Woodward, F.R. 1991. Notes on naiad taxonomy (Bivalvia: Unionoida). 2. The genus Prisodontopsis Tomlin, 1928. Journal of Conchology 34: 103-105.

F.R. Woodward, 1991. J. of Conch. 34: 104.
(new name for Unio (Metaptera) johnstoni E.A. Smith, 1893)
Type(s): AUTOMATIC BMNH_1893-8-23-100, Lake Mweru, Central Africa.
+ Unio (Metaptera) johnstoni E.A. Smith, 1893