OCHOTONA. LEPUS. 209 



Geogr. Distr. Snowy Range, Colorado; limits not known. 



Genl. Char. Large; color pale; "skull wide between orbits; 

 nasals and rostrum very long; palatine fossa long and narrow-; palatal 

 bridge narrow, its anterior edge falling far back." 



Color. Above pale yellowish brown mixed with black on head 

 and back; cheeks, sides of neck and sides tinged with buff; under 

 parts buffy white to deep buff; feet buff, soles dusky; ear bordered 

 with white, grizzled gray inside. 



Measurements. Total length, 182; hind foot, 30.5. 



411. minimus. {Lagonns), Lord, Proc. Zool. Soc, 1863, p. 98. 



Type loeality. Ptarmigan Hill, Cascade Range, British Co- 

 lumbia. 



Geogr. Distr. British Columbia near boundary line: limits of 

 range unknown. 



Gcnl. Char. Small; color dark; skull smaller relatively in all its 

 parts than that of O. princeps. 



Color. Above dark gray tinged with yellow, most perceptible 

 about shoulders; sides and belly dirty white; feet yellowish brown; 

 ear black inside, bordered with white outside. 



Measurements. Total length, 164; ear from base behind, 25. 



*Fam. IX. Leporidae. 



Hind legs greatly elongated; ears very long; tail rudimentary, 

 bushy; skull flat; postorbital processes well developed; rami of man- 

 dible flat, deep; facial surface of maxilla perforated; all openings 

 large; palate a mere bridge between molars; clavicles imperfect. 



(59. Lepus. 



I. ?=H; p. 3i:_3; M. i=^ = 28. 

 I— l' 2—2' 3—3 



Lepus. Linn. Syst. Nat., 1758, p. 57. Type Z. timidus. 



Hydrolagus. Gray, Ana. Mag. Nat. Hist., 1867, xx, p. 221 (nee 

 Gill, Pise, 1862). 



Silvilagus. Gray, Ann. Mag. Nat. Hist., 1867, xx, p. 222. 



Mierotolagus. Mearns, Proc. U. S. Nat. Mus., 1895, p. 552. 



Limnolagus. Mearns, Science, N. S. , 1897, v, p. 393. 



Microlagus. Trouess. Cat. Mamni. vivent. quam fossil., 1S97, 3, 

 p. 66. 



Skull high, superior outline much curved, especially at occipital 

 region; postorbital processes in the majority of species long, more or 

 less divergent, flanking a deep, wide notch, their posterior extremi- 



•This Family is greatly in need o( a careful, impartial revision. 



