﻿CEBUS 
  105 
  

  

  LARGE-HEADED 
  CAPUCHIN. 
  

  

  Type 
  locality. 
  Lake 
  Cactua, 
  near 
  the 
  Rio 
  Solimoens. 
  Type 
  in 
  

   Munich 
  Museum. 
  

  

  Geogr. 
  Distr. 
  Rio 
  Negro 
  west 
  of 
  its 
  mouth, 
  (Brazil) 
  ; 
  Lake 
  

   Cactua, 
  (Spix) 
  ; 
  Rio 
  Negro, 
  (Natterer). 
  

  

  Color. 
  Top 
  of 
  head, 
  nape 
  and 
  back 
  of 
  neck 
  black 
  ; 
  hair 
  on 
  head 
  

   very 
  thick, 
  with 
  tufts 
  higher 
  on 
  sides 
  than 
  in 
  the 
  middle, 
  but 
  no 
  horns 
  

   nor 
  real 
  crest 
  present 
  ; 
  arms 
  to 
  elbows, 
  entire 
  upper 
  parts 
  of 
  flanks 
  and 
  

   thighs 
  reddish 
  golden 
  brown, 
  darkest 
  in 
  dorsal 
  regions 
  ; 
  forearms 
  and 
  

   legs 
  below 
  knees 
  black, 
  hairs 
  tipped 
  with 
  rusty 
  blackish 
  ; 
  brown 
  band 
  

   in 
  front 
  of 
  ears 
  extending 
  down 
  sides 
  of 
  face 
  and 
  meeting 
  under 
  the 
  

   chin 
  ; 
  entire 
  under 
  parts, 
  and 
  inner 
  side 
  of 
  arms 
  above 
  elbows 
  ochra- 
  

   ceous 
  rufous; 
  hands, 
  feet, 
  inner 
  side 
  of 
  legs, 
  and 
  anal 
  region 
  black; 
  

   tail 
  above 
  at 
  base 
  like 
  back, 
  remainder 
  black, 
  beneath 
  black. 
  

  

  Measurements. 
  Total 
  length, 
  860; 
  tail, 
  420; 
  foot, 
  120. 
  Skull: 
  

   total 
  length, 
  99.6; 
  occipito-nasal 
  length, 
  85.6; 
  intertemporal 
  breadth, 
  

   41.2; 
  width 
  of 
  braincase, 
  53 
  ; 
  Hensel, 
  71 
  ; 
  zygomatic 
  width, 
  75 
  ; 
  median 
  

   length 
  of 
  nasals, 
  28.8; 
  palatal 
  length, 
  33.1; 
  length 
  of 
  upper 
  molar 
  

   series, 
  22.6; 
  length 
  of 
  mandible, 
  61.5; 
  length 
  of 
  lower 
  molar 
  series, 
  

   26.8. 
  

  

  This 
  species 
  varies 
  greatly 
  even 
  among 
  specimens 
  from 
  the 
  same 
  

   locality. 
  The 
  type 
  represents 
  the 
  paler 
  style, 
  but 
  the 
  majority 
  of 
  

   examples, 
  perhaps, 
  are 
  very 
  much 
  darker 
  with 
  many 
  black 
  hairs 
  

   mingled 
  with 
  the 
  reddish 
  brown, 
  especially 
  on 
  the 
  dorsal 
  region 
  and 
  

   rump. 
  It 
  is 
  a 
  paler 
  species 
  than 
  C. 
  fatuellus 
  which 
  has 
  more 
  of 
  the 
  

   chestnut 
  color 
  on 
  the 
  upper 
  parts 
  of 
  the 
  body 
  ; 
  and 
  the 
  present 
  form 
  

   has 
  no 
  black 
  on 
  the 
  under 
  parts 
  which 
  is 
  characteristic 
  of 
  the 
  adults 
  of 
  

   C. 
  fatuellus. 
  But 
  there 
  is 
  a 
  great 
  deal 
  of 
  variation 
  in 
  both 
  species 
  

   and 
  it 
  is 
  by 
  no 
  means 
  easy 
  occasionally 
  to 
  refer 
  correctly 
  certain 
  

   specimens 
  to 
  their 
  rightful 
  species. 
  Spix 
  in 
  his 
  description 
  speaks 
  of 
  

   a 
  frontal 
  crest, 
  but 
  his 
  plate 
  shows 
  none, 
  and 
  there 
  is 
  none 
  in 
  the 
  

   strict 
  interpretation 
  of 
  the 
  term, 
  but 
  there 
  is 
  a 
  tuft 
  on 
  each 
  side 
  of 
  the 
  

   head 
  from 
  the 
  forehead, 
  and 
  the 
  center 
  or 
  dividing 
  line 
  of 
  these 
  tufts 
  

   is 
  higher 
  than 
  the 
  hair 
  on 
  top 
  of 
  the 
  head 
  behind. 
  

  

  Cebus 
  veesuta 
  Elliot. 
  

  

  Cebus 
  versuta 
  Elliot, 
  Ann. 
  Mag. 
  Nat. 
  Hist., 
  V, 
  8th 
  Ser., 
  1910, 
  

  

  p. 
  77. 
  

   Type 
  locality. 
  Araguay, 
  Rio 
  Jordao, 
  western 
  part 
  of 
  Minas 
  

   Geraes, 
  Brazil. 
  Type 
  in 
  British 
  Museum. 
  

  

  