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
Mon 1 Dec 2025

Bivalvia | ... | Unionoidea | Unionidae | Gonideinae | Contradentini | Lens contradens

nominal species Unio pajakomboensis Bullen, 1906

Unio pajakomboensis Bullen, 1906 = Lens contradens

Bullen, 1906. Proc. Malac. Soc. London 7: 15, pl. 2, figs. 9-11.
Type(s): HOLOTYPE BMNH_1906-1-16-52, Pajakombo, Sumatra.

= Lens contradens

Taxonomic Opinions

+ Lens contradens (Lea, 1838), comb. nov. — Pfeiffer et al., 2021

+ Uniandra contradens dimotus (Lea, 1870) — Brandt, 1974

+ Contradens hageni (Strubell, 1897) — Haas, 1969

= Unio pajakomboensis Bullen, 1906 — Simpson, 1914

= Schizocleithrum pajacomboënse [sic] (Bullen, 1906) — Haas, 1914

= Unio pajakomboensis n. sp. — Bullen, 1906