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
Mon 2 March 2026
nominal species Unio transpacifica Arnold & Hannibal in Hannibal, 1912
Unio transpacifica Arnold & Hannibal in Hannibal, 1912 = nomen dubium
Arnold & Hannibal in Hannibal, 1912. Proc. Malac. Soc. London 10(2): 123, pl. 7, fig. 18.
Taxonomic Opinions
= Unio transpacifica Arnold & Hannibal — Henderson, 1935: 93.
= Unio transpacifica Arnold & Hannibal — Hannibal, 1912: 123, pl. 7, fig. 18.
