﻿MAMMALS OF NORTHERN COLOMBIA — HERSHKOVITZ 347 



SYLVILAGUS FLORIDANUS ORINOCI Thomas 



StjMlagus orinoci Thomas, Ann. Mag. Nat. Hist., ser. 7, vol. 5, p. 356, 1900. — 

 Tate, Bull. Amer. Mus. Nat. Hist., vol. 76, p. 174, 1939 (Maipures, Rio 

 Orinoco). 



Holotype. — Female, skin and skull, B. M. No. 99.9.11.49; col- 

 lected January 22, 1899, by George K. and Stella M. Cherric. 



Type locality. — Maipures, upper liio Orinoco, Vicliada, Colombia. 



Distribution. — Known only from type locality. 



Characters. — Paler than valenciae, but with side of face extremely 

 dark; darker than margaritae, under side of tail less contrasted mth 

 upper. 



Measurements. — Of a subadult topotype; Total length, 390; tail, 

 30; liind foot, 90; ear, dry from notch, 51; condylobasal length, 67.4; 

 zygomatic breadth, 36.1; length of nasals, 33.3; greatest combined 

 width of nasals across premaxillary sutures, 14.0; least length of 

 palatal bridge, 6.5; greatest distance between outer sides of maxillary 

 plates of tooth rows, 22.2; alveolar length of molar row, 14.8. 



Remarks. — The subadult topotype at hand is in old pelage, as 

 contrasted with the prime pelage of the available adult representative 

 of valanciae, the only form with which comparisons need be made. 



Specimens examined. — Two. The type (B.M.); Maipures, 1 

 (A.M.N.H.). 



SYLVILAGUS FLOKIDANUS MARGARITAE (Miller) 



Lepus brasiliensis, Robinson (nee Linnaeus), Proc. U. S. Nat. Mus., vol. 18, p. 



651, 1896 Margarita Island). 

 Lepus margaritae Miller, Proc. Biol. Soc. Washington, vol. 12, p. 97, 1898. — 



Robinson and Lyon, Proc. U. S. Nat. Mus., vol. 24, p. 162, 1902. 

 Sylvilagus (Sylvilagus) margaritae, Lyon, Smithsonian Misc. Coll., vol. 45, p. 336, 



pis. 86, 87, fig. 5 (type skull), 1904. 

 Sylvilagus margaritae, Osgood, Publ. Field Mus. Nat. Hist., zool. ser., vol. 10, p. 



29, 1910 (Margarita: Puerto Viejo; Porlamar; Macanao). 

 S[ylvilagus] margaritae, Thomas, Ann. Mag. Nat. Hist., ser. 8, vol. 11, p. 211, 



1913 (synonym of cumanicus); ser. 9, vol. 5, pp. 32-33, 1920 (comparison 



with purgatus). 

 Sylvilagus cumanicus margaritae, Hummelinck, Studies on the fauna of Curasao, 



Aruba, Bonaire and the Venezuelan Islands, vol. 1 (Utrecht), p. 68, 1940 



(Margarita: Los Robles; San Antonio; Laguna Dulce, Macanao; Porlamar); 



vol. 2 (The Hague), p. 104, 1940. 



Holotype. — Adult male, skin and skull, U.S.N.M. No. 63217; col- 

 lected July 1, 1895, by Wirt Robinson; original number 369. 



Type locality. — Isla de Margarita, Venezuela. 



Distribution.— Common thi-oughout Margarita Island. 



Characters. — A large pale rufous-naped cottontail. Superficially 

 as in superciliaris but head paler, ear slightly shorter; side of face as 

 in continentis, rostral patch warmer; cottony-white under surface of 

 tail more frequently washed with buffy than in superciliaris. Skull 



