HOME --> CLASS MAMMALIA
--> ORDER RODENTIA
--> SUBORDER HYSTRICOMORPHA
--> INFRAORDER HYSTRICOGNATHI
--> FAMILY Ctenomyidae
--> GENUS Ctenomys
SPECIES Ctenomys torquatus
Author: | Lichtenstein, 1830. | Citation: | Darst. Säugeth.: text of pl. 31. | Common Name: | Collared Tuco-tuco | Type Locality: | Brazil, S provinces, and banks of Uruguay River. See Moojen (1952:188). | Distribution: | Uruguay, NE Argentina, extreme S Brazil. | Status: | IUCN – Lower Risk (lc). Endangered from stripe coal mining (Freitas, 1995). | Comments: | Considered a distinct species by Ellerman (1940) and Nowak (1999); but see Cabrera (1961:547) who provisionally included it in brasiliensis. Although six different karyotypes attributed to C. torquatus have been reported (Freitas and Lessa, 1984; Kiblisky et al., 1977; Reig et al., 1966), two of those (2n=56 and 70) were from populations currently recognized as C. pearsoni (Novello and Lessa, 1986). Populations of C. torquatus from S Brazil and N Uruguay have 2n=44-46 (FN=72) and populations from S Uruguay and NE Argentina have 2n=64 or 68 (FN=96); see Freitas and Lessa (1984). |
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