The dwarf fat-tailed mouse opossum (Thylamys velutinus), also known as the velvety fat-tailed opossum is an opossum species from South America. It is endemic to Brazil, where it is found in cerrado and caatinga habitats. Its head-and-body length is about 141-212 (average 173.3) mm, and its tail length is about 73-85 (average 78) mm.
The dwarf fat-tailed mouse opossum (Thylamys velutinus), also known as the velvety fat-tailed opossum, is an opossum species endemic to Brazil, found in cerrado and caatinga habitats. Its body size is characterized by a head-and-body length of 141-212 mm with an average of 173.3 mm and a tail length of 73-85 mm.