﻿360 PROCEEDINGS OF THE NATIONAL MUSEUM vol. io« 



duced size of the patch in the type of chimbanus is accounted for by 

 a deep artificial fold of skin behind the ears, an artifact of the pre- 

 parator. This condition appears also in a topotype at hand and had 

 been noted in other specimens from the Rio Chimbo recorded by the 

 writer {supra cit.). There is no significantly real difference in length 

 of nuchal patch among the various races of tapitis. Apparent dif- 

 ferences in this character are almost entirely due to factors involved 

 with preparation of skins. Characters originally noted for distinguish- 

 ing carchensis from andinus are not now regarded as of subspecific 

 importance. 



Specimens examined. — Twenty-four. The type (B.M.); Quito, 1, 

 the type of ecaudatus (M.N.H.N.) ; La Compafiia, near Cangagua, 

 Pichincha, 3,400 meters, 9 (8, U.M.M.Z.; 1, C.N.H.M.); 5 miles 

 southwest of San Gabriel, Carchi, 2,900 meters, 10 including the type 

 of carchensis (8, U.M.M.Z.; 1, C.N.H.M.); El Angel, Carchi, 1 

 (C.N.H.M.) ; SInchic, Guaranda, Bolivar, 4,000 meters, 2, including 

 the type of chimbanus (B.M.; U.S.N.M.). 



SYLVILAGUS BRASILIENSIS NIVICOLA Cabrera 



S[ylvilagus] sp. Cabrera, Trab. Mus, Cienc. Nat., Madrid, ser. zool.. No. 11, 



p. 119, 1912 (Mount Antisana, Ecuador). 

 Sylvilagus nivicola Cabrera, Trab. Mus. Cienc. Nat., Madrid, ser. zool., No. 9, 



p. 4, pi. fig. 2 (colored), 1913; No. 31, p. 56, 1917 (Mount Antisana).— 



Hershkovitz, Occ. Papers Univ. Michigan Mus. Zool., No. 393, p. 11, 1938 



(discussion). 



Holotype. — Adult male, skin and skull, Mus. Ciencias Nat. Madrid 

 No. 749; collected January 1865 by Marcos Jimenez de la Espada; 

 original number, 10. 



Type locality. — Mount Antisana, Cordillera Oriental, near snow line, 

 probably in the neighborhood of 4,500 meters above sea level, Pi- 

 chincha Province, Ecuador. 



Distribution. — Known only from type locality. 



Characters. — Paler throughout than andinus with nuchal patch dark 

 gray, not tawny or ochraceous as in other tapitis. 



Remarks. — Whether the dark gray nape is a natural and consistent 

 pecuharity of tapitis from Mount Antisana remains to be verified. 

 In many individuals of andinus nuchal hairs without reddish tips 

 would also form a dark-gray patch. 



Specimens examined. — None. 



SYLVILAGUS BRASIUENSIS CANARIUS Thomas 



Sylvilagus andinus canarius Thomas, Ann. Mag. Nat. Hist., ser. 8, vol. 11, p. 213 

 1913. — Anthony, Amer. Mus. Nov. No. 55, p. 10, fig. 3 A, 1923 (Taragua- 

 cocha, El Oro). — Hershkovitz, Occ. Papers Univ. Michigan Mus. Zool, 

 No. 393, p. 13, 1938 (Taraguacocha, El Oro; comparisons). 



S[ylvilagus] a[ndinus] canarius, Cabrera, Trab. Mus. Nac. Cienc. Nat., Madrid, 

 ser. zool.. No, 9, pp, 6-8, 1913 (distribution). 



