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Wed 1 October 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!

Publication Mörch (1863): summary
     publication summary

Complete Citation

Mörch, O.A.L. 1863. Fortegnelse over de i Danmark forekommende Land-og Ferskvandsblöddyr. Videnskabelige Meddelelser fra den Naturhistoriske Forening i Kjöbenhavn (17-22): 265-367. Available electronically.

Attributed Nominal Species

There are 11 available nominal species attributed to this publication (16 total).
Click here for a complete list.

Taxonomic Opinions

Unio (Mysca) conus Spegl. = Unio nanus
+ Unio cytherea Küster, 1833

Unio (Mysca) conus Spegl. = Unio tumidus

Unio (Mysca) conus compressa = Unio tumidus
+ Unio muelleri Rossmässler, 1838
+ Mya depressa Donovan, 1801

Unio (Mysca) conus var. compressissima = Unio tumidus
+ Unio muelleri Rossmässler, 1838

Unio (Mysca) limosus Nilss. = Unio pictorum
+ Unio pictorum Pfeiffer, 1821
+ Unio longirostris Rossmässler, 1836
+ Mya ovalis Lightfoot, 1786

Unio (Mysca) limosus Nilss. = Unio crassus

Unio (Mysca) limosus pumila = Unio pictorum

Unio (Mysca) limosus maxima = Unio pictorum

Unio (Mysca) pictorum L. = Unio pictorum

Unio (Mysca) pictorum deshayesii Michaud = Unio pictorum
+ Mya ovata Donovan, 1802
+ Unio actephilus Bourguignat, 1862

Unio (Mysca) pictorum deshayesii Michaud = Unio tumidus

Unio (Mysca) pictorum maxima = Unio pictorum
+ Unio pictorum Rossmässler, 1836

Unio (Mysca) pictorum maxima = Unio tumidus

Unio (Mysca) pictorum var. platyrhyncho Rm. = Unio pictorum

Unio (Mysca) tumidus Retz. = Unio tumidus

Unio (Mysca) tumidus limicola = Unio tumidus
+ Unio batavus Rossmässler, 1836
+ Unio ater Nilsson, 1822

Unio (Mysca) tumidus limicola = Unio crassus

Unio (Mysca) tumidus picta (Bk.) = Unio tumidus
+ Unio tumidus Rossmässler, 1836
+ Mya ovata Donovan, 1802