Map showing the locations of Bythinella species in Turkey and the Eastern Aegean Islands: Bythinella anatolica sp. n. (black triangle), B. istanbulensis sp. n. (closed square), B. kazdaghensis (diamond), B. kosensis (asterix), B. magdalenae sp. n. (closed circle), B. occasiuncula (open circle), B. turca (open triangle), B. wilkei sp. n. (open square).