1904.] Allen, Mammals from Santa Marta, Colombia. 4^5 



"HOWLING MONKEY. This is found both in the dry 

 forest and mountain forest, ranging, apparently, to about 

 4500 feet; but it is more common near the coast. Howlers 

 go in bands, commonly of five or six, led by an old male; they 

 travel among the higher branches, rarely approaching the 

 ground, and the males keep up a continuous rumbling cry, 

 which may be heard sometimes at a distance of a mile or more. 

 This sound is often heard at night, and it is evident that the 

 animals travel then, though perhaps not when it is very dark. 



"Of all American monkeys the howlers are the most in- 

 tractable in captivity; we have tried to tame young ones, 

 but they always showed resentment and fear, refused their 

 food, and soon died. A Cebus or spider monkey, with the same 

 treatment, becomes tame in a few days. 



"The Santa Marta male howlers have the scrotum snow- 

 white , a singular and striking sexual mark. I do not remem- 

 ber to have observed this in any of the Brazilian howlers, but 

 I may have forgotten it. In other respects this species looks 

 much like the red howler of the Amazon." - H. H. S. 



7 7 . Aotoes lemurinus (Is. Geoff roy) . Two specimens, Bonda, 

 Nov. 18, and Valparaiso, June 29. The former, No. 14567, 

 has been mounted, so that the skull is not available for ex- 

 amination; the latter, No. 15483, a young female, is much 

 grayer and less rufous. 



That the Santa Marta specimens are not Aotoes felinus 

 (Spix) is evident from the color of the throat and fore neck, 

 which is gray, in abrupt contrast with the rest of the ventral 

 surface, instead of orange, uniform with the ventral surface, 

 as in A. felinus. 



The type locality of Is. Geoffrey's Nyctipithecus lemurinus 

 was Santa F de Bogota, Colombia, and the species is repre- 

 sented in the Museum collection by a mounted topotype, in 

 excellent preservation, purchased many years since from the 

 Verreaux Brothers of Paris. Geoffroy described the species 

 (Arch, du Mus., IV, 1844, p. 24, pi. ii), "d'apres les peaux et 

 les cranes de plusieurs individus des deux sexes et de diffe'- 

 rents ages, que le Museum d'histoire naturelle avait recus de 

 Santa Fe de Bogota." He noted considerable variability in 



[November, iqo4\ 



