensky 1947: 45.  Type locality.  "Poznat za sega samo ot r. Dunav, severno ot gr. Lom"[from the river Danube, near the city of Lom], Bulgaria.  Remarks.  Angelov (2000: 15), while incorrectly treating the name as nomen nudum, considered the species as a junior synonym of  Amphimelania holandri[sic] (Pfeiffer, 1828).