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 | ... | Unionidae | Ambleminae | Quadrulini | Quadrulina | Quadrula verrucosa
nominal species Unio tuberculatus var. supraspeciosus de Gregorio, 1914
Unio tuberculatus var. supraspeciosus de Gregorio, 1914 = Quadrula verrucosa
de Gregorio, 1914. Il Nat. Siciliano 2: 42, pl. 6, figs. 2a-d [as ‘supra speciosus’].
(intro'd as intra-sp. of Unio tuberculatus Barnes, 1823)
Taxonomic Opinions
= Unio tuberculatus var. supra speciosus de Greg. — de Gregorio, 1914
