23-1 DIPODOMYS. 



e.—rimbiguus. {DipoJomrs), Merr.,N. Am. Faun., No. 4, 1890, p. 42. 



Ty/>e locality. El Paso, Texas. 



Geogr. Distr. Northwestern Texas. 



Genl. Char. Tail one-third longer than head and body; size me- 

 dium; body slender. 



Color. Above buffy drab; sides tinged with pale buff and lined 

 everywhere with black; beneath white. Upper and lower tail stripes 

 dusky to tip; lateral stripe white, terminating with the vertebra?. 



Miasiircments. Total length, 233; tail vertebra^, 133; hind foot, 

 37; ear, 7. 



f.— parvus. {Dipodomys), Rhoads, Amer. Nat., 1894, p. 70. 



Type locality. San Bernardino, California. 



Geogr. Distr. San Bernardino Valley, southern California. 



Genl. Char. Similar to D. merriami, smaller, tail longer and 

 without black markings on face and nose. 



Color. Above buffy gray, sides buff; under parts white; usual 

 white eye and ear spot, and stripe on thighs; dark dorsal and ventral 

 tail stripes brownish black, pencil sooty black; lateral stripes white; 

 orbital ring black; under surface of hind foot brownish. 



Measunmcnts. Total length, 248 ; tail vertebra;, 154; hind foot, 

 35; ear, 10. 



^.—similis. ' {Dipoi/ouns), Rhoads, Proc. Acad. Nat. Scien. Phil., 

 1893, p. 411. 



T)pe locality. White Water, San Diego County, California. 



Geogr. Distr. Southeastern California. 



Genl. Char. Similar to D. m. simiolus, darker; legs and tail rela- 

 tively shorter. Skull with smaller mastoids, and wider across ante- 

 orbital processes of maxillary than in D. m. simiolus, and the lower 

 premolar wider than long. 



Color. Above light tawny lined sparingly with blackish, darkest 

 on rump: beneath white. Dorsal and ventral tail stripes blackish to 

 tip; lateral stripes white. 



Measurements. Total length, 241; tail vertebra^, 143; pencil, 25; 

 hind foot, 38; ear above crown, 10.5. Skull: basilar length, 22; mas- 

 toid breadth, 24.5. interorbital constriction, 14; nasals, 14; coronoid 

 process from angle, 5. 



h. — simiolus. [Dipodomns), Rhoads, Proc. Acad. Nat. Scien. Phil., 

 1893, p. 410. 



Type locality. Agua Caliente, California. 



Geogr. Distr. Coast region of California, north of San Fran- 

 cisco. 



Genl. Char. Similar to D. deserti, but smaller; pencil not white. 



