Publication Morrison (1955): summary

Full Citation

Morrison, J.P.E. 1955. Family relationships in the North American freshwater mussels. American Malacological Union, Inc. Annual Reports 1955(21): 16-17.

Attributed Nominal Genera

Tritigonia Morrison, 1955

Morrison, 1955. Ann. Rept. AMU 1955(21): 16.
(error for Tritogonia Agassiz, 1852)
Type species: Obliquaria (Ellipsaria) verrucosa Rafinesque, 1820 = Quadrula verrucosa