MUSTELID.T: 239 



Mephitis occidentalis holzneri AIearns. (For Frank 

 X. Holzner.) 



SOUTHERN CALIFORNIA SKUNK. 



Similar to occidentalis but averaging smaller; skull nar- 

 rower; teeth heavier in proportion. 



Type locality. San Ysidrio Ranch, northern Lower Califor- 

 nia. 



Southern California Skunks are found in northern Lower 

 California and southern California west of the Deserts, inter- 

 grading northward with true occidentalis. Habits similar. 



Mephitis platyrhinus Howell. (Broad— nose.) 



BROAD-NOSED SKUNK. 



Elxternally similar to occidentalis; skull short, broad, flat- 

 tened in front; rostrum very broad; nasals short and broad; 

 zygomatic arches spreading less abruptly and in an even curve 

 nearly parallel to the axis of the skull. 



Type locality, South Fork of Kern River, California. 



Southern and eastern foothills of the Sierra Nevada and 

 Owen Valley. 



Mephitis estor Mlrriam. (Eater.) 



ARIZONA SKUNK. 



Similar to occidentalis; black stripe on back usually narrow; 

 tail with white tip and more or less white at the sides, the bases 

 of most of the tail hairs white; skull similar to that of occiden- 

 talis; teeth smaller; zygomatic arches heavier. 



Length about 640 mm. 25.15 inches); tail vertebrae 285 

 (11.25) ; hind foot 68 (2.67) ; ear from crown 18 (.70). 



Type locality, San Francisco Mountain, Arizona. 



Arizona, New Mexico, Sonora, northeastern Lower Califor- 

 nia and eastern California along the Colorado River. 



