Gracile Atlantic Spiny-rat

Trinomys gratiosus is a species in the mainly South American family Echimyidae, the spiny rats; it occurs in southeast Brazil from the south bank of the River Doce, Espirito Sante, southward to Teresopolis, Rio de Janeiro. Taxonomy Recently published studies suggest that the taxonomy of the genus Trinomys as currently described is not yet stable and that the genus might well be split. Some evidence suggests that the lineage of the South American spiny rats is older than might have been expected and in spite of morphological resemblance, the populations have diverged widely.

Trinomys gratiosus est une espèce de mammifères rongeurs de la famille des Echimyidae qui regroupe des rats épineux originaires d'Amérique latine. Liste des sous-espèces Selon Mammal Species of the World (version 3, 2005) (7 oct. 2012) et NCBI (7 oct.

Trinomys gratiosus es una especie de roedor de la familia Echimyidae. Distribución geográfica Se encuentra en Sudamérica: Brasil. Referencias Infonatura Archivado el 24 de junio de 2009 en Wayback Machine.