Merrlam N~ew Mammals from the United States. 75 



Urocyon elements^ sp. nov. 



Type from San Clemente Island, Santa Barbara Islands, California. 

 No. 92,034 $ ad., U. S. National Museum, Biological Survey Collection, 



Geographic distribution. San Clemente Island, California. 



Characters. Similar to littoralis, but dusky patch at base of whiskers 

 much blacker and more sharply defined, with a clean white area between 

 it and base of nose-pad, as in santacruza; throat clearer white; underside 

 of thigh and upperside of hind foot whitish, in some cases nearly pure 

 white. 



Cranial characters. Skull similar to littoralis^ but smaller; nasals 

 more tapering posteriorly and broadest in the middle (instead of con 

 stricted in the middle); rostrum more slender; frontal spines rather long; 

 anterior ascending arm of jugal very broad; bullae smaller and more in 

 flated; upper carnassial narrower. U. element differs from catalince, its 

 neighbor in the southern group, as follows: size smaller; nasals broader 

 in the middle and more tapering posteriorly; bullae more inflated (especi 

 ally anteriorly); carnassial and molar teeth smaller. 



Measurements. Average of 6 specimens: total length 688; tail 250; 

 hind foot in dry skin 100. 



Urocyon littoralis santacruzae subsp. nov. 



Type from Santa Cruz Island, Santa Barbara Islands, California. No. 

 ffrff 9 a d., U. S. National Museum, Biological Survey Collection. 



Geographic distribution. Santa Cruz Island, California. 



Characters. Similar to littoralis, but fulvous areas slightly more ex 

 tensive and more intense; dusky patch at base of whiskers larger and 

 darker; whitish area on underside of thigh and top of hind foot suffused 

 with buff> fulvous; nasals slender and tapering posteriorly. 



Cranial characters. Similar to littoralis, but skull slightly smaller; 

 nasals much narrower, slender and tapering (instead of expanded) poste 

 riorly, and not constricted in the middle; frontal spines long; rostrum 

 narrower; anterior ascending arm of jugal broader; bullae smaller, more 

 inflated posteriorly, narrower anteriorly; basioccipital narrower; upper 

 carnassial narrower. 



Measurements. Average of 3 specimens: total length 708; tail 266; 

 hind foot 109. 



