THE phenomena of hibernation and æstivation have both been recorded in the genus Citellus, and although it is not known whether the two phenomena are physiologically the same1, nevertheless ...
Skull. Mandible, Teeth. Left; Updated USNM Number V18508 Place Colorado, United States, North America Published Name Citellus richardsoni (Sabine) See more items in Paleogeneral Mammals Terrestrial - ...
WITH present knowledge and techniques, a more meaningful application of biochemical data towards classification schemes may be made at the family level and lower 1.
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