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HOME --> CLASS MAMMALIA
--> ORDER RODENTIA
--> SUBORDER MYOMORPHA
--> SUPERFAMILY Muroidea
--> FAMILY Cricetidae
--> SUBFAMILY Arvicolinae
--> GENUS Dicrostonyx
SPECIES Dicrostonyx unalascensis
| Author: | Merriam, 1900. | | Citation: | Proc. Wash. Acad. Sci., 2: 25. | | Common Name: | Unalaska Collared Lemming | | Type Locality: | USA, Alaska, Umnak Isl. | | Distribution: | Umnak and Unalaska isls of Aleutian Archipelago, Alaska, USA. | | Status: | IUCN – Data Deficient. | | Comments: | Conventionally viewed as a form of D. groenlandicus (Hall, 1981; Hall and Cockrum, 1953; Jarrell and Fredga, 1993); retained as a species based on its distinctive pelage, craniodental form, and lack of specialized nival pelage and foreclaws, traits thought to be unique among Dicrostonyx (Gilmore, 1933; Musser and Carleton, 1993; Nelson, 1929; Rausch and Rausch, 1972). The most cranially divergent among the North American forms that Eger (1995) included in her morphometric analyses. |
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