MUSSELpdb

Introduction

Browse

d'basing

Taxonomy

all genera

Unionidae

Margaritiferidae

Hyriidae

Etheriidae

Mycetopodidae

Iridinidae

Species & Genus Richness by
Taxonomy

Geography

Summary

North America

Central America

South America

Afrotropics

North Eurasia

East Asia

Australasia

Species Richness & Endemism by
Geography

Data last updated
Thu 18 Dec 2025

Bivalvia | ... | Hyrioidea | Hyriidae | Hyriinae | Castaliini | Castalia ambigua

Specimen FMNH_216448: Images

Castalia ambigua Lamarck, 1819, Rio Samiria, N. trib of the Amazon River, between Rio Huallaga and Ucayali, 140 m. alt., Peru