Trapezia formosa Smith, 1869

PETER CASTRO, PETER K. L. NG & SHANE T. AHYONG, 2004, Phylogeny and systematics of the Trapeziidae Miers, 1886 (Crustacea: Brachyura), with the description of a new family, Zootaxa 643, pp. 1-70 : 51

publication ID	https://doi.org/10.5281/zenodo.158851
DOI	https://doi.org/10.5281/zenodo.5675062
persistent identifier	https://treatment.plazi.org/id/162E87D3-836F-1F48-FA7D-FD24FB7EFB33
treatment provided by	Plazi (2016-06-19 12:34:24, last updated 2024-11-28 19:36:47)
scientific name	Trapezia formosa Smith, 1869
status

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Trapezia formosa Smith, 1869 View in CoL

Trapezia cymodoce var. edentula Laurie, 1915: 461 View in CoL .

Remarks. The taxonomic status of this species was reviewed by Castro (1998). Trapezia cymodoce var. edentula Laurie, 1915 was described for specimens of T. cymodoce in which “… the lateral epibranchial tooth was absent and the hand naked.” It was presumed to be identical to T. bidentata (as T. ferruginea ) by Castro (1999b: 108). Both characters are indeed shared by T. bidentata and T. formosa . In T. formosa , however, the anterolateral teeth become barely noticeable or absent in much smaller individuals and the chelipeds are thicker and shorter than in T. bidentata . The two syntypes of T. cymodoce var. edentula (BMNH 1907.5.22.263–264) from Galle, Ceylon (= Sri Lanka) were examined and proved to be identical to T. formosa . The male syntype (cl 5.1 mm, cw 4.2 mm) is here designated the lectotype; the female syntype (cl 5.6 mm, cw 7.6 mm) becomes the paralectotype.

References

Castro, P. (1998) Systematic status and geographic distribution of Trapezia formosa Smith, 1869 (Crustacea, Brachyura, Trapeziidae), a symbiont of reef corals. Zoosystema, 20 (2), 177 - 181.

Castro, P. (1999 b) Trapeziid crabs (Crustacea, Brachyura, Trapeziidae) of the Indian Ocean and the Red Sea. Zoosystema, 21 (1), 93 - 120.

Laurie, R. D. (1915) On the Brachyura. Reports on the marine biology of the Sudanese Red Sea, from collections made by Cyril Crossland, M. A., B. Sc., F. Z. S., XXI. Journal of the Linnean Society of London, Zoology, 31 (209), 407 - 475, pls. 42 - 45.

Smith, S. I. (1869) Notes on new or little known species of American cancroid Crustacea. Proceedings of the Boston Society of Natural History, 12, 274 - 289.