MUSSELpdb
Taxonomy
Species & Genus Richness of
freshwater mussels
by Taxonomy
Species & Genus Richness of
freshwater bivalves
by Family
Geography
Species Richness & Endemism of
freshwater mussels
by Geography
Data last updated
Wed 04 February 2026
Bivalvia | ... | Unionoidea | Unionidae | Gonideinae | Gonideini | Ptychorhynchus pfisteri
nominal species Unio mediastinus Heude, 1883
Unio mediastinus Heude, 1883 = Ptychorhynchus pfisteri
Heude, 1883. Conch. Fluv. Nanking (8): pl. 63, fig. 123.
Taxonomic Opinions
+ Ptychorhynchus pfisteri (Heude, 1874) — He & Zhuang, 2013
+ Ptychorhynchus pfisteri (Heude, 1874) — Haas, 1969
+ Ptychorhynchus pfisteri (Heude, 1874) — Haas, 1924
= Ptychorhynchus pfisteri var. mediastinum (Heude, 1883) — Simpson, 1914
= Ptychorhynchus mediastinus (Heude, 1883) — Simpson, 1900
= Unio mediastinus Heude — Heude, 1883
