Bivalvia

nominal species Sphaerium fragile Clessin, 1877

Sphaerium fragile Clessin, 1877 = nomen dubium

Clessin, 1877. Conch. Cab. 9(3): 95, pl. 11, figs. 18-26.

Taxonomic Opinions

= Sphaerium (Grüppe Corneola) fragile Clessin — Clessin, 1877: 486, fig. 314.