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Page last updated
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 Marshall (1926): summary
     publication summary

Complete Citation

Marshall, W.B. 1926. New land and fresh-water mollusks from Central and South America. Proceedings of the United States National Museum 69(2638). 12 pp. Available electronically.

Attributed Nominal Species

Anodontites irisans Marshall, 1926
Marshall, 1926. Proc. U.S. Nat. Mus. 69(2638): 10, pl. 2, fig. 3; pl. 3, fig. 7.
Type(s): HOLOTYPE USNM_359920, Venezuela.

Diplodon asuncionis Marshall, 1926
Marshall, 1926. Proc. U.S. Nat. Mus. 69(2638): 8, pl. 2, fig. 2; pl. 3, fig. 5.
Type(s): HOLOTYPE USNM_361959, Paraguay R., Asuncion, Paraguay.

Diplodon (Cyclomya) smithi Marshall, 1926
Marshall, 1926. Proc. U.S. Nat. Mus. 69(2638): 9, pl. 2, figs. 1, 7; pl. 3, fig. 6.
(homonym of Unio smithii Griffith & Pidgeon, 1833)
Type(s): HOLOTYPE USNM_363027, Tigre R., Tigre, Argentina.

Elliptio divaricatus Marshall, 1926
Marshall, 1926. Proc. U.S. Nat. Mus. 69(2638): 5, pl. 1, figs. 1-2; pl. 3, fig. 3.
Type(s): TYPE USNM_362398, Finca de Providencia, Guatemala.

Hyria wheatleyi Marshall, 1926
Marshall, 1926. Proc. U.S. Nat. Mus. 69(2638): 7, pl. 1, figs. 3, 5; pl. 3, fig. 1.
Type(s): HOLOTYPE USNM_85336, Rio Negro, 1200 m up Amazon, Brazil.

Nephronaias lempensis Marshall, 1926
Marshall, 1926. Proc. U.S. Nat. Mus. 69(2638): 4, pl. 2, figs. 4, 6; pl. 3, fig. 4.
Type(s): HOLOTYPE USNM_361764, Rio Lempe at R.R. Bridge, Salvador.

Tetraplodon linki Marshall, 1926
Marshall, 1926. Proc. U.S. Nat. Mus. 69(2638): 6, pl. 1, figs. 6-7; pl. 3, fig. 2.
Type(s): HOLOTYPE USNM_362860, Sinu R., at Lorica, Dept. Bolivar, U.S. Colombia.

 
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