Oil various Sutith- Ainericin Mammals. 34:5 



XLI. — On vuriuiis S 'til/i-Americ in Mammals. 

 By Oldfillu Thoma:?". 



( Publisht-'d by permission of the Trustees of the British Museum.) 



Callicebus lucifer, sp. n. 



Like G. lugens, Humb. (syii. amictus, Geoff.), but the tail 

 cliestuut-rut'ouj iii6tead ot black. Belly black, not red as iu 

 C". torqualus. 



Hab. Eastern IV'ruviaii Amazons. Typo from Yaliuus, 

 N. ot Loreto, about 2° 4L0' S., 70° 3U' W. Alt. oUU'. 



'Type. Adult male. B.M. uo. 1-i. 3. 1. 2. Original 

 number -il. (JoU'iCted Uth August, Jyi3, by Mr. J. J. 

 Mouiisey. Two specimens. 



By some accident tlie synonymies of the yellow-haiiJed 

 titis have got contused in Trot". Elliot's recent great work 

 on the Primates. He calls the red- bellied species C. tor- 

 qualus, putting G. lugens and Saguinus vidua among its 

 ijynonyms, wtnle the black-bellied one he terms andclaa. 

 But a study of the original descriptions of these four animals 

 shows that while torquatus is red-bellied, lugens, amiclus, and 

 vidua are all black-bellied and are clearly synonymous with 

 each other, lugens being the earliest name. Its type-locality 

 is the Upper Orinoco, not Olivenqa, Holimoens, iis stateti, 

 the latter locality being taken from iSpix, whose specimen 

 was probably G. lucifer. 



►Specimens o£ tliis group are very rare in collections, and 

 the British Museum only cuiitains six, tuo of each specico, 

 as follows : — 



G. torqualus. — Adult; llio Negro; bought in 1842; 

 collector unknown. Head and fore limbs: Ega, 

 Amazon ; H. \V. Bates. 



C. lugens. — Young specimen from Maipures, Orinoco, 

 practically a topotype of the species; coll. G. K. 

 (Jherrie. Adult specimen; "Guiana" (no doubt 

 incorrect) ; »Sir K. tSchomburgk. 



C. luciftr. — Type and | uratype from Yaliuas, as abuve. 



Gain mica goeldii, Tlios. 



A young specimen of this reniaikable monkey lias been 

 received at the Para Z)ological Gardens from the Uio Xapury, 

 an affluent ot* the Kio Acre, Upper Kio Purus, and on us 

 death has been sent to me for examination. 



