74 Merriam Three New Foxes. 



length 844; tail vertebrae 280; hind foot 131. Average of 2 females from 

 type locality: total length 844; tail vertebrae 280; hind foot 122. 



Vulpes macrotis neomexicanus subsp. nov. 



Type from San Andreas Range, New Mexico (about 50 miles north of 

 El Paso). No. 98,646 $ ad., U. S. National Museum, Biological Survey 

 Collection. Collected April 4, 1899 by C. Barber. Original No. 2055x. 



Characters. Similar to macrotis but larger. Skull and teeth larger 

 and heavier. 



Cranial characters. Compared with macrotis the skull is slightly 

 larger and decidedly heavier and broader; rostrum much thicker; fron- 

 tals broader; zygomata more spreading; bullae larger and heavier with 

 anteriorly projecting point on inner side; under jaw decidedly heavier 

 and more bellied; coronoid process higher. 



Curiously enough the skull resembles that of muticus from the distant 

 San Joaquin Valley much more closely than it does that of its near neigh 

 bor, macrotis. Contrasted with muticus it is slightly smaller; bullae 

 larger with anteriorly projecting point on inner side; under jaw less 

 deeply bellied; crowns of lower premolars longer (especially the 3d and 

 4th) so that the lower premolars are in contact or nearly so, while in 

 muticus they are widely spaced, even more so than in macrotis. 



Measurements. Adult female from Fort Grant, Arizona (measured in 

 flesh by Dr. B. H. Butcher): total length 820; tail vertebras 300; hind 

 foot 135. No measurements of male available. 



Vulpes muticus sp. nov. 



Type from Tracy, San Joaquin Valley, California. No. 75,828 $ ad., 

 U. S. National Museum, Biological Survey Collection. Collected Nov. 

 5, 1895 by George Leonard. 



Characters. Similar to macrotis but decidedly larger; hind foot and 

 tail longer; chin and under lip blacker; top of head and middle of back 

 with more reddish brown showing through between grayish tips; outer 

 side of hind foot more fulvous; top of hind foot less white; pectoral 

 collar more pronounced; black tip of tail less extensive on underside. 



Cranial characters. Skull larger, broader, and more massive; f rentals 

 flattened and thickened, forming a triangular shield which in adults 

 reaches to parietals; rostrum very much broader; postorbital processes 

 larger and more massive; under jaw much heavier and more deeply bel 

 lied under sectorial and last premolar; carnassial teeth and molars larger 

 and much heavier; premolars thicker but not otherwise larger. 



Measurements. Type specimen $ ad. (a well made study skin): total 

 length 950; tail vertebrae 350; hind foot 122 [in flesh at least 126]. 



