244 Dr. D. G. Elliot on apparently new 



XXX. — Descriptions of apparently new Species and Subspecies 

 of Monkeys of tlie Genera Callicebus, Lagothrix, Papio, 

 Pithecus, Cercopithecus, Erythrocebus, ««<;? Presbytis. By 

 D. G. Elliot, D.Sc, F.R.S.E., &c. 



The various species and subspecies described iu this paper 

 are all, witli one exception, contained in the magnificent 

 collection of Primates iu the British Museum. Some of 

 these new forms I saw in my previous investigations of the 

 collection, but did not describe them at the time, preferring 

 to wait until additional material, if it existed, could be 

 examined in continental museums. 



With his usual kindness and generous method of acting 

 towards a colleague, my friend Mr. Oldtield Thomas repeated 

 the desire he expressed on a former occasion that I should 

 describe any example I considered to be unknown ; and it 

 is in fulfilment of this wish that I appear as the author of 

 this paper. 



The collection of Primates in the British Museum, under 

 the wise management of Mr. Thomas, as Head of the Depart- 

 ment of Mammals, has increased materially during the 

 past two years, and in numerous genera in the number of 

 species and examples is probably the richest in the world, 

 and so offers the most favourable opportunities for critical 

 investigation. 



The types, with one exception, the numbers of which are 

 given in this paper, will be found in the collection, for 

 future examination. 



I desire, in conclusion, to express my thanks to Mr. Thomas 

 for his kindness and assistance afforded me in my by no 

 means easy task. 



Family Cebidse. 



Genus Callicebus. 



Callicebus panulatus, sp. n. 



Type locality. Andoas, on the Pastasa River, Ecuador. 



Gen. char. Far very long, thick, and fluffy ; mantle 

 uniform colour, distinct from back ; arms from elbows, 

 hands, feet, and legs above knees uniform colour. 



Colour. Forehead grizzled oehraceous, the hairs black, with 

 ochraceous tips, this being the dominant colour ; crown 

 and occiput rich cinnamon-rufous, this colour produced by 

 the tips of the hairs ; mantle uniform tawny ochraceous, 

 extending behind shoulders ; middle of back dark hair-brown, 



