238 CALLICEBUS 



Urucurituba, Santarem, on the Lower Amazon, C. hoffmannsi was 

 procured, and from near the last mentioned town, C. remulus was 

 obtained, and from Para C. emili^ was received. On the east coast 

 from the Rio St. Mattheus to Sertem de Bahia C. melanochir is met 

 with ; and on the banks of the Rio Para near the mouth of the Rio 

 Tapajos, and also according to Schlegel (1. c.) at Aveyros on the Lower 

 Amazon, C. moloch dwells. Near Ilheos south of Bahia C. gigot has 

 been procured, and this species goes as far to the south as New Frei- 

 bourg (Schlegel), between the Rio Parahyba and the mountains to the 

 north of the Bay of Rio de Janeiro. Near the last named city extend- 

 ing northward to the banks of the Rio St. Mattheus (Wied), and on 

 the Rio Doce C. personatus ranges, and according to Tschudi, (1. c.) 

 it is also found in Peru between 12° and 14° South Latitude. In the 

 Provinces of Minas Geraes and Rio de Janeiro C. nigrifrons ranges. 

 The most southern locality for any member of the genus is Chaco in 

 Paraguay, where C. pallescens has been taken. On the middle 

 Amazon near Teffe or Ega, C. egeria occurs ; while at the Falls of 

 Bonaneira, Rio Marmore, C. brunneus was procured ; and near Borba 

 on the Rio Madeira, C. caligatus was obtained. On the Rio Solimoens 

 and thence into Peru in the forests of the Rio Ucayali and Rio Huallaga, 

 also on the Rio Copataza, and at Andoas in Ecuador, C. cupreus 

 occurs, and on the banks of the Rio Potomaico, on the borders of 

 Peru, C. cinerascens was procured. From some unknown locality, 

 supposedly in Brazil, C. ustofuscus came. In Colombia near Bogota 

 C. ornatus was met with. At Andoas, on the Rio Pastasa in Ecuador, 

 C. p^nulatus occurs, and also in the same State its locality unknown, 

 C. LEUCOMETOPA was obtained. Finally in Peru, at Pachite on the 

 Rio Ucayali, C. subrufus occurs, and in the Province of Sara, Central 

 Bolivia, C. donacophilus is found. As may be seen from the above 

 recapitulation, the entire range of a number of species is not yet known, 

 and doubtless, in numerous instances, they are considerably greater 

 than those given. 



KEY TO THE SPECIES. 



A. Tail black. 



o. Under parts red C. torquatus. 



b. Under parts black C. amictus. 



B. Tail grayish and black. 



a. Hairs on ears dark claret brown C. ustofuscus. 



b. Hairs on ears reddish. 



