354 SOME UNDESCBIBED WOOD RATS— TRUE. vol. xvn. 



NEOTOMA MACROTIS SIMPLEX, new subspecies. 



Similar to N. macrotis, but all the under surfaces and the feet white, 

 the hairs being of this color to the roots. Tail rather sharply bicolored. 

 Ears very thinly clothed with whitish hairs. 



Skull as in N. macrotis^hnt the extremity of the anterior palatal spine 

 touches the vomer. 



Dimensions of the type (No. 3651, U.S.N.M.).* — Head and body, 

 213 mm.; tail vertebriie, 167; hind foot (without claw), 35; ear, from 

 orifice, 37. 



Dimensions of skull (No. 3598, U.S.ISr.M.). — Total length, 48 mm.; 

 basilar length (Hensel), 38; zygomatic breadth, 24.3; length of nasals, 

 18.5; length of incisive foramina, 9.5. 



Type.— No. 3651, U.S.N.M., Fort Tejon, Cal. Collected by J.Xantus. 



NEOTOMA VENUSTA, new species. 



Size moderate Ears large and thin. Tail as long as the head and 

 body. 



U])per surfaces mingled buft' and i)ale gray. Sides clearer butt", 

 sharply marked oft" from the color of the under surfaces, which together 

 with the feet are pure white. Hairs white to the base on the throat, 

 sides of cheeks, breast, inside of fore legs, inguinal region, and feet. 

 A tuft of pure white hairs at the base of the outer margin of the ears. 

 Ears thinly clothed with long, whitish hairs. Tail gray above, pure 

 white below. 



Skull thick and massive. Nasals shorter than the intermaxillae and 

 much contracted posteriorly. Interparietal large, with a convex pos- 

 terior margin. Incisive foramina short and broad, reaching posteriorly 

 about to the line of the molars. Tympanic bulla' large. Foramen 

 magnum low and wide. Posterior termination of palate concave. 



Incisors very broad and convex. Molars long and broad. 



Dimensions of the type (No. UUh U.S.N.M.).!— Total length, 364 

 mm.; tail, 173; hind foot, 35. 



Dimensions of the skull of type. — Total length, 43 mm. ; basilar length 

 (Hensel), 36; zygomatic breadth, 23.4; length of interparietal, 6.2; 

 length of incisive foramina, 8.2; length of molars (alveoltTe), 9.4; 

 breadth of incisors, together, 4.0; breadth of foramen magnum, 7.5. 



Ty2)e. — No. fif^f, male, Carrizo Creek, California. Collected by F. 

 Stephens. 



NEOTOMA OCCIDENTALIS FUSCA, new subspecies. 



Back blackish, sides tawny-gray, belly soiled white. Under side of 

 neck tawny-gray. A small area of entirely white hairs between the 

 fore legs. Upper portion of legs gray both above and below. Fore 



' From the dry skin. t Collector's measurements. 



