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Thu 17 July 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 Keen (1971): summary
     publication summary

Complete Citation

Keen, A.M. 1971. Sea Shells of Tropical West America: Marine Mollusks from Baja California to Peru. Available electronically.

Taxonomic Opinions

Cyrenoida insula Morrison, 1946

Cyrenoida panamensis Pilsbry & Zetek, 1931

Iphigenia altior (Sowerby, 1833)
+ Iphigenia ambigua Bertin, 1881

Mytella arciformis (Dall, 1909) = Mytella charruana

Mytella guyanensis (Lamarck, 1819)
+ Modiola sinuosa King & Broderip, 1832
+ Modiola brasiliensis var. mutabilis Carpenter, 1857

Mytella speciosa (Reeve, 1857)

Mytella strigatus (Hanley, 1843) = Mytella charruana
+ Mytilus falcatus d’Orbigny, 1846
+ Mytilus charruanus d’Orbigny, 1846

Mytella tumbezensis (Pilsbry & Olsson, 1935)

Mytilopsis adamsi Morrison, 1946

Mytilopsis trautwineana (Tryon, 1866)

Mytilopsis zeteki Hertlein & Hanna, 1949 = Mytilopsis adamsi

Polymesoda (Egeta) altilis (Gould, 1853) = Polymesoda altilis
+ Cyrena fontainei Philippi, 1851
+ Cyrena olivacea Carpenter, 1857

Polymesoda (Egeta) anomala (Deshayes, 1855) = Polymesoda anomala
+ Cyrena (Anomala) isocardioides Deshayes, 1854
+ Cyrena peruviana Deshayes, 1854

Polymesoda (Egeta) inflata (Philippi, 1851) = Polymesoda inflata
+ Cyrena maritima C.B. Adams, 1852
+ Cyrena cordiformis Récluz, 1853
+ Cyrena recluzii Prime, 1865
+ Cyrena (Anomala) angulata Deshayes, 1854
+ Cyrena dura Deshayes, 1854
+ Cyrena (Anomala) inflata Deshayes, 1854
+ Cyrena panamensis Prime, 1860
+ Cyrena tumida Prime, 1865
+ Cyrena cardiformis Sowerby, 1878
+ Polymesoda joseana Morrison, 1946

Polymesoda (Neocyrena) boliviana (Philippi, 1851) = Polymesoda boliviana
+ Cyrena exquisita Prime, 1867
+ Cyrena tribunalis Prime, 1870

Polymesoda (Neocyrena) fontainei (d’Orbigny, 1844) = Polymesoda fontainei
+ Cyrena fortis Prime, 1861
+ Cyrena chilina Prime, 1867

Polymesoda (Neocyrena) meridionalis (Prime, 1865) = Polymesoda meridionalis

Polymesoda (Neocyrena) nicaraguana (Prime, 1869) = Polymesoda solida
+ Cyrena solida Philippi, 1846

Polymesoda (Neocyrena) ordinaria (Prime, 1865) = Polymesoda arctata
+ Cyrena germana Prime, 1867

Polymesoda (s.s.) mexicana (Broderip & Sowerby, 1829) = Polymesoda mexicana
+ Cyrena (Anomala) nitidula Deshayes, 1854
+ Cyrena fragilis Sowerby, 1878

Polymesoda (s.s.) notabilis (Deshayes, 1855) = Polymesoda notabilis
+ Polymesoda (Egetaria) pullastra Mörch, 1861
+ Polymesoda zeteki Pilsbry, 1931