﻿AOTUS 
  13 
  

  

  limbs 
  brownish 
  gray 
  ; 
  chin 
  and 
  throat 
  buffy 
  gray 
  ; 
  under 
  parts 
  of 
  body 
  

   orange 
  buff 
  ; 
  hands 
  and 
  feet 
  black 
  ; 
  tail 
  at 
  base 
  above 
  and 
  beneath 
  red 
  

   like 
  dorsal 
  region, 
  at 
  root 
  beneath 
  chestnut, 
  the 
  red 
  gradually 
  merges 
  

   into 
  black 
  on 
  apical 
  third, 
  though 
  the 
  hairs 
  retain 
  the 
  red 
  from 
  the 
  

   roots 
  to 
  the 
  tip. 
  Ex 
  type 
  British 
  Museum. 
  

  

  Measurements. 
  Total 
  length, 
  710; 
  tail, 
  370; 
  foot, 
  80. 
  Skull: 
  

   intertemporal 
  width, 
  30.5; 
  width 
  of 
  braincase, 
  32; 
  Hensel, 
  41.3; 
  zygo- 
  

   matic 
  width, 
  38.8; 
  median 
  length 
  of 
  nasals, 
  14.1 
  ; 
  palatal 
  length, 
  17.5; 
  

   length 
  of 
  upper 
  molar 
  series, 
  16 
  ; 
  length 
  of 
  mandible, 
  37.8 
  ; 
  length 
  of 
  

   lower 
  molar 
  series, 
  17; 
  occipital 
  region 
  of 
  skull 
  gone. 
  Ex 
  type 
  British 
  

   Museum. 
  

  

  This 
  species 
  is 
  remarkable 
  for 
  its 
  thick 
  woolly 
  fur, 
  suitable 
  for 
  an 
  

   animal 
  dwelling 
  upon 
  high 
  mountains. 
  It 
  is 
  peculiar 
  also 
  in 
  not 
  having 
  

   the 
  lateral 
  black 
  lines 
  on 
  head 
  meeting 
  in 
  the 
  rear, 
  but 
  stopping 
  outside 
  

   of 
  the 
  crown. 
  

  

  Mr. 
  Frank 
  M. 
  Chapman 
  during 
  his 
  Expedition 
  to 
  Colombia 
  in 
  

   1911, 
  obtained 
  a 
  flat 
  skin 
  of 
  this 
  species 
  from 
  a 
  native 
  on 
  the 
  Toche 
  

   River, 
  Central 
  Andes, 
  Province 
  of 
  Tolima, 
  at 
  an 
  elevation 
  of 
  approx- 
  

   imately 
  7,000 
  feet. 
  

  

  AOTUS 
  VOCIFERANS 
  (Spix). 
  

  

  Nyctipithecus 
  vociferans 
  Spix, 
  Sim. 
  et 
  Vespert. 
  Bras., 
  1823, 
  p. 
  25, 
  

   pi. 
  XIX 
  ; 
  Less., 
  Spec. 
  Mamm, 
  1840, 
  p. 
  171 
  ; 
  Wagn., 
  Abhandl. 
  

   Bay. 
  Akad., 
  V, 
  1848, 
  p. 
  445 
  ; 
  Wagn., 
  Schreb., 
  Saugth. 
  Suppl., 
  

   V, 
  1855, 
  p. 
  108; 
  Reichenb., 
  Vollstand. 
  Naturg. 
  Affen, 
  1862, 
  

   p. 
  20, 
  fig. 
  53; 
  Schleg., 
  Mus. 
  Pays-Bas, 
  Simiae, 
  1876, 
  p. 
  214; 
  

   Alston, 
  Biol. 
  Amer. 
  Centr., 
  I, 
  Mamm., 
  1879, 
  p. 
  14. 
  

  

  Cebus 
  vociferans 
  Fisch., 
  Syn. 
  Mamm., 
  1829, 
  p. 
  55. 
  

  

  Nyctipithecus 
  lemurinus 
  I. 
  Geoff., 
  Compt. 
  Rend., 
  XVI, 
  1843, 
  p. 
  

   1151 
  ; 
  Id. 
  Archiv. 
  Mus. 
  Paris, 
  IV, 
  1844, 
  p. 
  25, 
  pi. 
  XI 
  ; 
  Id. 
  Voy. 
  

   Venus, 
  1840-1855, 
  Mamm., 
  t. 
  3, 
  fig. 
  2; 
  I. 
  Geoff., 
  Cat. 
  Pri- 
  

   mates, 
  1851, 
  p. 
  39; 
  Dahlb., 
  Stud. 
  Zool. 
  Fam. 
  Anim. 
  Nat., 
  

   fasc. 
  I, 
  1856, 
  pp. 
  148, 
  149; 
  Reichenb., 
  Vollstand. 
  Naturg. 
  

   Affen, 
  1862, 
  p. 
  19, 
  fig. 
  52 
  ; 
  Gray, 
  Cat. 
  Monkeys, 
  Lemurs 
  and 
  

   Fruit-eating 
  Bats, 
  Brit. 
  Mus., 
  1870, 
  p. 
  58; 
  Sclat., 
  Proc. 
  Zool. 
  

   Soc. 
  Lond., 
  1872, 
  p. 
  3. 
  

  

  Nyctipithecus 
  trivirgatus 
  Tschudi, 
  Faun. 
  Peruan., 
  1844, 
  p. 
  49, 
  (nee 
  

   Humboldt). 
  

  

  Aotus 
  vociferans 
  Elliot, 
  Mamm. 
  Middle 
  Amer. 
  and 
  W. 
  Indies, 
  

   F. 
  C. 
  M. 
  Pub., 
  IV, 
  Pt. 
  II, 
  1904, 
  p. 
  729, 
  Zool. 
  Ser. 
  ; 
  Id. 
  Check- 
  

  

  