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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!

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Publication Crosse & Fischer (1893): summary
     publication summary

Complete Citation

Crosse, H. & P. Fischer. 1893. Diagnoses Molluscorum Republicae Mexicanae et Guatemalae incolarum. Journal de Conchyliologie 40: 294-296. Available electronically.

Attributed Nominal Species

Anodonta chapalensis Crosse & Fischer, 1893
Crosse & Fischer, 1893. J. de Conch. 40: 295.
Fischer & Crosse, 1894. Miss. Sci. Mexique, Rech. Zool. 2(15): 518, pl. 64, figs. 8-11.
Type(s): SYNTYPES MNHN-IM-2000-1657, Mexique, Lac de Tchapala.

Unio usumacintae Martens, 1900
Crosse & Fischer, 1893. J. de Conch. 40: 294 [as ‘usumasintæ’].
Martens, 1900. Biol. Centr.-Amer., Moll.: 500 [as ‘usumacintæ’].

Unio usumasintae Crosse & Fischer, 1893
Crosse & Fischer, 1893. J. de Conch. 40: 294 [as ‘usumasintæ’].
Fischer & Crosse, 1894. Miss. Sci. Mexique, Rech. Zool. 2(15): 574, pl. 63, fig. 4; pl. 67, fig. 5 [as ‘usumasintæ’].
Type(s): TYPE LOST XXX_UNKNOWN, in flumine Usumasinta, Provinciæ Peten dictæ, Guatemalæ.

Unio yzabalensis Crosse & Fischer, 1893
Crosse & Fischer, 1893. J. de Conch. 40: 294.
Fischer & Crosse, 1894. Miss. Sci. Mexique, Rech. Zool. 2(16): 597, pl. 64, figs. 4-4b.
Type(s): SYNTYPES MNHN-IM-2000-1810, Lac Yzabal, Guatemala.

 
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