270 Field Museum of Natural History — Zoology, Vol. XI. 



Sylvllagua floridajtus 



Area ot Intergradation 



Map showing supposed distribution of Cotton-tail Rabbits belonging to the subgenus Sylvilagus 

 in eastern United States. 



Sylvilagus floridanus (Allen). (Bull. Amer. Mus. Nat. Hist., 1890, p. 160.) Type 

 locality — Sebastian River, Brevard Co., Florida. Size small; total length, 

 about 16 or 17 inches; color grayish brown or rusty brown; legs and nape 

 rufous brown. 



Sylvilagus f. malluriis (Thomas). (Ann. & Mag. Nat. Hist., 7th ser., II, 1898, 

 p. 320.) Type locality — Raleigh, North Carolina. Larger than floridanus 

 and ears longer; color paler. 



Sylvilagus f. mearnsii (Allen). Type locality — Fort Snelling, Minnesota. De- 

 scription as previously given. Total length, about 17.50 in.; tail vertebrae, 

 about 2.75 in.; hind foot, about 4 in. 



Sylvilagus f. alacer (Bangs). (Proc. Biol. Soc. Wash., X, 1896, p. 136.) Type 

 locality — Stilwell, Oklahoma. Smaller than mearnsii; size about the same 

 as floridanus; upper parts jnore reddish brown than mearnsii; total length, about 

 16.75 in.; tail vertebrae, 2.25 to 2.50 in.; hind foot, 3.75 in. 



Sylvilagus f. hitchensi Mearns. (Proc. U. S. Nat. Mus., XXXIX, 191 1, p. 227.) 

 Type locality — Smiths Island, Northampton Co., Virginia. Size ol mallurus 

 but paler, with upper parts sandy fulvous and skull and teeth larger. 



