Predicrostonyx hopkinsi is an extinct rodent in the family Cricetidae, and is considered one of the earliest examples of collared lemmings.

References

  • Musser, G. G. and M. D. Carleton. 2005. Superfamily Muroidea. pp. 894–1531 in Mammal Species of the World a Taxonomic and Geographic Reference. D. E. Wilson and D. M. Reeder eds. Johns Hopkins University Press, Baltimore.