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HOME --> CLASS MAMMALIA
--> ORDER RODENTIA
--> SUBORDER MYOMORPHA
--> SUPERFAMILY Muroidea
--> FAMILY Cricetidae
--> SUBFAMILY Cricetinae
--> GENUS Cansumys
SPECIES Cansumys canus
| Author: | G. M. Allen, 1928. | | Citation: | J. Mammal., 9: 245. | | Common Name: | Gansu Hamster | | Type Locality: | China, S Gansu Prov., Jonę (=Choni or Cho-Ni), "around 2500 m" (Corbet and Hill, 1992:393). | | Distribution: | Known only from the type locality and possibly Henan Prov., NC and EC China; limits unresolved. | | Status: | IUCN – Lower Risk (lc). | | Comments: | Viewed either as a form of Cricetulus triton (Corbet, 1978c; Ellerman, 1941; Ellerman and Morrison-Scott, 1951) or as a valid species of Cansumys (Corbet and Hill, 1991, 1992; Musser and Carleton, 1993; Pavlinov et al., 1995a). Zhang et al. (1997) and Wang (2003) included Shaanxi Prov. within the distribution of canus (as a species of Cricetulus or Cansumys, respectively) because they regarded ningshaanensis as its subspecies; in fact, Song (1985) had described ningshaanensis from Shaanxi as a subspecies of Tscherskia triton. The tail in ningshaanensis has a longer white segment and is longer relative to head and body as compared with triton, but no other features in the original description implicate ningshaanensis as a form of canus. Cansumys canus possesses long semi-hypsodont molar rows (6.4-6.6 mm; based on the holotype and two topotypes in AMNH and FMNH), but ningshaanensis has shorter toothrows (4.7-5.7 mm), well within the range characteristic of T. triton. The occurrence of C. canus in Henan Prov., as reported by Lu and Wang (1996), also requires reverification. |
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