Some authors (e.g Subba Rao 1989, Nesemann et al. 2007) mention Gabbia as a genus. However, it seems not possible to distinguish the genera of the Bithyniidae by the shape of opercula (Mandahl-Barth 1968) and/or by shell forms, because these characters are found to be variable. On the other hand, the examined material of the family of Bithyniidae can be easily separated by the characteristics of penis morphology (having a penial appendix: Bithynia Leach 1818; or lacking a penial appendix: Pseudobithynia Glöer & Pešić 2006). In our study, we tentatively use the name Gabbia as a subgenus for small Bithynia species with a globular shell, originating from India.