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Thu 3 September 2025

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 custom Google search field. Either way, you win!

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Publication Alder (1831): summary
     publication summary

Complete Citation

Alder, J. 1831. A catalogue of the land and fresh-water testaceous Mollusca found in the vicinity of Newcastle upon Tyne, with remarks. Trans. Natur. Hist. Soc. Northumbld. Durham 1: 26-41. Available electronically.

Attributed Nominal Genera

Anadon Alder, 1831
Alder, 1831. Trans. Natur. Hist. Soc. Northumbld. Durham 1: 40.
(error for Anodon Oken, 1815)

Pera Leach, 1852
Alder, 1831. Trans. Natur. Hist. Soc. Northumbld. Durham 1: 41 [not used as valid].
Leach, 1852. Syn. Moll. Gr. Brit.: 288, 291.
(intro'd as syn. of Cyclas Lamarck, 1799)

Attributed Nominal Species

Cyclas gibba Alder, 1831
Alder, 1831. Trans. Natur. Hist. Soc. Northumbld. Durham 1: 41.

Taxonomic Opinions

Anadon [sic] anatina Linn. = Anodonta anatina

Cyclas calyculata Drap. = Sphaerium lacustre
+ Tellina lacustris Müller, 1774

Cyclas cornea Linn. = Sphaerium corneum
+ Tellina rivalis Müller, 1774

Cyclas fontinalis Drap. = Euglesa casertana
+ Pera pulchella Leach, 1852
+ Tellina pusilla Gmelin, 1791

Cyclas fontinalis Drap. = Euglesa pulchella

Cyclas gibba = Euglesa obtusalis
+ Pisidium obtusale Brown, 1831

Cyclas lacustris Drap. = Sphaerium nucleus

Cyclas obliqua Lam. = Pisidium amnicum
+ Cyclas palustris Draparnaud, 1806
+ Tellina amnica Müller, 1774

 
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