40 



NOETH AMEEICAN FAUNA. 



[No. 36. 



series from Guadalupe y Calvo, Chihuahua, forming the basis of 

 ^'ohscurus'^ is too shghtly different to warrant recognition. The 

 coloration of the two series is practically the same, and the skulls of 

 ^'ohscurus^' average only shghtly larger. 



This subspecies bears a striking resemblance to longicaudus from 

 California, but differs in having ochraceous underparts, slightly 

 longer tail, and a little more oclu-aceous color on the head. 



Specimens examined. — Total number, 27, from the following locali- 

 ties in Mexico : 



Chihuahua: Sierra Madre, near Guadalupe y Calvo, 3. 



Durango: El Sal to, 2. 



Zacatecas: Valparaiso Mountains, 14. 



Michoacan: Nahuatzin, 2; Patamban, 4. 



Jalisco: Volcan de Fuego, 2.^ 



REITHRODONTOMYS AMOLES sp. nov. 



QUERETARO HARVEST MoUSE. 



Type from Pinal de Amoles, Queretaro, Mexico. No. 81234, U. S. 

 Nat. Mus., Biological Survey Collection, ? adult, September 20, 1896; 

 E. W. Nelson and E. A. Goldman. Original No. 10169. 



Characters. — Similar in color to R. m. saturatus, but very much 

 smaller. 



Color. — Worn pelage: Upperparts mixed blackish and ochraceous- 

 buff; underparts whitish, strongly tinged on pectoral region with 

 ochraceous-buff ; tail fuscous above, grayish white below; hind feet 

 whitish; fore feet white with a pronounced dusky stripe on upper 

 surface; ears dark brown (much mutilated, and size not known). 



Slcull. — Similar to that of R. m. megalotis but much smaller; 

 zygomata parallel; bullae smaller and rather flat. 



Measurements. — Type: Total length, 154; tail vertebrae, 83; hind 

 foot 16.5. Skull: (See table, p. 81.) 



RemarTcs. — On geographical grounds this form ought to be close to 

 R. m. saturatus, but it differs markedly in size from that race. It is 

 even smaller than R. m. zacatecse of the Sierra Madre, wdiich it some- 

 what resembles in color. 



Specimen examined. — One, the type. 



REITHRODONTOMYS CATALIN^ Elliot. 



Catalina Harvest Mouse. 



Rhithrodontomys catalinse Elliot, Pub. Field Columb. Mus., Zool. Ser. Ill, 1903, p. 246. 

 Reithrodontomys megalotis catalinse Grinnell, Proc. Gal. Acad. Sci., Ser. 4, III, 1913, 

 p. 304. 



Type locality. — Santa Catalina Island, Cal. 

 Distribution. — Santa Catalina Island, Cal. 



1 Collection Am. Mus. Nat. Hist. 



