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Kidney-shell, Ptychobrancchus phaseolus; marsupium occupying entire lower border of outer gills and much folded. 1922. Freshwater mussels; Ptychobranchus.

Image of Ptychobranchus Simpson 1900

Description:

Kidney-shell, Ptychobrancchus phaseolus; marsupium occupying entire lower border of outer gills and much folded.

Source Information

license
cc-publicdomain
publisher
Freshwater and Marine Image Bank, University of Washington Libraries Digital Collections
provider
Freshwater and Marine Image Bank