426 LEPUS. 



white above; hind legs white; tail above like rump, beneath, white; 

 ears pale yellowish brown and black, edged with white. 



Measurements. Total length, 420; hind foot, 50; ear, 50. Skull: 

 total length, 70; greatest width, 35; interorbital constriction, 18; 

 length of nasals, 31 ; width of nasals posteriorly, 14; length of upper 

 molar series, 1 2 ; length of lower jaw, 47. 



440. graysoni (Lepus}, Allen, Mon. $. Am. Rodent., 1877, p. 347. 

 GRAYSON'S HARE. 



Type locality. Maria Madre Island, Tres Marias Islands, State of 

 Jalisco, Mexico. 



Geogr. Distr. Tres Marias Islands, State of Jalisco, Mexico. 



Genl. Char. Ear very short ; colors pale. 



Color. Upper parts pale cinnamon brown mixed with blackish 

 brown; sides and rump paler; throat brown, rest of under parts white; 

 outer surface of legs reddish brown, inner surface whitish; ears yellow- 

 ish brown mixed with black at base, blackish brown toward tip; tail 

 above blackish brown, beneath white ; orbital ring pale brown. 



Measurements. Total length, 388-433; tail vertebrae, 19-25; hind 

 foot, 88; ear, 57. Skull: occipito-nasal length, 75; Hensel, 60; zygo- 

 matic width, 37 ; interorbital width, 18; median length of nasals, 24.5 ; 

 lateral length of nasals, 30; posterior width of nasals, 14.5; anterior 

 width of nasals, 9; palatal length, 30; length of upper tooth row, 13; 

 length of mandible, angle to tip of incisors, 60; length of lower tooth 

 row, 14. 



0. Tapeti. 



"Skull like that of Lepus, but the hinder supraorbital notch narrow, 

 lobes short with a sharp inner edge ; the front of the lower edge of the 

 zygoma dilated, sharp-edged, porous above, hinder nasal opening 

 rather narrow. Tail none. Ears short." (Gray, I.e.) 



KEY TO THE SPECIES. 



A. Ears very short ; tail practically none. PAGE 



a. Upper parts cinnamon brown and black L. gabbi 426 



b. Upper parts tawny ferrugineous and black L. incilatus 428 



441. gabbi (Lepus}, Allen, Mon. N. Am. Rodent., 1877, p. 349. 

 GABB'S HARE. 



Type locality. Talamanca, Costa Rica. 

 Geogr. Distr. Costa Rica. 



Genl. Char. Ears very short ; tail practically none. 

 Color. Above cinnamon brown and black; top of head yellow, 

 ferrugineous, and black; sides of head yellowish brown varied with 



