Western Mexico and Lower California. 41 



forms obtained by Dr. Buller in Jalisco and worked out by 

 Dr. A.llen. 



The Lower-Californian collection proves to be of unex- 

 pected interest, and contains the Dasypterus ega xanthinus 

 and Oryzomys peninsulce described in the last number of the 

 * Annals,' the badger [Taxidea taxus infasca *) brought by 

 myself and the peninsular mule-deer {Afazama hemionus 

 peninsulce *) by Mr. Lydekker before the Zoological Society, 

 and, finally, the species and subspecies described in the 

 present communication. 



There is also a Natalus, apparently inseparable from 

 N. siramineus, the first record of this tropical genus in Lower 

 California. The other bats appear to be ordinary Galiforniau 

 species. 



Felis yaguarondi tolteca^ subsp. n. 



Colour, instead of the blackish grey varied by erythrism 

 towards red of the typical form, pale grizzled fawn through- 

 out, greyer on the head, f< re neck, and limbs, clearer fawn 

 posteriorly and on the tail, which above is grizzled fawn, 

 and below unmixed fawn or rufous fawn. Under surface 

 soiled whitish fawn, the underfur brownish grey, the longer 

 hairs tipped with dull whitish. 



Skull, while of equal breadth, much shorter and more 

 stoutly built than in typica ; crown higher and more convex, 

 zygomata more massive, posterior narial fossa decidedly 

 broader, bulla3 lower. Ramus of lower jaw shorter and 

 stouter. 



Dimensions of the type (an old male, measured in the 

 flesh) :— 



Head and body 570 millim. ; tail 460 ; hind foot 138 ; 

 ear 37. 



Skull : basal length 84, basilar length of Hensel 82 ; 

 greatest breadth 64; least interorbital breadth 18 ; intertem- 

 poral breadth 33*5 ; breadth of brain-case above auditory 

 meatus 43 ; palate, length from henselion to posterior edge, 

 excluding median notch, 36 ; breadth between outer corners 

 of carnassials 38'7 ; breadth of posterior narial fossa 14; 

 front of canine to back of carnassial 28*7 ; length of upper 

 carnassial 11'3, of lower carnassial 9. 



Hah. Tatemales, Sinaloa. Coll. P. 0. Simons. 



Type collected 16th June, 1897. Original number 513. 



The above comparisons have been made with specimens 



* Diagnosed in Abstract of Meeting of Nov. 30. Published Dec. 1, 

 1897. 



