MUSSELp

MUSSELpdb

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Unionidae

Margaritiferidae

Hyriidae

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Mycetopodidae

Iridinidae


Species & Genus Richness by
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North America

Central America

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Species Richness & Endemism by
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Data last updated
Thu 1 January 2026

nominal species Calyculina rykoltii var. danica Clessin in Westerlund, 1873

Calyculina rykoltii var. danica Clessin in Westerlund, 1873

Clessin in Westerlund, 1873. Fauna Moll. Terr. Fluv. Suec. Norv. Dan. (2): 522.
(intro'd as intra-sp. of Cyclas rykoltii Normand, 1844)

=

Taxonomic Opinions

= Calyculina rykoltii var. danica Clessin — Clessin, 1877

 
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