Abstract
Morphological characters used for separating Nectomys parvipes Petter, 1979 from N. squamipes melanius Thomas, 1910 are the same used for separating Nectomys from the smaller taxon Sigmodontomys J.A. Allen, 1897. Principal Component analyses grouped N. parvipes holotype with S. alfari specimens and apart from N. s. melanius specimens. Both morphology and morphometry indicated that N. parvipes belongs to the genus Sigmodontomys.
Rodentia; Sigmodontinae; Nectomys; Sigmodontomys parvipes; taxonomy
SCIENTIFIC COMMUNICATION
New taxonomic status to the French Guianan Nectomys parvipes Petter (Rodentia, Sigmodontinae)
Cibele R. Bonvicino
Serviço de Genética, Pesquisa Básica, Instituto Nacional de Câncer. Praça da Cruz Vermelha 23, 20230-130 Rio de Janeiro, Rio de Janeiro, Brasil
ABSTRACT
Morphological characters used for separating Nectomys parvipes Petter, 1979 from N. squamipes melanius Thomas, 1910 are the same used for separating Nectomys from the smaller taxon Sigmodontomys J.A. Allen, 1897. Principal Component analyses grouped N. parvipes holotype with S. alfari specimens and apart from N. s. melanius specimens. Both morphology and morphometry indicated that N. parvipes belongs to the genus Sigmodontomys.
Key words: Rodentia, Sigmodontinae, Nectomys, Sigmodontomys parvipes, taxonomy.
Full text available only in PDF format.
Texto completo disponível apenas em PDF.
ACKNOWLEDGMENTS. I am grateful to P. Hershkovitz and H. Seuánez for reviewing previous version of the manuscript and for valuable suggestions to R. Cerqueira for laboratories facilities and to B. Lemos for help in morphometric analyses. I am grateful from the following persons for allowing to study specimens: L. Flamarion (Museu Nacional, Rio de Janeiro), A. Langguth (Universidade Federal da Paraíba, João Pessoa), J. Marinho (Universidade de Brasília), M. Mattevi (Universidade Federal do Rio Grande do Sul, Porto Alegre), S. Marques (Museu Paraense Emílio Goeldi, Belém), P. Hershkovitz (Field Museum of Natural History, Chicago), G. Musser (Americam Museum of Natural History, New York), and M. Carleton (United States National Museum, Washington). Work supported by CNPq, Barbara Brown Foundation, Smithsonian Institution, INCa.
Recebido em 04.VI.1998; aceito em 16.XI.1999.
- Allen, J.A. 1897. Additional Notes on Costa Rica Mammals, with descriptions of new species. Bull. Amer. Mus. Nat. Hist. 9. 31-44.
- Gardner, A.L. & J.L. Patton. 1976. Karyotype variation in oryzomyine rodents (Cricetinae) with comments on chromosomal evolution in the neotropical cricetine complex. Occ. Pap. Mus. Zool. 49: 1-48.
- Gyldenstolpe, N.C.G. 1932. A manual of Neotropical rodent sigmodont rodents. Kungl. Svenka Vetenskapsakad. Handl., ser. 3, 11 (3): 1-164.
- Hershkovitz, P. 1944. A Systematic review of the Neotropical water rats of the genus Nectomys (Cricetinae). Misc. Publ. Mus. Zool. Univ. Michigan 58: 1-101.
- Musser, G. & M.D. Carleton. 1993. Family Muridae, p. 501-755. In: D.E. Wilson & D.M. Reeder (Eds). Mammal Species of the World. Cidade, Smithsonian Institution Press, 2nd ed., 1209p.
- Nowak, R.M. & J.L. Paradiso. 1983. Walker's mammals of the world. Baltimore, Johns Hopkins University Press, 4th ed., Vol. 2, p. 569-1362.
- Petter, F. 1979. Une nouvelle espèce de rat d'eau de Guyane française, Nectomys parvipes sp. nov. (Rongeurs, Cricetidae). Mammalia 43: 507-510.
Publication Dates
-
Publication in this collection
04 June 2009 -
Date of issue
1999
History
-
Received
04 June 1998 -
Accepted
16 Nov 1999
