Publication R.I. Johnson (1977): summary

Full Citation

Johnson, R.I. 1977. Monograph of the genus Medionidus (Bivalvia: Unionidae) mostly from the Apalachicolan region, southeastern United States. Occasional Papers on Mollusks 4(56): 161-187. Available electronically.

Taxonomic Opinions

Medionidus acutissimus (Lea, 1831) = Medionidus acutissimus + Medionidus parvulus

+ Unio rubellinus Lea, 1857

+ Unio parvulus Lea, 1860

+ Unio semiplicatus Küster, 1862

Medionidus conradicus (Lea, 1834)

+ Obliquaria plateolus Rafinesque, 1831

Medionidus mcglameriae van der Schalie, 1939 = Potamilus fragilis

Medionidus penicillatus (Lea, 1857)

+ Unio kingii B.H. Wright, 1900

Medionidus simpsonianus Walker, 1905

Medionidus walkeri (Wright, S.H., 1897)