Page last updated
9 August

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The Freshwater Mussels (Unionoida) of the World
(and other less consequential bivalves)

FM(U)otW(aolcb) is the web version of the MUSSEL Project Database. Follow the links to browse the data or use the search fields. Either way, you win!

Taxa known only as fossils are highlighted in gray. Those without representatives in fresh waters are highlighted in gold.




NOTICE! This version of the MUSSELpdb online is no longer supported or up-to-date. It will be removed from this web site in the summer of 2019.

Click here to view these data in the current, updated version. Or, click here to browse from the starting page.

Publication Information

Lea, I. 1856. Description of a new species of Triquetra, Klein (Hyria, Lamarck). Proceedings of the Academy of Natural Sciences of Philadelphia 8: 79.
Availably electronically? yes.

Species Described
Plagiodon isocardiodes Lea, 1856.
Lea, 1856, Proc. Acad. Nat. Sci.: 79.
(incorrect original spelling of Plagiodon isocardioides Lea, 1856)
= Iheringella isocardioides
Triquetra lanceolata Lea, 1856.
Lea, 1856, Proc. Acad. Nat. Sci.: 79.
(renamed Triquetra contorta Lea, 1857)
= Arconaia lanceolata
Taxonomic Opinions
Triquetra lanceolata new species. — Lea (1856: 79).
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