Theodoxus jordani (G.B. Sowerby I, 1836). A–C. Syntype of N. meridionalis var. mesopotamica from near Diyarbakır, Turkey (ZMZ 528914); D, E. Specimen (T. mesopotamicus-morphotype) collected in Şanlıurfa, Turkey (UGSB 23426) and used in the phylogeny (Fig. 2); F–H; K–M. Two syntypes of N. cinctella collected at the source of River Chabur near Ras al-Ayn, Syria (ZMB/Moll 21732); I, J. Topotype of N. cinctella from the same locality (UGSB 18762). 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