﻿102 
  CEBUS 
  

  

  brown; 
  sides 
  of 
  body 
  and 
  arms 
  to 
  elbows, 
  and 
  front 
  of 
  forearms 
  and 
  

   thighs 
  orange 
  yellow 
  ; 
  front 
  of 
  thighs 
  and 
  legs 
  below 
  knees, 
  inner 
  side 
  

   of 
  forearms, 
  hands 
  and 
  feet 
  black; 
  throat 
  and 
  under 
  parts 
  orange 
  

   yellow 
  ; 
  tail, 
  basal 
  fourth 
  beneath 
  orange 
  yellow, 
  rest 
  above 
  and 
  beneath 
  

   blackish 
  brown. 
  Skull 
  in 
  specimen. 
  Ex 
  type 
  ? 
  Spix, 
  Munich 
  Museum. 
  

   Measurements. 
  Skull, 
  not 
  of 
  type 
  : 
  total 
  length, 
  88 
  ; 
  occipito-nasal 
  

   length, 
  85 
  ; 
  zygomatic 
  width, 
  55 
  ; 
  intertemporal 
  width, 
  38 
  ; 
  median 
  

   length 
  of 
  nasals, 
  1 
  1 
  ; 
  length 
  of 
  upper 
  molar 
  series, 
  18 
  ; 
  length 
  of 
  

   mandible, 
  50; 
  length 
  of 
  lower 
  molar 
  series, 
  23. 
  juv. 
  c 
  f. 
  Leyden 
  Museum 
  

   specimen. 
  

  

  This 
  is 
  a 
  pale 
  yellow 
  brown 
  monkey 
  with 
  rather 
  long 
  hair 
  on 
  the 
  

   top 
  of 
  the 
  head, 
  which 
  probably 
  could 
  be 
  erected 
  at 
  the 
  will 
  of 
  the 
  

   animal, 
  but 
  which 
  would 
  never 
  exhibit 
  tufts 
  like 
  C. 
  cirrifer 
  or 
  others 
  

   of 
  the 
  tufted 
  group, 
  but 
  probably 
  would 
  exhibit 
  these 
  in 
  a 
  moderate 
  

   degree. 
  There 
  are 
  two 
  specimens 
  in 
  the 
  Munich 
  Museum 
  both 
  marked 
  

   'Type/ 
  and 
  which 
  differ 
  somewhat 
  in 
  color. 
  One, 
  the 
  smaller 
  is 
  

   described 
  above 
  ; 
  the 
  other 
  and 
  larger 
  animal, 
  has 
  the 
  limbs, 
  hands 
  and 
  

   feet 
  brown, 
  more 
  as 
  shown 
  in 
  Spix's 
  figure, 
  although 
  in 
  his 
  description 
  

   he 
  states, 
  speaking 
  of 
  "Les 
  poils," 
  "ceux 
  des 
  mains 
  et 
  des 
  pattes 
  sont 
  

   entierement 
  noirs 
  et 
  tres 
  courts." 
  Whether 
  this 
  difference 
  in 
  color 
  

   is 
  caused 
  by 
  age 
  or 
  sex 
  it 
  is 
  difficult 
  to 
  say, 
  but 
  both 
  examples 
  seem 
  to 
  

   be 
  adult. 
  I 
  have 
  selected 
  the 
  one 
  agreeing 
  with 
  Spix's 
  description, 
  

   though 
  not 
  with 
  his 
  figure, 
  as 
  probably 
  the 
  best 
  representative 
  of 
  the 
  

   species. 
  

  

  Cebus 
  fatuellus 
  (Linnaeus). 
  

  

  Simla 
  fatuellus 
  Linn., 
  Syst. 
  Nat., 
  I, 
  1766, 
  p. 
  42; 
  Bodd., 
  Elench. 
  

  

  Anim., 
  1784, 
  p. 
  62; 
  Schreb., 
  Saugth., 
  I, 
  1775, 
  p. 
  118, 
  pi. 
  

  

  XXVIIB 
  ; 
  Audeb., 
  Hist. 
  Nat. 
  Singes 
  et 
  Makis, 
  1797, 
  Fam. 
  V, 
  

  

  Sec. 
  Ill, 
  p. 
  1, 
  pi. 
  I. 
  

   Cebus 
  fatuellus 
  Erxl., 
  Syst. 
  Reg. 
  Anim., 
  1777, 
  p. 
  51 
  ; 
  E. 
  Geoff., 
  

  

  Ann. 
  Mus. 
  Hist. 
  Nat. 
  Paris, 
  XIX, 
  1812, 
  p. 
  109; 
  Id. 
  Cours 
  

  

  Hist. 
  Nat. 
  Mamm., 
  1828, 
  p. 
  8, 
  lOme 
  Lecon; 
  Kuhl, 
  Beitr. 
  

  

  Zool., 
  1820, 
  p. 
  32; 
  Desm., 
  Mamm., 
  1820, 
  p. 
  84; 
  Fisch., 
  Syn. 
  

  

  Mamm., 
  1829, 
  p. 
  45; 
  Less., 
  Spec. 
  Mamm., 
  1840, 
  p. 
  139; 
  

  

  Wagn., 
  Schreb., 
  Saugth. 
  Suppl., 
  I, 
  1840, 
  p. 
  209 
  ; 
  V, 
  1855, 
  p. 
  

  

  84; 
  Flow., 
  Proc. 
  Zool. 
  Sbc. 
  Lond., 
  1865, 
  p. 
  333; 
  Schleg., 
  Mus. 
  

  

  Pays-Bas, 
  Simise, 
  1876, 
  p. 
  207; 
  Forbes, 
  Handb. 
  Primates, 
  I, 
  

  

  1894, 
  p. 
  211, 
  (Part). 
  

   Cebus 
  buffoni 
  Less., 
  Spec. 
  Mamm., 
  1840, 
  p. 
  140. 
  

  

  