INTRODUCTION Ixxxv 



Callithrix. , 



Range of the Genus. ' 



Neotropical Region. 

 Range of the Species. 



136. Callithrix argentata. Provinces of Para and Matto Grosso, 



Brazil ; Bolivia. 



137. Callithrix leucopus. Province of Antioquia, Colombia. 



138. Callithrix chrvsoleuca. Borba, on the Lower Madeira 



River, Brazil. 



139. Callithrix gceldi. Para, Brazil. 



140. Callithrix santaremensis. Mouth of River Tapajos, Amazon. 



141. Callithrix aurita. Province of Sao Paulo, and the banks of 



the Upper Parana, Brazil. 



142. Callithrix penicillata. Province of Goyas, Minas Geraes, 



and Espirito Santo, Brazil. 



143. Callithrix p. jordani. Banks of Rio Jordao, S. W. Minas 



Gerses, Brazil. 



144. Callithrix jacchus. Island of Marajo, Brazil. 



145. Callithrix flaviceps. Engenheiro Reeve, Espirito Santo, 



Brazil. 



146. Callithrix leucocephala. Provinces of Minas Geraes, and 



Espirito Santo, Brazil. 



147. Callithrix humeralifer. Vicinity of Bahia, to the Bay of 



Todos OS Santos, Brazil. 



148. Callithrix albicollis. Vicinity of Bahia, Brazil. 



149. Callithrix pygm^a. Forests along the Solimoens and Ucayali 



Rivers, Brazil, north into Mexico. 



Callicebus. 



Range of the Genus. 



Neotropical Region. 



Range of the Species. 



150. Callicebus torquatus. Upper reaches of the Rio Negro, the 



forests near the Rio Cassiquiare, and the Rio Guaviare 

 near St. Fernando de Atabapo ; mountains on the right 

 bank of the Orinoco near Mission of Santa Barbara ; and 

 the forests of Olivenga on the right bank of the Rio 

 Solimoens ; and in Southern Peru. 



