Rio Negro tuco-tuco
Encyclopedia
The Rio Negro tuco-tuco (Ctenomys rionegrensis) is a species of rodent
in the family Ctenomyidae. It is found in a small fragmented range in Entre Ríos Province
in northeastern Argentina
and in the Río Negro Department
of western Uruguay
. It is restricted to sand dunes, and is threatened by the conversion of this habitat to forestry plantations.
Rodent
Rodentia is an order of mammals also known as rodents, characterised by two continuously growing incisors in the upper and lower jaws which must be kept short by gnawing....
in the family Ctenomyidae. It is found in a small fragmented range in Entre Ríos Province
Entre Ríos Province
Entre Ríos is a northeastern province of Argentina, located in the Mesopotamia region. It borders the provinces of Buenos Aires , Corrientes and Santa Fe , and Uruguay in the east....
in northeastern Argentina
Argentina
Argentina , officially the Argentine Republic , is the second largest country in South America by land area, after Brazil. It is constituted as a federation of 23 provinces and an autonomous city, Buenos Aires...
and in the Río Negro Department
Río Negro Department
The Río Negro Department is an administrative division of Uruguay located in the west of the country. It has 53,989 inhabitants and an area of 9,282 km² . Its capital is Fray Bentos.-Geography and climate:...
of western Uruguay
Uruguay
Uruguay ,officially the Oriental Republic of Uruguay,sometimes the Eastern Republic of Uruguay; ) is a country in the southeastern part of South America. It is home to some 3.5 million people, of whom 1.8 million live in the capital Montevideo and its metropolitan area...
. It is restricted to sand dunes, and is threatened by the conversion of this habitat to forestry plantations.