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Abstract:

Diastylis sexpectinata, a new species of cumacean that extends from São Paulo State (Brazil) to northern Patagonia (Argentina), is herein fully described and illustrated. This species can be easily distinguished from the other members of the genus by the following combination of characters: 1) carapace with a pair of anterolateral horns and six longitudinal rows of conical teeth (middle and uppermost rows poorly developed or absent in the adult male), 2) third and fourth pereiopods of the female without rudimentary exopods, and 3) uropod endopod consisting of two articles, the proximal one in the female with 3-4 teeth on outer margin. The description of the female of Diastylis hammoniae is completed and the adult male described for the first time based on its type material and additional specimens herein reported. The type species of Leptostylis (?) mancoides was also re-examined and its synonymy with Diastylis hammoniae is proposed. The synonymy of D. hammoniae with Diastylis manca is also strongly suspected, but until additional specimens become available D. manca should be treated as "species inquirenda." An identification key to the species of the genus Diastylis from Argentina and Uruguay is given. © The Crustacean Society.

Registro:

Documento: Artículo
Título:On two species of diastylis (Cumacea) from the southwestern atlantic: D. sexpectinata n. sp. and D. hammoniae zimmer, 1902
Autor:Alberico, N.A.; Roccatagliata, D.
Filiación:Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales, C1428EHA, Buenos Aires, Argentina
Palabras clave:Cumacea; Diastylis; South-West Atlantic; taxonomy; Cumacea; Diastylis; Leptostylis; Uropoda
Año:2011
Volumen:31
Número:1
Página de inicio:192
Página de fin:208
DOI: http://dx.doi.org/10.1651/09-3267.1
Título revista:Journal of Crustacean Biology
Título revista abreviado:J. Crustacean Biol.
ISSN:02780372
CODEN:JCBID
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02780372_v31_n1_p192_Alberico

Referencias:

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Citas:

---------- APA ----------
Alberico, N.A. & Roccatagliata, D. (2011) . On two species of diastylis (Cumacea) from the southwestern atlantic: D. sexpectinata n. sp. and D. hammoniae zimmer, 1902. Journal of Crustacean Biology, 31(1), 192-208.
http://dx.doi.org/10.1651/09-3267.1
---------- CHICAGO ----------
Alberico, N.A., Roccatagliata, D. "On two species of diastylis (Cumacea) from the southwestern atlantic: D. sexpectinata n. sp. and D. hammoniae zimmer, 1902" . Journal of Crustacean Biology 31, no. 1 (2011) : 192-208.
http://dx.doi.org/10.1651/09-3267.1
---------- MLA ----------
Alberico, N.A., Roccatagliata, D. "On two species of diastylis (Cumacea) from the southwestern atlantic: D. sexpectinata n. sp. and D. hammoniae zimmer, 1902" . Journal of Crustacean Biology, vol. 31, no. 1, 2011, pp. 192-208.
http://dx.doi.org/10.1651/09-3267.1
---------- VANCOUVER ----------
Alberico, N.A., Roccatagliata, D. On two species of diastylis (Cumacea) from the southwestern atlantic: D. sexpectinata n. sp. and D. hammoniae zimmer, 1902. J. Crustacean Biol. 2011;31(1):192-208.
http://dx.doi.org/10.1651/09-3267.1