ALOUATTA 283 



lustre ; limbs, hands and feet, bright red with a maroon tinge on fore- 

 arms; tail at root bright maroon grading into golden and growing 

 paler at the tip. Ex type British Museum. 



Measurements. Total length, 1,120; tail, 600; foot, 105; no skull. 



This red Howler in general appearance resembles somewhat the 

 form from the Juara River in the western portion of South America, 

 but is considerably smaller in size, has not so much of the golden color 

 of the body, and the limbs and tail are much paler, more the hue of the 

 body. It is even more entitled to the name of Red Howler than is the 



A. JUARA. 



Alotjatta juara Elliot. 



Alouatta juara Elliot, Ann. Mag. Nat. Hist., V, 8th Ser., 1910, 

 p. 80. 



GOLDEN HOWLER. 



Type locality. Rio Juara, Upper Amazon. Type in British 

 Museum. 



Genl. Char. General color golden red ; arms and legs darker. 



Color. Head and whiskers bright maroon, darkest under chin; 

 upper part of body and flanks golden red; arms and legs, hands and 

 feet, maroon darker than body; under parts and inner side of limbs 

 red ; tail maroon at base grading into golden red similar to body. Ex 

 type British Museum. 



Measurements. Total length, 1,145 ; tail, 625 ; foot, 130. Skull : 

 total length, 126.3 ; occipito-nasal length, 104.9 ; intertemporal width, 

 40.2; breadth of braincase, 54.5; Hensel, 106.2; zygomatic width, 81.4; 

 median length of nasals, 25.9; palatal length, 44.3; length of upper 

 molar series, 35.8; length of mandible, 94.8; length of lower molar 

 series, 42.9. Ex type British Museum. 



The peculiarity of this species is its general red color, the bright 

 maroon of the head grading into the golden red of the body without 

 any marked line to separate the hues. Its general aspect is that of a 

 red monkey with dark limbs. The basal half of the tail is maroon, 

 darker than the head, more nearly the color of the thighs, the remainder 

 much lighter. Two specimens are in the British Museum procured on 

 the Rio Juara, Upper Amazon. 



Alouatta sara Elliot. 



Alouatta sara Elliot, Ann. Mag. Nat. Hist., V, 8th Ser., 1910, 

 p. 81. 



