collared lemming

{{Short description|Genus of rodents}}

{{Automatic taxobox

| name = Collared lemmings

| fossil_range = Early Pleistocene to Recent

| image = Reise in den äussersten Norden und Osten Sibiriens während der Jahre 1843 und 1844 mit Allerhöchster Genehmigung auf Veranstaltung der Kaiserlichen Akademie der Wissenschaften zu St. Petersburg (Taf. IV) (6760292351).jpg

| taxon = Dicrostonyx

| authority = Gloger, 1841

| type_species = Mus hudsonius

| type_species_authority = Pallas, 1778

| subdivision_ranks = Species

| subdivision = Dicrostonyx groenlandicus

Dicrostonyx hudsonius

Dicrostonyx nelsoni

Dicrostonyx nunatakensis

Dicrostonyx richardsoni

Dicrostonyx torquatus

Dicrostonyx unalascensis

}}

Dicrostonyx is a genus of rodent in the family Cricetidae.{{MSW3 Muroidea | id = 13000189 | pages = 970–973 | heading = Genus Dicrostonyx}} It contains the collared lemmings or varying lemmings. They are the only North American rodents that turn completely white in winter.{{Cite web|url=http://animaldiversity.org/accounts/Dicrostonyx_groenlandicus/|title=Dicrostonyx groenlandicus, Bering collared lemming|publisher=Animal Diversity Web|access-date=19 April 2016}}

It contains the following species:

• Northern collared lemming (Dicrostonyx groenlandicus)
• Ungava collared lemming (Dicrostonyx hudsonius)
• Nelson's collared lemming (Dicrostonyx nelsoni)
• Ogilvie Mountains collared lemming (Dicrostonyx nunatakensis)
• Richardson's collared lemming (Dicrostonyx richardsoni)
• Arctic lemming (Dicrostonyx torquatus)
• Unalaska collared lemming (Dicrostonyx unalascensis)