﻿106 
  CEBUS 
  

  

  Genl. 
  Char. 
  Hair 
  on 
  head 
  very 
  thick, 
  long, 
  depressed 
  in 
  the 
  

   center, 
  and 
  rising 
  on 
  each 
  side 
  in 
  broad 
  ridges 
  extending 
  from 
  forehead 
  

   to 
  occiput, 
  unlike 
  horns 
  or 
  tufts 
  ; 
  size 
  large 
  ; 
  tail 
  long, 
  thick 
  ; 
  hairs 
  of 
  

   body 
  long, 
  loose 
  ; 
  arms 
  above 
  elbows 
  pale 
  ; 
  fingers 
  and 
  toes 
  gray. 
  

  

  Color. 
  Male. 
  Top 
  of 
  head 
  from 
  forehead 
  to 
  nape 
  extending 
  to 
  

   hind 
  neck, 
  black; 
  temples 
  and 
  cheeks 
  yellowish 
  white; 
  dark 
  brown 
  

   band 
  in 
  front 
  of 
  ear 
  down 
  face 
  to 
  lower 
  jaw, 
  not 
  meeting 
  beneath; 
  

   dorsal 
  region 
  Prout's 
  brown; 
  rest 
  of 
  upper 
  parts 
  and 
  flanks 
  bistre; 
  

   arms 
  above 
  elbows 
  and 
  sides 
  of 
  neck, 
  cream 
  buff; 
  thighs 
  ochraceous 
  

   buff 
  ; 
  forearms 
  and 
  legs 
  below 
  knees 
  black 
  ticketed 
  with 
  reddish, 
  most 
  

   numerous 
  on 
  forearms; 
  throat, 
  chest, 
  under 
  parts 
  to 
  scrotum, 
  inner 
  

   side 
  of 
  arms 
  above 
  elbows, 
  and 
  innermost 
  side 
  of 
  thighs 
  golden 
  yellow 
  ; 
  

   inner 
  side 
  of 
  forearms, 
  outer 
  portion 
  of 
  thighs 
  and 
  legs 
  below 
  knees, 
  

   scrotum 
  and 
  anal 
  region 
  black 
  ; 
  hands 
  and 
  feet 
  black, 
  fingers 
  and 
  toes 
  

   covered 
  with 
  gray 
  hairs 
  ; 
  tail 
  above, 
  three 
  fourths 
  black 
  speckled 
  with 
  

   red, 
  remainder 
  black, 
  beneath 
  brownish 
  black, 
  hairs 
  pale 
  yellow 
  at 
  base 
  

   then 
  brownish 
  black, 
  or 
  towards 
  tip 
  grayish 
  white 
  at 
  base, 
  then 
  black. 
  

  

  Measurements. 
  Total 
  length, 
  910; 
  tail, 
  460: 
  foot, 
  132; 
  ear, 
  35, 
  

   (Collector). 
  Skull: 
  total 
  length, 
  94.1; 
  occipito-nasal 
  length, 
  81.7; 
  

   intertemporal 
  width, 
  41.6; 
  breadth 
  of 
  braincase, 
  52.5; 
  Hensel, 
  63.8; 
  

   zygomatic 
  width, 
  70.3; 
  palatal 
  length, 
  32.1; 
  median 
  length 
  of 
  nasals, 
  

   28.1 
  ; 
  length 
  of 
  upper 
  molar 
  series, 
  23.5 
  ; 
  length 
  of 
  mandible, 
  64.5 
  ; 
  

   length 
  of 
  lower 
  molar 
  series, 
  28.3. 
  

  

  This 
  species 
  belongs 
  to 
  the 
  Azara 
  group 
  as 
  indicated 
  by 
  the 
  gray 
  

   fingers 
  and 
  toes. 
  It 
  is, 
  however, 
  a 
  much 
  darker 
  animal 
  than 
  either 
  C. 
  

   azaile 
  or 
  C. 
  a. 
  pallidus. 
  The 
  patch 
  on 
  the 
  head 
  is 
  more 
  extensive, 
  

   heavier 
  and 
  blacker 
  than 
  that 
  of 
  C. 
  azarje, 
  and 
  of 
  course 
  entirely 
  

   different 
  from 
  that 
  of 
  C. 
  a. 
  pallidus 
  with 
  its 
  two 
  imperfect 
  black 
  

   patches. 
  The 
  black 
  cap 
  of 
  C. 
  azar^e 
  is 
  inclined 
  to 
  lie 
  flat 
  to 
  the 
  head, 
  

   except 
  just 
  in 
  front 
  in 
  most 
  examples, 
  where 
  on 
  each 
  side 
  two 
  low 
  

   ridges 
  can 
  be 
  seen, 
  but 
  some 
  specimens 
  have 
  small 
  tufts 
  over 
  forehead 
  ; 
  

   both 
  styles, 
  however, 
  are 
  quite 
  different 
  from 
  the 
  conspicuous 
  

   ridges 
  of 
  the 
  present 
  species 
  which 
  exhibit 
  the 
  hairs 
  rising 
  close 
  

   together 
  at 
  the 
  forehead, 
  widening 
  as 
  they 
  extend 
  backward 
  until 
  they 
  

   occupy, 
  with 
  the 
  exception 
  of 
  a 
  narrow 
  division 
  in 
  the 
  center, 
  the 
  

   entire 
  occipital 
  portion 
  of 
  the 
  head. 
  The 
  coloring 
  of 
  the 
  two 
  forms, 
  as 
  

   the 
  descriptions 
  show, 
  is 
  quite 
  different. 
  Five 
  specimens 
  were 
  

   procured 
  by 
  Mr. 
  Robert 
  at 
  Araguay, 
  Rio 
  Jordao, 
  western 
  Minas 
  

   Gerses, 
  Brazil, 
  all 
  of 
  which 
  are 
  in 
  the 
  British 
  Museum. 
  

  

  