DIPODOMYS. PERODIPUS. 203 



Measurements. Total length, 333; tail vertebrae, 195; hind foot, 

 53.5; ear, 16. Skull: total length, 43; Hensel, 37; zygomatic width, 

 21; width of mastoids, 29; greatest width of parietal, 20; length of 

 nasals, 14; palatal length, 14; length of upper tooth row, 5; length 

 of mandible, 21 ; length of lower tooth row, 5. 



725. Dipodomys spectabilis Merriam. 



Dipodomys spectabilis Merr., N. Am. Faun., No. 4, 1890, p. 46. 

 Elliot, Syn. N. Am. Mamm., F. C. M. Pub., 11, 1901, p. 235. 

 Zool. Ser. Id. Mamm. Middle Amer. & W. Indies, F. C. M. 

 Pub., IV, Pt. I, 1904, p. 345. Zool. Ser. 

 Notable Kangaroo Rat. 



Type locality. Dos Cabezos, Cochise County, Arizona. 

 Geogr. Distr. Portions of Arizona and Texas, eastward to Sierra 

 Blanca, Texas, and south into the States of Chihuahua and Sonora, 

 Mexico. 



Genus 96. I*('ro<li|)iis. Kivo-tot'd K:iiiK-:ii*<>(> IJats. 



Perodipus Fitzin., Sitz. Math.-Natur. Classe K. Akad. Wiss. Wien, 

 Lvi. 1867. p. 126. Type Dipodomys agilis Gambel. 

 Dipodops Merr., N. Am. Faun., No. 3, 1890, p. 72. 



726. Perodipus agilis (Gambel). 



Dipodomys agilis Gambel, Proc. Acad. Nat. Scien. Phil., 1848, 



P- 77- 

 Dipodomys liermanni Le Conte, Proc. Acad. Nat. Scien. Phil., 



1853, p. 224. 



f Dipodomys vuagneri Le Conte, Proc. Acad. Nat. Scien. Phil., 



1853, p. 224. 



Perodipus agilis Elliot, Syn. N. Am. Mamm., F. C. M. Pub., 11, 



1901, p. 236, fig. 54. Zool. Ser. Id. Mamm. Middle Amer. 



& W. Indies, F. C. M. Pub., iv, Pt. i, 1904, p. 351. Zool. 



Ser. 



Nimble Kangaroo Rat. 



Type locality. Los Angeles, Los Angeles County, California. 



Geogr. Distr. Middle and southern California, south to Lower 



California, Mexico. 



a. PcTodipns agilis fuhtTcvsis Merriam. 



Perodipus agilis tularensis Merr., Proc. Biol. Soc. Wash., xvii, 

 1904, p. 143. 

 Tulare Kangaroo Rat. 



Type locality. Alila, Tulare County, California. 



