SYLVILAGUS. 115 



Lepus vera-crucis Thos., Proc. Zool. Soc. Lond., 1890, p. 74, pi. vi; 

 Elliot, Mamm. Middle Amer. and W. Indies, F. C. M. Pub., 

 IV, Pt. i, 1904, p. 420, Zool. Ser.; Id. Check-List Mamm. N. 

 Amer. Cont. and W. Indies, 1905, p. 347. 

 Type locality. Sacualpan, State of Vera Cruz, Mexico. 

 From an examination of Waterhouse's type in the Berlin Museum, 

 Mr. Osgood (I. c.) decided that the example could not be separated 

 from Lepus verce-crucis Thomas, and therefore this name must become 

 a synonym, and the species be known as Sylvilagus cunicularius (Water- 

 house) . 



Sylvilagus cognatus Nelson. 



Sylmlagus cognatus Nels., Proc. Biol. Soc. Wash., XX, 1907, p. 82. 



Type locality. Near summit of the Manzano Mountains, Valencia 

 County, New Mexico. 



Geogr. Distr. High mountain summits and adjacent slopes of 

 central-eastern New Mexico.. Vertical range from about 6500 to 

 10,200 feet altitude on Manzano Mountains, zone range mainly tran- 

 sition, and lower part of Canadian zone. 



Genl. Char. Color pale; skull small with slender supra-orbital 

 and smaller bullse. 



Color. Top of head and upperparts buffy gray tinged with black; 

 rump iron-gray; head about eyes rusty buff; sides of head iron-gray 

 tinged with buff, as are also the flanks; nape rusty rufous; sides of 

 neck and shoulders rusty buff washed with buff -gray; front and sides 

 of legs pale rusty; top of fore feet whitish; back and outer side of 

 hind legs pale rusty cinnamon, tips of hairs gray; hind feet on top, 

 white; neck beneath pale buffy gray, base of fur plumbeous; under 

 parts of body white; outer side of ears buff -gray, front edge of termi- 

 nal third blackish; tail buff -brown and washed with gray. Ex type 

 in United States National Museum. 



Measurements. Total length, 390; hind foot, 100; ear, 68. 

 Skull: Occipito-nasal length, 71.7; Hensel, 55.4; zygomatic width, 

 36.5; intertemporal width, 13.8; median length of nasals,' 20.9; 

 palatal length, 5.8; length of upper molar series, 13.4; length of 

 mandible, 34; length of lower molar series, 12.3. Ex type in United 

 States National Museum, 



Sylvilagus auduboni vallicola Nelson. 



Sylmlagus auduboni vallicola Nels., Proc. Biol. Soc. Wash., XX, 



1907, p. 82. 

 Type locality. San Emigdio Ranch, Kern County, California. 



