﻿112 
  CEBUS 
  

  

  Genl. 
  Char. 
  Hair 
  on 
  forehead 
  long, 
  upright 
  in 
  tufts. 
  

  

  Color. 
  Middle 
  of 
  forehead 
  between 
  eyes, 
  top 
  and 
  back 
  of 
  head 
  

   black, 
  the 
  hairs 
  reddish 
  brown 
  at 
  'base; 
  sides 
  of 
  forehead 
  over 
  eyes 
  

   and 
  continuing 
  in 
  a 
  narrow 
  line 
  on 
  sides 
  of 
  head 
  to 
  angle 
  of 
  mouth, 
  

   including 
  lower 
  part 
  of 
  cheeks, 
  pale 
  yellow; 
  behind 
  this 
  a 
  blackish 
  

   brown 
  band 
  extends 
  from 
  the 
  top 
  of 
  head 
  passing 
  in 
  front 
  of 
  ears 
  and 
  

   covering 
  whiskers 
  and 
  meeting 
  under 
  the 
  chin 
  ; 
  sides 
  of 
  neck 
  grayish 
  

   brown; 
  a 
  narrow 
  line 
  on 
  back 
  of 
  neck, 
  entire 
  upper 
  parts 
  of 
  

   body, 
  flanks 
  and 
  arms 
  to 
  elbow 
  bright 
  golden 
  brown 
  tinged 
  with 
  red; 
  

   forearms 
  black, 
  hairs 
  tipped 
  with 
  grayish 
  brown; 
  hands 
  brownish 
  

   black; 
  legs 
  dark 
  chestnut 
  red; 
  feet, 
  blackish 
  brown; 
  the 
  ochraceous 
  

   rufous 
  on 
  base 
  of 
  hairs 
  showing 
  on 
  forearms 
  and 
  legs 
  giving 
  them 
  a 
  

   mottled 
  appearance; 
  under 
  parts 
  of 
  body 
  pale 
  yellow, 
  as 
  is 
  also 
  the 
  

   inner 
  side 
  of 
  arms 
  above 
  elbow 
  ; 
  inner 
  side 
  of 
  forearms 
  and 
  legs, 
  black 
  ; 
  

   tail 
  black 
  with 
  a 
  purple 
  gloss, 
  reddish 
  hairs 
  mixed 
  with 
  the 
  black 
  at 
  

   base. 
  Ex 
  type 
  in 
  Paris 
  Museum. 
  

  

  Measurements. 
  In 
  size 
  equal 
  to 
  C. 
  apella 
  (Linn.). 
  Skull 
  in 
  

   type 
  specimen. 
  

  

  The 
  unique 
  type 
  of 
  this 
  specimen 
  is 
  unlike 
  any 
  example 
  of 
  Cebus 
  

   I 
  have 
  ever 
  seen. 
  The 
  entire 
  upper 
  part 
  of 
  the 
  body 
  and 
  arms 
  above 
  

   elbows 
  are 
  chestnut 
  red, 
  a 
  distribution 
  of 
  this 
  color 
  no 
  other 
  species 
  

   possesses. 
  It 
  is 
  most 
  closely 
  allied 
  to 
  C. 
  apella, 
  but 
  the 
  hair 
  on 
  the 
  

   head 
  is 
  longer 
  and 
  the 
  specimen 
  is 
  strikingly 
  different 
  in 
  the 
  color 
  of 
  

   the 
  body. 
  I 
  have 
  no 
  other 
  alternative 
  than 
  to 
  consider 
  this 
  example 
  as 
  

   representing 
  a 
  distinct 
  species, 
  for 
  though 
  mindful 
  of 
  the 
  great 
  varia- 
  

   tion 
  existing 
  in 
  the 
  colors 
  of 
  various 
  species 
  of 
  Cebus, 
  there 
  is 
  none 
  

   known 
  to 
  me 
  to 
  which 
  this 
  specimen 
  can 
  be 
  assigned. 
  A 
  specimen 
  

   procured 
  by 
  Natterer 
  on 
  the 
  Rio 
  Negro, 
  in 
  the 
  Vienna 
  Museum, 
  resem- 
  

   bles 
  somewhat 
  the 
  type 
  of 
  C. 
  crassiceps, 
  differing 
  in 
  not 
  having 
  the 
  

   sides 
  of 
  neck 
  grayish 
  brown, 
  this 
  part 
  being 
  reddish, 
  and 
  the 
  base 
  of 
  

   hairs 
  on 
  forearms 
  and 
  legs 
  are 
  black 
  like 
  the 
  rest 
  and 
  not 
  ochraceous 
  

   rufous, 
  and 
  under 
  parts 
  of 
  body 
  are 
  pale 
  yellowish 
  red, 
  not 
  pale 
  

   yellow. 
  Nevertheless 
  it 
  has 
  a 
  general 
  resemblance 
  to 
  C. 
  crassiceps, 
  but 
  

   is 
  not 
  so 
  red. 
  

  

  Cebus 
  caliginosus 
  Elliot. 
  

  

  Cebus 
  caliginosus 
  Elliot, 
  Ann. 
  Mag. 
  Nat. 
  Hist., 
  V, 
  1910, 
  5th 
  Ser., 
  

  

  p. 
  78. 
  

   Type 
  locality. 
  St. 
  Catarina, 
  Sao 
  Paulo, 
  Brazil. 
  Type 
  in 
  British 
  

   Museum. 
  

  

  