﻿364 PROCEEDINGS OF THE NATIONAL MUSEUM vol. lOo 



Distribution. — Eastern Ecuador and probably the upper Amazonian 

 regions of Colombia and northwestern Peru. 



Characters. — Most saturate of South American races; with more 

 black on head, tip of ear, back, upper surface of tail, base of claws, and 

 sole of hind foot. 



Measurements. — Of two adult males: Total length, 370, 370; hind 

 foot, 80, 82; ear, dry from notch, 50, 52; condylobasal length, 63.5, 

 61.7; zygomatic breadth, 34.9, 36.5; length of nasals, 29.8, 29.4; 

 greatest width of nasals at premaxillary sutures, 15.4, 13.9; least 

 length of palatal bridge, 5.7, 6.3; distance between outer sides of 

 maxillary plates of tooth rows, 22.7, 22.5; alveolar length of molar 

 row, 14.4, 13.9. 



Remarks. — Sylvilagus brasiliensis defilippi is the only leporid 

 described from the Amazonian basin east of the Andes. Because 

 authors had assumed the type locality of dejilippi to be somewhere on 

 the eastern slope of the Cordillera Oriental of Ecuador, tapitis from 

 the Peruvian Andes in the Amazonian drainage were referred to the 

 "species" dejilippi. As a subspecies of brasiliensis, however, there 

 is no reason to believe that defilippi is any more closely related to 

 tapitis from isolated localities in the Peruvian Andes than it is to the 

 geographically nearest but very different appearing S. b. andinus. 



In agreement with Cornalia's observation, the writer also noted 

 while he was in the upper Rio Napo region, that tapitis were abundant 

 near native huts when a jaguar moved into the vicinity. 



Specimens examined. — Three. Montalvo, Rio Bobonaza, 1 (C. 

 N.H.M.); Rio Pindo Yacu, upper Rio Tigre, 2 (C.N.H.M.). 



SYLVILAGUS BRASILIENSIS CAPSALIS Thomas 



Lepus brasiliensis, Thomas, Proc. Zool. Soc. London, 1882, p. 101 (Cutervo, 



Cajamarca). 

 Sylvilagus capsaUs Thomas, Ann. Mag. Nat. Hist., ser. 8, vol. 11, p. 213, 1913; 



ser. 9, vol. 18, p. 167, 1926 (part; Celendin, Cajamarca).— Osgood, Publ. 



Field Mus. Nat. Hist., zool. ser., vol. 10, p. 170, 1914 (Hacienda Llagueda, 



east of Otuzco, Libertad). 

 S[ylvilagus] capsalis, Cabrera, Trab. Mus. Cienc. Nat., Madrid, ser. zool.. No. 



9, pp. 6, 7, 8, 1913 (comparisons; distribution). 



Holotype.— Adult female, skin and skull, B.M. No. 0.3.15.29; 

 collected November 8, 1899, by Perry O. Sunons; original number, 718. 



Type locality. — San Pablo, Cajamarca, western slope of Cordillera 

 Occidental, Peru; altitude, 2,000 meters. 



Distribution. — Arid or semiarid western slopes of the Cordillera 

 Occidental, department of Cajamarca, northern Peru. Specimens 

 recorded by Thomas (supra cit.) from the Peruvian departments of 

 Amazonas and San Martin are provisionally assigned to the race 

 next described. 



