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Abstract:

The adult male and female of Diastylis granulata Zimmer, 1921 are herein described on the basis of specimens collected near its type locality. This species was previously known from a single subadult male collected south of the Río de la Plata mouth (Argentina) during the Swedish Eugenie Expedition (1851-53), and has not been reported again since its original description. An allied species, Diastylis argentata Calman, 1912, is briefly redescribed and its northern limit of distribution extended to Puerto Montt (Chile). These two species can be easily distinguished by the arrangement of their carapace sculptures: D. granulata bears an arched row of teeth that ends on each anterolateral horn, whereas in D. argentata this row of teeth extends backwards without reaching the anterolateral horn. SEM photographs showing the carapace sculpturing of these two species are provided. © 2007 Taylor & Francis.

Registro:

Documento: Artículo
Título:On two allied species of the genus Diastylis from southern South America: D. granulata Zimmer, 1921 and D. argentata Calman, 1912 (Crustacea: Cumacea: Diastylidae)
Autor:Moretti, A.N.; Roccatagliata, D.
Filiación:Departamento de Biodiversidad Y Biología Experimental, Facultad de Ciencias Exactas Y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
Departamento de Biodiversidad Y Biología Experimental, Facultad de Ciencias Exactas Y Naturales, Ciudad Universitaria, C1428EHA, Buenos Aires, Argentina
Palabras clave:Argentina; Chile; Cumacea; Diastylis argentata; Diastylis granulata; crustacean; morphology; new species; taxonomy; Chile; Los Lagos; Puerto Montt; Rio de la Plata; South America; Crustacea; Cumacea; Diastylidae; Diastylis
Año:2007
Volumen:41
Número:41-44
Página de inicio:2621
Página de fin:2639
DOI: http://dx.doi.org/10.1080/00222930701711038
Título revista:Journal of Natural History
Título revista abreviado:J. Nat. Hist.
ISSN:00222933
CODEN:JNAHA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00222933_v41_n41-44_p2621_Moretti

Referencias:

  • Bǎcescu, M., (1992) Cumacea II (Fam. Nannastacidae, Diastylidae, Pseudocumatidae, Gynodiastylidae et Ceratocumatidae), pp. 175-468. , editors. Crustaceorum catalogus. Pars 8. The Hague: SPB Academic Publishing. p
  • Brandt A, Mühlenhardt-Siegel U, Schmidt A. 1999. Density, diversity, and community patterns of selected peracarid taxa (Malacostraca) in the Beagle Channel, South America. In: Schram FR, von Vaupel Klein JC, editors. Crustaceans and the biodiversity crisis. Proceedings of the Fourth International Crustacean Congress; 1998 10-24 July; Amsterdam. I. Leiden: Brill Publishers. p 541-558; Calman, W.T., The Crustacea of the order Cumacea in the collection of the United States National Museum (1876) Proceedings of the United States National Museum, 41, pp. 603-676
  • Day, J., Southern African Cumacea. Part 4. Families Gynodiastylidae and Diastylidae (1980) Annals of the South African Museum, 82 (6), pp. 187-292
  • Garm, A., Revising the definition of the crustacean seta and setal classification systems based on examinations of the mouthpart setae of seven species of decapods (2004) Zoological Journal of the Linnean Society, 142, pp. 233-252
  • Hale HM. 1937. Cumacea and Nebaliacea. Reports of the B.A.N.Z. Antarctic Research Expedition, Series B 4(2):37-56; Ledoyer M. 1977. Cumacés (Crustacea) des Îles Kerguelen recueillis par le N.O. La Japonaise en 1972 et 1974 et par le M.S. Marion-Dufresne en 1974. CNFRA (Comité National Français des Recherches Antarctiques) 42:193-213; Mühlenhardt-Siegel, U., On the biogeography of Cumacea (Crustacea, Malacostraca). A comparison between South America, the Subantarctic Islands and Antarctica: Present state of the art (1999) Scientia Marina, 63 (1), pp. 295-302
  • Sars GO. 1887. Report on the Cumacea. Report on the Scientific Results of the Voyage of H.M.S. Challenger 1873-76. p 1-73; Stebbing, T.R.R., The Sympoda (Part VI of S.A. Crustacea for the Marine Investigations in South Africa) (1912) Annals of the South African Museum, 10, pp. 129-176
  • Stebbing, T.R.R., Cumacea (Sympoda) (1913) Das Tierreich, 39, pp. 1-210
  • Zimmer, C., Einige neue und weniger bekannte Cumaceen des Schwedischen Reichsmuseums. (1921) Arkiv för Zoologi, 13 (21), pp. 1-9

Citas:

---------- APA ----------
Moretti, A.N. & Roccatagliata, D. (2007) . On two allied species of the genus Diastylis from southern South America: D. granulata Zimmer, 1921 and D. argentata Calman, 1912 (Crustacea: Cumacea: Diastylidae). Journal of Natural History, 41(41-44), 2621-2639.
http://dx.doi.org/10.1080/00222930701711038
---------- CHICAGO ----------
Moretti, A.N., Roccatagliata, D. "On two allied species of the genus Diastylis from southern South America: D. granulata Zimmer, 1921 and D. argentata Calman, 1912 (Crustacea: Cumacea: Diastylidae)" . Journal of Natural History 41, no. 41-44 (2007) : 2621-2639.
http://dx.doi.org/10.1080/00222930701711038
---------- MLA ----------
Moretti, A.N., Roccatagliata, D. "On two allied species of the genus Diastylis from southern South America: D. granulata Zimmer, 1921 and D. argentata Calman, 1912 (Crustacea: Cumacea: Diastylidae)" . Journal of Natural History, vol. 41, no. 41-44, 2007, pp. 2621-2639.
http://dx.doi.org/10.1080/00222930701711038
---------- VANCOUVER ----------
Moretti, A.N., Roccatagliata, D. On two allied species of the genus Diastylis from southern South America: D. granulata Zimmer, 1921 and D. argentata Calman, 1912 (Crustacea: Cumacea: Diastylidae). J. Nat. Hist. 2007;41(41-44):2621-2639.
http://dx.doi.org/10.1080/00222930701711038