MAMMALS OF NORTHERN COLOMBIA—HERSHKOVITZ 45 
Villanueva* (274 meters), 10°37’ N., 72°58’ W., Magdalena, Colombia. A town 
at the base of the Sierra Negra (Cordillera Oriental) in the upper Rio Cesar 
valley. The region is semiarid with a scattering of low scrubby vegetation. 
There still remain, however, a few isolated stands of deciduous forest which 
once were continuous with the forests of the Magdalena. 
LITERATURE CITED 
ALLEN, GLOVER Morritu. 
1902. The mammals of Margarita Island, Venezuela. Proc. Biol. Soc. 
4 Washington, vol. 15, pp. 91-97. > 
ALLEN, JOEL ASAPH. 
1899. Descriptions of five new American rodents. Bull. Amer. Mus. Nat. 
Hist., vol. 12, pp. 11-17. 
1899. New rodents from Colombia and Venezuela. Bull. Amer. Mus. Nat. 
Hist., vol. 12, pp. 195-218. 
1904. Mammals from the district of Santa Marta, Colombia, collected by 
Mr. Herbert H. Smith, with field notes by Mr. Smith. Bull. Amer. 
Mus. Nat. Hist., vol. 20, pp. 407—468. 
1914. New South American Sciuridae. Bull. Amer. Mus. Nat. Hist., vol. 
33, pp. 585-597, 2 figs. 
1915. Review of the South American Sciuridae. Bull. Amer. Mus. Nat. 
Hist., vol. 34, pp. 147-309, 25 figs., 14 pls. 
Auston, Epwarp R. 
1878. On the squirrels of the Neotropical region. Proc. Zool. Soe. London, 
1878, pt. 3, pp. 656-670, 1 pl. 
Banes, OUTRAM. 
1898. On Sciurus variabilis from the Santa Marta region of Colombia. 
Proc. Biol. Soc. Washington, vol. 12, pp. 183-186. 
1900. List of the mammals collected in the Santa Marta region of Colombia, 
by W. W. Brown, Jr. Proc. New England Zool. Club, vol. 1, pp. 
87-102. 
ELLERMAN, JOHN R. 
1940. The families and genera of living rodents, with a list of named forms 
(1758-1936) by R. W. Hayman and G. W..C. Holt. Vol. 1: Rodents 
other than Muridae, xxvi+689 pp. 189 figs. British Museum 
(Natural History), London. 
Grorrroy Saint Hivarre, Istpore. 
1832. Essai sur le genre Sciurus, et description de six nouvelles espéces. 
. . Mag. Zool., Paris, vol. 2, Cl. I, 2 pls. is 
Gray, JoHN Epwarp. 
1842. Description of some new genera and fifty unrecorded species of mam- 
mals. Ann. Mag. Nat. Hist., vol. 10, pp. 265-267. 
1861. Description of a new squirrel in the British Museum, from New 
Grenada. Proc. Zool. Soc. London, 1861, pt. 1, p. 92, 1 pl. 
1867. Synopsis of the species of American squirrels in the collection of the 
British Museum. Ann. Mag. Nat. Hist., ser. 3, vol. 20, pp. 415-434. 
HuMBOLDT, ALEXANDER DE, and BonpLanp, A. DE. 
1812 (1811). Voyage de Humboldt et Bonpland. Deuxiéme Partie: Recueil 
d’observations de zoologie et d’anatomie comparée, vol. 1, pp. viii+ 
368, 50 pls. 
KeE.ioce, Remineton, and Goipman, E. A. 
1944. Review of the spider monkeys. Proc. U. 8. Nat. Mus., vol. 96, pp. 
1—45, 2 figs. 
