I 93-] Allen, Mammals from New Mexico and Durango. 5^9 



Only two are fully adult, both males, and measure, respec- 

 tively: Total length, 248, 229; tail vertebrae, 102, 89; hind 

 foot (without claws), 19, 19. 



4. Neotoma mexicana Baird. 



Forty-eight specimens, taken as follows; Guadalupe Ranch, 

 18, Dec. 8-13; La Mesa, 28, Dec. 13-18; Chamberino, 2, Dec. 

 25 and 26. Nearly one half are fully adult, one is in the 

 plumbeous pelage of the young, and the rest range from half 

 or two thirds grown to nearly adult. 



Nine adult males from the La Mesa series measure: Total 

 length, 324 (311-337); head and body, 180 (171-191); tail 

 vertebrae, 145 (137-152, with i at 121 and i at 165); hind 

 foot (without claws), 32.5 (32-36); ear (from notch), 27 

 (25-29). Five adult males from Guadalupe Ranch: Total 

 length, 329 (305-347); head and body, 185.3 (172-197); tail 

 vertebrae, 133 (127-140); hind foot, 32.8 (31.5-34); ear, 27 

 (25.5-29). Three females from La Mesa: 312 (305-319); 172 

 (165-179); 140(140-140); 32(32-32); 27(25.5-28.5). Four 

 females from Guadalupe Ranch: 298 (286-311); 170 (159- 

 184); 128 (127-130); 32 (32-32); 26.3 (25.5-29). 



5. Lepus (Macrotolagus) texianus griseus Mearns. 



Represented by 17 specimens (7 males and 10 females), col- 

 lected as follows: Guadalupe Ranch, u, Dec. 6-12; La Mesa, 

 4, Dec. 16-20; Chamberino, 2, Dec. 27. 



Ten females measure as follows: Total length, 560 (546- 

 615); head and body, 469.5 (438-527); tail vertebrae, 82 

 (70-94); hind foot (without claws), 127.6 (114-145); ear 

 from notch, 130 (124-140); ear from crown, 160 (156-162). 

 Six males: Total length, 564 (432-626); head and body, 453 

 (432-528); tail vertebrae, 83 (70-98); hind foot (without 

 claws), 131 (114-140); ear (from notch), 131 (121-138). 



The specimens, all adult and in full winter pelage, vary but 

 little in coloration; in a small percentage the back is much 

 more strongly varied with black than the others ; the gray of 

 the upper parts is decidedly more tinged with brownish ful- 



