﻿342 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol.98 
  

  

  Cebus 
  chrysopus 
  Lesson 
  (1827, 
  p. 
  55). 
  Based 
  on 
  the 
  "sajou 
  a 
  pieds 
  

   dores 
  ou 
  chrysope" 
  of 
  F. 
  Cuvier 
  (1825, 
  pi., 
  2 
  pp.). 
  The 
  specific 
  name 
  

   "Chrysopes" 
  as 
  originally 
  proposed 
  by 
  Cuvier 
  (text, 
  end 
  of 
  second 
  

   page) 
  is 
  nonbinomial; 
  hence 
  the 
  use 
  of 
  Lesson's 
  Cebus 
  chrysopus 
  as 
  the 
  

   earliest 
  acceptable 
  designation. 
  The 
  original 
  description 
  was 
  based 
  on 
  

   a 
  livmg 
  menagerie 
  monkey 
  that 
  Cuvier 
  was 
  able 
  to 
  observe 
  for 
  a 
  few 
  

   days. 
  The 
  type 
  was 
  not 
  preserved. 
  It 
  was 
  said 
  to 
  have 
  originated 
  in 
  

   "I'Amerique 
  septentrionale." 
  I. 
  Geoffroy 
  (1829, 
  p. 
  150) 
  recorded 
  

   specimens 
  of 
  Cebus, 
  collected 
  by 
  Plee, 
  under 
  the 
  name 
  chrysopus. 
  Flee 
  

   had 
  done 
  some 
  collecting 
  along 
  the 
  banks 
  of 
  the 
  Rio 
  Magdalena, 
  

   Colombia, 
  and 
  Geoffroy's 
  description 
  fits 
  the 
  available 
  specimens 
  of 
  

   Cebus 
  from 
  the 
  west 
  bank 
  of 
  that 
  river, 
  opposite 
  the 
  mouth 
  of 
  the 
  Rio 
  

   Cesar. 
  These 
  monkeys, 
  however, 
  differ 
  in 
  many 
  respects 
  from 
  the 
  

   description 
  and 
  colored 
  figure 
  of 
  Cuvier's 
  sajou 
  a 
  pieds 
  dores. 
  Geof- 
  

   froy 
  was 
  followed 
  by 
  others, 
  notably 
  Lesson 
  (1838, 
  p. 
  277), 
  Schlegel 
  

   (1876, 
  p. 
  195), 
  and 
  Elliot, 
  in 
  referring 
  the 
  Plee 
  specimens 
  to 
  chrysopus 
  

   either 
  as 
  a 
  distinct 
  species 
  or 
  as 
  a 
  synonym 
  of 
  C. 
  albifrons. 
  EUiot 
  

   listed 
  the 
  Plee 
  specimens 
  separately 
  under 
  albifrons 
  and 
  a 
  few 
  pages 
  

   later 
  (1913, 
  p. 
  99) 
  described 
  them 
  as 
  representatives 
  of 
  chrysopus. 
  

   Cabrera 
  (1900, 
  p. 
  78) 
  and 
  Lonnberg 
  (1939, 
  p. 
  23) 
  saw 
  some 
  resem- 
  

   blance 
  between 
  specimens 
  from 
  the 
  Amazonian 
  region 
  and 
  the 
  colored 
  

   figure 
  of 
  the 
  sajou 
  a 
  pieds 
  dores. 
  Goeldi 
  and 
  Hagmann 
  (1904, 
  p. 
  48) 
  

   synonymized 
  both 
  chrysopus 
  and 
  gracilis 
  Spix 
  {=unicolor 
  Spix) 
  with 
  

   Cebus 
  albifrons 
  on 
  the 
  basis 
  of 
  specimens 
  believed 
  to 
  have 
  originated 
  in 
  

   the 
  upper 
  Amazonian 
  region. 
  In 
  his 
  review 
  of 
  the 
  species 
  of 
  the 
  genus 
  

   Cebus, 
  Cabrera 
  (1917a, 
  p. 
  229) 
  finally 
  decided 
  that 
  chrysopus 
  was 
  

   probably 
  natural 
  to 
  the 
  tropical 
  Colombian 
  fauna, 
  perhaps 
  of 
  the 
  

   Cauca-Magdalena 
  Valley. 
  It 
  can 
  now 
  be 
  stated 
  categorically 
  that 
  no 
  

   Cebus 
  agreeing 
  with 
  the 
  description 
  of 
  chrysopus, 
  with 
  ample 
  allow- 
  

   ances 
  for 
  individual 
  variation, 
  occm's 
  in 
  the 
  Cauca-Magdalena 
  Valley 
  

   or 
  elsewhere 
  in 
  Colombia 
  from 
  which 
  specimens 
  of 
  the 
  albifrons 
  group 
  

   are 
  at 
  hand. 
  On 
  the 
  other 
  hand, 
  the 
  original 
  figure 
  of 
  chrysopus 
  

   shows 
  greatest 
  resemblance 
  to 
  Amazonian 
  specimens 
  referred 
  to 
  C. 
  

   albifrons 
  unicolor. 
  As 
  it 
  is 
  unlikely 
  that 
  the 
  menagerie 
  animal 
  

   representing 
  chrysopus 
  can 
  ever 
  be 
  positively 
  identified 
  with 
  any 
  wild 
  

   living 
  representatives 
  of 
  C. 
  albifrons, 
  it 
  is 
  best 
  to 
  relegate 
  provisionally 
  

   that 
  name 
  to 
  the 
  synonymy 
  of 
  unicolor. 
  

  

  Cebus 
  Brissonii 
  Lesson 
  (1840, 
  p. 
  155). 
  The 
  first 
  reference 
  in 
  the 
  

   description 
  is 
  "Simiolus 
  ceylonicus, 
  Seba, 
  t. 
  1, 
  p. 
  77, 
  pi. 
  48, 
  fig. 
  3." 
  

   Next 
  is 
  given 
  the 
  Cercopithecus 
  flavus 
  of 
  Brisson 
  (1762, 
  p. 
  140) 
  with 
  the 
  

   original 
  Latin 
  diagnosis 
  quoted. 
  These 
  citations 
  are 
  followed 
  by 
  

   references 
  to 
  forms 
  described 
  or 
  transcribed 
  as 
  fiava 
  [sic] 
  Sclu-eber, 
  

   flavus 
  Geoffrey, 
  snidfulvus 
  Desmarest. 
  The 
  Seba 
  and 
  Brisson 
  animals 
  

   are 
  probably 
  the 
  same, 
  as 
  Brisson 
  also 
  cited 
  Seba. 
  The 
  monkey 
  in 
  

  

  