Two clearly differentiated species of Theodoxus are known to occur in SE. Anatolia, which belong to different subgenera. The related species of this region are described morphologically as well as geographically.

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Nederlandse Malacologische Vereniging

Hartwig Schütt, & Ridvan Şeşen. (1989). Theodoxus in South-eastern Anatolia, Turkey (Gastropoda Prosobranchia, Neritidae). Basteria, 53(1/3), 39–46.