AOTUS 3 



1855. Wagner, Schreber, Die Sdugthiere in Abbildungen nach der 

 Natur mit Beschreibungen, Supplcmentband. 

 Five species are included in N yctipithecus : (N.) felinus = A. 



INFULATUS; (A''.) INFULATUS; {N .) TRIVIRGATUS ; (iV.) 



osERYi; and {N.) vociferans. 

 1857. Pucheran, in Revue et Magasin de Zoologie. 



AoTus SPixi first described as Nyctipithecus spixi. 

 1862. Reichenbach, Die Vollstdndigste Naturgeschichte der Aifen. 



The species of Aotus is, in this work, placed in Nyctipithecus 



as follows: (A'^.) trivirgata; {N.) felinus — A. infulatus; 



(N.) OSERYI ; (A''.) lemurinus — A. vociferans; (N.) spixi; 



(N.) VOCIFERANS. 



1870. /. E. Gray, Catalogue of Monkeys, Lemurs and Fruit-eating 

 Bats, in the Collection of the British Museum. 

 Four species are included in the genus Nyctipithecus: (N.) 

 miriquouina; (A'^.) trivirgatus; (A'^.) commersoni = A. 

 INFULATUS; and (N.) lemurinus = A. vociferans. 



1872. Sclater, in Proceedings of the Zoological Society of London. 

 AoTUS rufipes first described as Nyctipithecus ruHpes. 



1876. Schlegel, Museum d'Histoire Naturelle des Pays-Bas, Simice. 



Three species are given in this work under the genus Nycti- 

 pithecus as distinct: (N.) azar^; (A'^.) trivirgatus; and 

 (A''.) vociferans. a. rufipes (Sclat.), and A. oseryi 

 (Geoff.), are considered synonyms of A. vociferans. 



1907. D. G. Elliot, in Annals and Magazine of Natural History. 

 Actus boliviensis is first described. 



1909. G. Dollman, in Annals and Magazine of Natural History. 



In this paper six species of Aotus are described for the first 

 time, viz. : A. roberti ; A. nigriceps ; A. senex ; A. gularis ; A. 

 lanius and A. microdon. 



1912. D. G. Elliot, in Bulletin of the American Museum of Natural 

 History, New York. 

 Actus griseimembra first described. 



GEOGRAPHICAL DISTRIBUTION OF THE SPECIES. 



With one exception, A. rufipes from Nicaragua, Central America, 

 whose habitat is somewhat doubtful, the species of this genus are found 

 only in South America, and are distributed across the continent from 

 the Atlantic to the Pacific Ocean. Of the known species A. trivir- 

 gatus seems to have the widest distribution, and is found from Guiana 



