On a new Spcr'ies of Monkey. 341 



animals, verv irascible. When it is vexed it bristles up the 

 hair on its neck, that increases its rcstmblance to the African 

 lion. I have seen but two individuals of this very rare mon- 

 key : they were the first that had been brought living to the 

 west of the Cordellior. They were kept in a cage ; and their 

 movements were so rapid and so continual, that I had rpuch 

 difficulty to design them. Their hissing imitates the song 

 of little birds, and I suppose that the conformation of their 

 larynx (having a particular sac) is analogous to that which 

 I have described in the sbnia cedipiis. I have been assured, 

 tha;t in the cottages of the Indians of Mocoa the leoncito 

 breeds in the domestic state. By the way of Grand- Para 

 and the. river of Amazons they might be brought into Eu- 

 rope. If a government, interested in the progress of de- 

 scriptive natural history, would undertake an expedition in 

 which that interest would not be rendered subservient to 

 geographical dlscoveiies ; if that government sent canoes or 

 small boats to ascend the Oronoco, and to penetrate by the 

 Casiquiare and Rio Negro to the river of An)azons ; in 

 short, if, after having explored the mouths of the Caqueta 

 and Putumayo, it would make these same boats descend to 

 Grand-Para, it would in a little time unite collections the 

 most precious to the study of zoology and bot&ny. Such ari 

 expedition would be of little expense, and its success certain. 



SIMIA LEOxNlNA. 



I^x olivaceo fuscescens, facie atra, ore alio, dorso striis 

 albo-Jiavescentilus notato. 

 Caput parvum, deprcssum, nigrescens. Facies anthropo- 

 morpha, atra ; macula albo-coerulescens circa os et nares. 

 Auriculas subtriangulares distantes, margine superiori de- 

 flexo, magr;£e, aterrimae, pilosae. Corpus ex badio oliva-- 

 ccum, pilis nigro-annulatls, in coUo longioribus. Dorsum 

 maculis et sfrils albo-flavescentibus variegatum. Cauda nori 

 prehensllis, longiiudine corporis, superne atra, infcrne badia, 

 apice incurva tt iucrassata. Manus et pedes atcrrinii, in- 

 fcrne nudi, pollice jn nianibus anterioribus et posteriorbus 

 distante. Ungues acuti, incurvi, <itri; pollicis ungue in ma- 

 nibus anterioribus oblongo, acuto, in nianibus posterioribus 

 (pedibus) obtuso, anthropomorpho. 



y 3 LXII. Ana- 



