﻿354 PROCEEDINGS OF THE NATIONAL MUSEUM vol. loo 



Ochraceous-Orange, interspersed with white guard hairs, inner side 

 more white; upper surface of forefoot more Tawny; upper surface of 

 hind foot mixed Ochraceous-Orange and white. Hairs of tail Tawny 

 terminally, dark gray basally. Chest, belly, inner surface of hind leg, 

 midventral line of forearm, white. White of chin and throat defined 

 by a thin black line. Collar mixed Warm Buff and Cinnamon -Buff. 

 Hairs of pubic region Ochraceous-Buff terminally, dark gray basally. 



Coloration of paratypes (5 males, 2 females). — Two males are im- 

 mature, one, an adult, is represented by skull and skin of head only. 

 Paratypes with nuchal patch Ochraceous-Orange, average a tone paler 

 than holotype. One adult male with tips of hairs of back dark brown 

 instead of black, tips of hans of sides even paler. Another male, not 

 quite fully adult, extremely pale and buffy-gray in over-all appearance. 

 Back of an old female heavilj'' lined with black, cover hairs of sides 

 Cartridge Buff with black tipping reduced and disappearing toward 

 under side. Kemaining female with black more evenly distributed. 



The holotype is the only fully adult specimen with both skin and 

 skull in good condition. 



Bio Guaimaral (3 males, 5 females). — Two males and one female are 

 subadults. More warmly and more uniformly colored than the para- 

 types. Subterminal bands of cover hairs of back from Ochraceous- 

 Buff to Cinnamon-Buff; hairs of outer anterior edge of ear average 

 darker, upper surface of hind foot more uniformly ocliraceous than 

 in type series. 



Measurements. — Those of the holotype, followed by those of a fe- 

 male and male paratype, respectively: Total length, 385, 383, 349; 

 tail, 33, 29,-; hind foot, 76, 75, 68; ear, dry from notch, 53, 55, 50; 

 condylobasal length, 68.9, 62.0, 62.5; zygomatic breadth, 34.4, 32.4, 

 32.7; length of nasals, 29.4, 28.0, 25.9; greatest combined width of 

 nasals across premaxillary sutures, 13.0, 13.0, 11.3; least length of 

 palatal bridge, 8.0, 7.2, 7.2; greatest width between outer sides of 

 maxillary plates of tooth rows, 23.1, 21.5, 20.6; alveolar length of 

 maxillary tooth row, 15.3, 13.7, 13.5. Of one male and three females 

 from Kio Guaimaral, respectively: Total length 308, 369, 358, 341; 

 tail, 25, 35, 32, 25; hind foot, 70, 81, 85, 69; ear, dry from notch, 52, 

 50, 50, 50; condylobasal length, 54.2, 62.0, 61.0, 57.0; zygomatic 

 breadth, 30.6, 33.0, 31.9, 31.9; length of nasals, 23.9, 26.9, 26.0, 24.7; 

 greatest combined width of nasals across premaxillary sutm-es, 10.7, 

 13.4, 12.3, 11.6; least length of palatal bridge, 6.6, 7.6, 7.3, 6.9; 

 greatest width between outer sides of maxUlary plates of tooth rows, 

 19.4, 22.2, 20.6, 20.6; alveolar length of maxillary tooth row, 11.9, 

 13.4, 13.0, 12.5. 



i?ewarZ:s.— These, the first tapitis to be recorded from northern 

 Colombia, include the only specimens known from the lowlands of this 

 country. They fill the erstwhile distributional gap between South 



