EINAR LÖNNBERG, MAMMALS FROM ECUADOR. 3 



Total length of skull 114,5 mm. 



Occipitonasal » » 96 » 



Postorbital width 42,5 » 



Width of brain case 50 » 



Zygomatic width 09,5 » 



Condylobasal length of skull 103 -> 



Mesial length of näsa Is ......... 22 » 



Upper molar series 29 » 



Lower » » 38,5 » 



Should, however, these dimensions prove to be constant 

 among the Red Howling Monkeys along Napo river it un- 

 doubtedly indicates a somewhat dwarfed race there. 



Pitliecia iiioiiachus E. Geoff. 



1 ^, '^i 1921, near river Napo, 2000 f. alt.; 1 female 

 specimen bought from Indians without skull, ^g 1921, at the 

 same river, 2500 alt. Consul Söderström has also added on 

 the label, that this monkey oceurs as well along Napo as 

 along Curaray river and also below Macas. 



Also in this case the skull measurements are smaller than 

 those recorded by Elliot in the »Review of Primates», al- 

 though my specimen is an adult male. 



Condj^lobasal length of skull 65 mm. 



Occipitonasal » » » 76 » 



Zygomatic width 53 » 



Width of brain case .... 45 » 



Upper molar series .... 20 » (iarger than Elliot's) 



Lower » » .... 23 » » » » 



The fact that the last two measurements are Iarger than 

 those recorded by Elliot appears to indicate, that he has 

 had an old specimen with worn teeth as type for the de- 

 scription. 



Callicebus cupreus iiapoleoii n. subsp. 



1 /, 



2 specimens collected near the river Napo resp. 1920 and 

 /s 1921, alt. 2500 f. These small monkeys resemble mostly 



