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Artigo
Four new species of spiny rats of the genus Proechimys (Rodentia: Echimyidae) from the western Amazon of Brazil
A total of eight species of spiny rats of the genus Proechimys are included within a collection of mammals assembled during a year-long survey of vertebrates along the Rio Juruâ in the western Amazon Basin of Brazil. Four of these are the well-recognized taxa in western Amazonia, P. simonsi, P. brev...
Autor principal: | Suila, Maria Nazareth F. da |
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Grau: | Artigo |
Idioma: | English |
Publicado em: |
Proceedings of The Biological Society of Washington
2020
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Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/19279 |
Resumo: |
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A total of eight species of spiny rats of the genus Proechimys are included within a collection of mammals assembled during a year-long survey of vertebrates along the Rio Juruâ in the western Amazon Basin of Brazil. Four of these are the well-recognized taxa in western Amazonia, P. simonsi, P. brevicauda, P. cuvieri, and P. steerei, but the remaining four are new (P. echinothrix, P. kulinae, P. pattoni, and P. gardneri). The diagnoses and descriptions of the new taxa are provided herein on the basis of genetic (chromosomes and DNA sequences) and morphological data. The latter include bacular characters, qualitative and quantitative features of the cranium and external morphology. Reswno.-Oito espécies de ratos-de-espinho do gênero Proechimys foram coletadas durante levantamento dos vertebrados terrestres realizado no Rio Jurua, no oeste da amazônia brasileira. Quatre dessas espécies, P. simonsi, P. brevicauda, P. cuvieri, e P. steerei, säo bem conhecidas do oeste da Amazonia, enquanto as demais säo novas (P. echinothrix, P. kulinae, P. pattoni, e P. gardneri). Nesse estudo apresentamos a descricäo e o diagnöstico das espécies novas com base em dados genéticos (cromossomos e sequências de DNA) e morfologicos. Estes incluem o tamanho e a forma do baculum, caractères qualitatives e quantitativos do crânio e da morfologia externa. |