224 ALLEN'S NATURALIST'S LIBRARY. 



Lagothrix poeppigii, Schinz, Synops. Mamm., i., p. 71 (1844); 

 Pucher., Rev. et Mag de Zool., p. 299 (1857) ; Schl., 

 Mus. Pays Bas, vii., p. 164 (1876). 



Lagothrix geo/royi, Schinz, Synops. Mamm., i., p. 72 (1844). 

 Lagothrix castelnaui, Is. Geoffr. et Deville, C.R., xxvii., p. 498 



(1848); Casteln., Voy. Amer. Sud, Zool., p. 5, pi. i. 

 Lagothrix infumatus, Gray, Cat. Monkeys Brit. Mus., p. 46 

 (1870); Scl, P. Z. S., 1871, p. 219 (Note). 



Characters. Large in size ; face naked, black ; general colour 

 dark reddish-grey, the hairs being reddish-brown at the base, 

 and tipped with grey or black ; head, face and hind hands 

 darker brown ; chest, upper side of fore-arms, and under sur- 

 face of body dark brown, or almost black ; sides of body, base 

 of the tail and perineal region brownish-red ; hair of chest and 

 under surface long and rather rigid. 



Distribution. The Brown Lagothrix, also called "Capparo" by 

 Humboldt, is common in the forests of the low country over the 

 whole of the Valley of the Peruvian Amazons. It has been 

 recorded from the Valley of the Copataza river, and also from 

 Macas, both in Cis-Andean Ecuador. 



Habits. These Monkeys go about in pairs, in troops of about 

 twelve to fourteen, and frequent the great forest trees. They 

 are often found in company with species of other genera, such 

 as the Howlers. They are exclusively fruit-eaters, and are in 

 great request as food ; large numbers, consequently, are de- 

 stroyed annually for this purpose. 



THE WOOLLY SPIDER-MONKEYS. GENUS BRACFIYTELES 

 Brachyteles, Spix, Sim. et Vespert. Brazil, p. 36 (1823). 

 Eriodes, Is. Geoffr., Diet. Class., xv., p. 143 (1829). 



The members pf this genus resemble in general form the 



