Genus Cordula W. E. Leach, 1852 [W. E. Leach in J. E. Gray, 1852]

(3-4-4-0-9-3-0-20-0-0-0-0-0)
[=Pisidium L. Pfeiffer, 1821]
Ref. Vaught, 1989 p 134
Vokes, 1980 p 164