266 Fretp Museum or Natura History — Zoézoey, Vor. XI. 
which will distinguish it from the Varying Hare, the only one of our 
species with which it might be confounded. 
Genus SYLVILAGUS Gray. 
Sylvilagus Gray, Ann. & Mag. Nat. Hist., 3rd Ser., XX, 1867, p. 221. 
Type Sylvilagus floridanus mallurus (Thomas). 
Interparietal distinct in adults; supraorbital prominent, but the 
postorbital process slenderer and more pointed, and more fused to the 
skull than in Lepus; occasionally the opening or foramen, usually 
separating the middle portion of the process from the skull, is very 
small or entirely absent; second to fourth cervical vertebre with 
dorsal surface flattened and shorter than broad; only one annual molt; 
does not turn white in winter; also other skeletal differences (described 
and illustrated by Nelson, N. Amer. Fauna, No. 29, 1909, pp. 39-40). 
Two subgenera are recognized, Svivilagus and Tapeti. 
Dental formula: I. a0, Pa 8, 2 
I-1 0-0 2-2 
Subgenus SYLVILAGUS Gray. 
Brain case higher and comparatively broader and whole skull 
relatively lighter and more slender than in Tapeti; tail and feet more 
thickly haired; pelage softer. 
Sylvilagus floridanus mearnsii (ALLEN). 
MeEarns’s CoTton—TaIL Raspit. GRAY RABBIT. 
Lepus sylvaticus mearnsii ALLEN, Bull. Amer. Mus. Nat. Hist., VI, 1894, p. 171 
(footnote). Exxriot, Field Columb. Mus. Pub., Zodl., I, 1898, p. 220, (Iowa). 
Lepus nanus Lapua, Trans. Wis. State Agr. Soc., II, 1852 (1853), p. 340 (Wis- 
consin). 
Lepus sylvaticus KENNicotTT, Agr. Rept. for 1857, U. S. Patent Office Rept., 1858, 
P. 77- 
Syluilagus floridanus mearnsi SNYDER, Bull. Wis. Nat. Hist. Soc., II, 1902, p. 124 
(Wisconsin). Jackson, Bull. Wis. Nat. Hist. Soc., VI, 1908, p. 25 (Wisconsin). 
Ib., VIII, 1910, p. 89 (Wisconsin). Haun, Ann. Rept. Dept. Geol. & Nat. 
Resources Ind., 1908 (1909), p. 534 (Indiana). Neztson, N. Amer. Fauna, 
No. 29, 1909, p. 169 (Indiana, Illinois, Wisconsin, Michigan, Minnesota, Iowa, 
Kentucky, Tennessee, etc.). Howkti, Proc. Biol. Soc. Wash., XXIII, 1910, 
p- 32 (Missouri, Illinois). 
Type locality — Ft. Snelling, Minnesota. 
Distribution — From north-central Kentucky, southern Illinois, central 
Missouri, northeast to Toronto, Canada, and north to northern 
Wisconsin and central Minnesota, west to Nebraska and Kansas. 
