82 Nelson Descriptions of New North American Rabbits. 



GENUS SYLVILAGUS GRAY. 

 1 Sylvilagus cognatus sp. nov. 



MAXZANO MOUNTAIN COTTONTAIL. 



Type No. 136,569, adult, U. S. National Museum (Biological Survey Col 

 lection), from 10,000 feet altitude, near the summit of Manzano Moun 

 tains, New Mexico; collected by A. Ilea, February, 1905. 



Geographic distribution. Higher slopes of the mountains of central and 

 eastern New Mexico. 



Specific characters. General color pale slightly buffy gray like S. 

 robastus but smaller with smaller skull, much smaller bulke and slenderer 

 supraorbitals. 



Measurements of type. Total length, 390; hind foot, 100; length of ear 

 from notch, 69 (all the foregoing measurements are from the dry skin). 



Sylvilagus floridanus similis suhsp. nov. 



NEBRASKA COTTONTAIL. 



Type No. 69,517, adult male, U. S. National Museum (Biological Survey 

 Collection), from Valentine, Nebraska; collected by C. P. Streator, No 

 vember 10, 1894. 



Geographic distribution. Western border of Minnesota, eastern border 

 of the Dakotas, Nebraska and the northeastern quarter of Colorado. 



Subspecific characters. A pale, gray form like mearnsi but smaller and 

 distinctly paler. 



Measurements of type. Total length, 410; tail vertebrae, 61 ; hind foot, 

 100; length of ear from notch in dried skin, 51. 



Sylvilagus floridanus restrictus subsp. nov. 



MICHOACAN COTTONTAIL. 



Type No. 33,687, adult male, U. S. National Museum (Biological Survey 

 Collection), from Zapotlan, Jalisco, Mexico; collected by E. W. Nelson, 

 April 25, 1892. 



Geographic distribution. Mainly in the pine and oak forests of the 

 Sierra Madre in the States of Michoacan, southern and western Jalisco and 

 the southeastern part of the Territory of Tepic, Mexico. 



Subspecific characters. Similar in size to S. f. subcinctus but decidedly 

 more rusty reddish ( almost as in aztecus ) with legs much brighter rufous 

 than in any other form of floridanus on the Mexican tableland. 



Measurements of type. Total length, 425; tail vertebrae, 55; hind foot, 

 94; length of ear from notch in dried skin, 58. 



Sylvilagus auduboni vallicola subsp. nov. 



SAN JOAQUIN COTTONTAIL. 



Type No. f|f ff , adult female, U. S. National Museum (Biological Survey 

 Collection), from San Emigdio Ranch, Kern County, California; collected 

 by E. W. Nelson, October 22, 1891. 



Geographic distribution. Mainly in the southern two-thirds of the San 

 Joaquin and adjacent connected valleys, central California. 



