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Uca speciosa
Original Usage
Gelasimus speciosus
Original Source with Priority
Ives, J.E. (1891) Crustacea from the northern coast of Yucatan, the harbor of Vera Cruz, the west coast of Florida and the Bermuda Islands. Proceedings of the Academy of Natural Sciences of Philadelphia 43:176–207.

Locations Where the Name has Been Applied

Number of Uses of Name per Year


The first use of the specific name speciosus with reference to a fiddler crab appears to be Gonoplax speciosus from an unpublished manuscript residing in the library of the National Museum of Natural History in Paris by Christophe-Paulin de La Poix de Fréminville, referring specifically to a “new” species from Senegal. Because the manuscript was never published, the use of this name does not gain priority. The species referenced by Fréminville is today known as Uca tangeri (Eydoux 1835).

The same specific name was later used by Ives to describe a new American species, Gelasimus speciosus. Because the earlier use is a nomen nudum, this second use retains priority and is the proper name for the species Uca speciosa (Ives 1891).

Binomials Using this Specific Name