Bythinella, Moquin-Tandon, 1856

Glöer, Peter & Hirschfelder, Hans-Jürgen, 2019, New Freshwater molluscs from Crete, Greece (Gastropoda: Hydrobiidae, Bythinellidae, Valvatidae), Ecologica Montenegrina 20, pp. 10-23 : 18

Identification key for the Bythinella ssp. from Crete

1 Penis shorter than penial appendix, shell larger than 3 mm .................................................... Bythinella cretensis - Penis as long as the penial appendix, shell smaller than 3 mm ............................................................................. 2

2 Peristome sharp, tubular gland regular broad (constant width) .............................. Bythinella magdalenae n. sp. - Peristome thickened at the columella, tubular gland thicker at the distal end ............... Bythinella sitiensis n. sp.