The short-tailed spiny-rat or Huallaga spiny rat, is a spiny rat species found in Bolivia, Brazil, Colombia, Ecuador and Peru.
The Guyenne spiny-rat or Cayenne spiny rat, is a spiny rat species found in Brazil, Colombia, French Guiana, Guyana, Suriname and Venezuela.
Cuvier's spiny-rat is a spiny rat species found in Brazil, French Guiana, Guyana, Peru and Suriname.
The stiff-spine spiny-rat or Tefe spiny rat, is a spiny rat species found in Brazil and Colombia.
Gardner's spiny-rat is a spiny rat species found in Bolivia and Brazil.
Goeldi's spiny-rat is a spiny rat species found in Brazil.
The Kulina spiny-rat or Javari spiny rat, is a spiny rat species found in Brazil and Peru.
The mouse-tailed Atlantic spiny-rat is a spiny rat species from South America. It is found in Brazil.
Patton's spiny-rat is a spiny rat species found in Brazil and Peru.
The white-spined Atlantic spiny rat is a spiny rat species endemic to Brazil.
The soft-spined Atlantic spiny-rat is a spiny rat species from South America. It is endemic to Brazil.
Elias's Atlantic spiny-rat or the Rio de Janeiro spiny rat, is a spiny rat species from South America. It is found in Brazil.
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.
Ihering's Atlantic spiny-rat or Ihering's spiny rat is a spiny rat species from South America. It is endemic to Brazil, and was named in honor of Hermann von Ihering.
Moojen's Atlantic spiny-rat, is a spiny rat species from South America. It is found in Brazil. It is named after twentieth-century Brazilian zoologist João Moojen.
The spiked Atlantic spiny-rat or Espirito Santo spiny rat, is a spiny rat species from South America. It is found in Brazil.
The hairy Atlantic spiny rat is a spiny rat species from South America. It is endemic to Brazil.
Yonenaga's Atlantic spiny-rat or torch-tail spiny rat is a spiny rat species endemic to Brazil. Locally, it is known as rabo de facho. Named for Yatiyo Yonenaga-Yassuda, a cytogenetics researcher, it is considered an endangered species due to its highly restricted distribution and ongoing habitat loss. Genetic evidence shows that it diverged from its closest living relative, the hairy Atlantic spiny rat, around 8.5 million years ago, during the Late Miocene.
The Atlantic spiny rats are all found in the genus Trinomys. They are a group of South American spiny-rats in the family Echimyidae.
