$Unique_ID{QAD00236} $Pretitle{} $Title{Genus Dipodomys.--Gray} $Subject{Genus Dipodomys. --Gray; Dipodomys; } $Journal{Quadrupeds of North America: Volume III} $Volume{Vol. 3:137} $Genus{Dipodomys} $Species{} $Common_Name{} $Log{} Portions copyright (c) Creative Multimedia Corp., 1990-91, 1992 A U D U B O N ' S M A M M A L S By John James Audubon, F. R. S., &c. &c. AND The Rev. John Bachman, D. D., &c. &c. ------------------------------------------- VOL. III. -------------------------------- GENUS DIPODOMYS.--GRAY. DENTAL FORMULA. 2 0-0 4-4 Incisive -; Canine ---; Molar --- = 20. 2 0-0 4-4 The incisors are of moderate length, rather weak, narrow, compressed, and curved inwards. In the upper jaw the first three molars are largest, the fourth a little smaller; in the lower jaw the molars are alike. The molars have rounded cutting edges. Nose and head, of moderate size; sacs or pouches opening on the cheeks back of the mouth; fore feet, rather short, furnished with four toes and the rudiment of a thumb, covered by a blunt nail; hind legs very long, terminated by four toes on each foot; toes, each with a distinct metatarsus tail, very long; mammae, four--two abdominal and two pectoral. Habits, semi-nocturnal; food, seeds, roots, and grasses. There is only one species belonging to this genus known. The generic name is derived from [dipous], two footed, and [mus], a mouse.