Bivalvia

nominal species Cyclas calyculata Stein, 1850

Cyclas calyculata Stein, 1850 = nomen dubium

(misidentified reference to Cyclas calyculata Draparnaud, 1806)
Stein, 1850. Schneck. und Muscel. Berlins: 109, pl. 3, fig. 12.

Taxonomic Opinions

+ Calyculina lacustris var. steini A. Schmidt — Clessin, 1877: 495.