Theodoxus fluviatilis (Linnaeus, 1758). A–D. Specimen (conforming to T. sarmaticus) from the Dnieper-Bug estuary, Ukraine (UGSB 18328); E–H. Specimen (T. subthermalis-morphotype) from Novy Afon, Abkhazia, Georgia (UGSB 18402); I–K. Syntype of N. saulcyi from near the Penteli Monastery, Greece (MHNG-MOLL-111736); L. Specimen (T. saulcyi-morphotype) from Stilos, Crete, Greece (UGSB 20519) incorporated into the phylogeny (Fig. 2). Scale bars: 1 mm.

 
 
  Part of: Sands AF, Glöer P, Gürlek ME, Albrecht C, Neubauer TA (2020) A revision of the extant species of Theodoxus (Gastropoda, Neritidae) in Asia, with the description of three new species. Zoosystematics and Evolution 96(1): 25-66. https://doi.org/10.3897/zse.96.48312