Haig's tuco-tuco, known regionally as the Patagonian tuco-tuco, is a hystricognath rodent. Like other tuco-tucos it is subterranean and thus not often observed, although the "tuc-tuc" call of the males can be heard near burrow sites, especially in the early morning. Like most species in the genus Ctenomys, C. haigi are solitary, with one adult per burrow.
Akodon budini, also known as Budin's akodont or Budin's grass mouse, is a species of rodent in the family Cricetidae. It is found in the Andes of northwestern Argentina and adjacent Bolivia. The species is named after Emilio Budin, an Argentine specimen collector who worked with Oldfield Thomas.
Emily's tuco-tuco, also called Emilio's tuco-tuco, is a species of rodent in the family Ctenomyidae. It is endemic to Argentina. This species was named after Emilio Budin, an Argentine specimen collector who worked with Oldfield Thomas.
The reddish tuco-tuco is a species of rodent in the family Ctenomyidae. Five subspecies have been recognized, some formerly designated as separate species. It is found in Argentina and Bolivia at altitudes from 600 to 4,500 m. This tuco-tuco is fossorial, like others in its genus. Its diet consists of underground tubers and roots. Its karyotype has 2n = 52 and FN = 78.
The Mendoza tuco-tuco is a species of rodent in the family Ctenomyidae.
The Goya tuco-tuco is a species of rodent in the family Ctenomyidae. It is endemic to Argentina.
Steinbach's tuco-tuco is a species of rodent in the family Ctenomyidae. It is endemic to Bolivia. The species is named after zoological collector Dr. José Steinbach (1856–1929).
Budin's chinchilla rat is a species of chinchilla rat in the family Abrocomidae. Found only in Argentina, the categorization of this species was based on analysis of four specimens which were caught among the rocks in the clefts of which it lived. It is specifically known from Otro Cerro, Catamarca Province and known to occur in rocky areas over 3,000 meters above sea level; research shows it may be confined to Sierra de Ambato in Catamarca Province and La Rioja Province. In 2002, Braun and Mares from the University of Oklahoma examined this specimen and confirmed it to be a separate species. Not enough is known about this species for the IUCN to assess its conservation status.
Berg's tuco-tuco is a species of rodent in the family Ctenomyidae, named after the Latvian-Argentine biologist Frederico Guillermo Carlos Berg. It is endemic to northwestern Córdoba Province in central Argentina. Its habitat is grassy areas overlying sand dunes. The species is threatened by the degradation and severe fragmentation of its small habitat.
The Puntilla tuco-tuco is a species of rodent in the family Ctenomyidae. It is endemic to central Argentina. The common name of the species comes from the municipality of La Puntilla at the type locality. It was first described by the British zoologist Oldfield Thomas in 1920 after being collected by Emilio Budin, an Argentine specimen collector who worked with Oldfield Thomas.
D'Orbigny's tuco-tuco is a species of rodent in the family Ctenomyidae, named after French naturalist Alcide d'Orbigny. It is found in northeast Argentina. Its karyotype has 2n = 70, FN = 84–88, which is cytogenetically indistinguishable from some populations of C. pearsoni; the latter taxon may actually represent several species.
Foch's tuco-tuco is a species of rodent in the family Ctenomyidae. It is endemic to northwestern Argentina, where it is known from southwestern Catamarca Province. The species is named after World War I general Ferdinand Foch.
Flamarion's tuco-tuco or the tuco-tuco of the dunes is a rodent species of the family Ctenomyidae Its karyotype has 2n = 48 and FN = 50–78. It is endemic to the coastal dunes of Rio Grande do Sul state, southern Brazil. The species is threatened by habitat loss due to dune removal and urbanization. It is named after Brazilian biologist Luiz Flamarion B. de Oliveira.
Goodfellow's tuco-tuco is a species of rodent in the family Ctenomyidae. It is endemic to Bolivia, where it is found in the Chiquitano dry forest ecoregion, bordering on the cerrado. Its karyotype has 2n = 46 and FN = 68. The species is named after British collector Walter Goodfellow.
Reig's tuco-tuco is a species of rodent in the family Ctenomyidae. It is endemic to central Argentina, where it is known only from a grassland location in Cordoba Province at an elevation above 2000 m in the Sierras Grandes. The species is threatened by disruption of its habitat by fire and sheep grazing. It is named after Argentine biologist Osvaldo Reig (1929–1992).
Pundt's tuco-tuco is a species of rodent in the family Ctenomyidae. It is endemic to the Pampas of southern Córdoba and San Luis Provinces in central Argentina. The species is named after Argentine landowner and collector Moritz Pundt. It has a fragmented population and is threatened by conversion of its habitat to agricultural use.
Roig's tuco-tuco is a species of rodent in the family Ctenomyidae. It is endemic to a small region near the Paraná River in Corrientes Province, northeastern Argentina, where lives on sand dunes, and near rivers. Development is degrading and shrinking this habitat, threatening the rodent's survival. The species is named after Argentine zoologist Virgilio G. Roig. Its karyotype has 2n = 48 and FN = 80.
Scaglia's tuco-tuco is a species of rodent in the family Ctenomyidae. It is endemic to a locality in Tucumán Province, northern Argentina. The species is named after Argentine naturalist Galileo Juan Scaglia (1915–1989). Its karyotype has 2n = 36 and FN = 64.
The forest tuco-tuco was formerly considered a species of rodent in the family Ctenomyidae. It is endemic to Salta and southeast Jujuy Provinces in northwest Argentina. The IUCN currently recognizes it as a subspecies of C. frater.
Yolanda's tuco-tuco is a species of rodent in the family Ctenomyidae. The species is endemic to Santa Fe Province, northeast Argentina, where it lives near the Paraná and San Javier rivers. Its karyotype has 2n = 50 and FN = 78. It is named after Argentine biologist Yolanda Davis.
