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Taxonomy

all genera

Unionidae

Margaritiferidae

Hyriidae

Etheriidae

Mycetopodidae

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Species & Genus Richness of
freshwater mussels
by Taxonomy


Species & Genus Richness of
freshwater bivalves
by Family

Geography

Summary

North America

Central America

South America

Afrotropics

North Eurasia

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Species Richness & Endemism of
freshwater mussels
by Geography


Data last updated
Thu 22 January 2026

Bivalvia | Trigoniida | Trigonioidea | Trigoniidae | Neotrigonia howitti

nominal species Trigonia howitti McCoy, 1875

Trigonia howitti McCoy, 1875 = Neotrigonia howitti

McCoy, 1875. Ann. Mag. Nat. Hist. 15: 316, pl. 18B.

= Neotrigonia howitti

Taxonomic Opinions

= Neotrigonia howitti (McCoy, 1875) — Darragh, 1986

= Trigonia howitti McCoy — Tenison-Woods, 1878

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