﻿MAMMALS 
  OF 
  NORTHERN 
  COLOMBIA 
  — 
  HERSHKOVITZ 
  355 
  

  

  la 
  poitrine, 
  qui 
  ne 
  sont 
  pas 
  d'un 
  fauve 
  pale, 
  mais 
  d'un 
  blanc 
  tres- 
  

   clair, 
  quoique 
  un 
  peu 
  jaunatre; 
  et 
  par 
  le 
  sommet 
  de 
  la 
  tete, 
  qui 
  n'ofFre 
  

   ni 
  une 
  calotte 
  plus 
  noire 
  que 
  le 
  pelage 
  du 
  dos, 
  ni 
  une 
  strie 
  qui 
  descend 
  

   longitudinalement 
  vers 
  le 
  front." 
  

  

  Remarks. 
  — 
  According 
  to 
  Humboldt, 
  characters 
  separating 
  hypoleu- 
  

   cus 
  from 
  other 
  species 
  of 
  Cebus 
  are 
  "[transl.] 
  the 
  color 
  of 
  the 
  face, 
  

   shoulders 
  and 
  chest 
  which 
  are 
  not 
  pale 
  tawny 
  [as 
  in 
  the 
  others] 
  but 
  of 
  a 
  

   very 
  pure 
  white, 
  though 
  a 
  little 
  yellowish; 
  the 
  cap 
  of 
  the 
  crown 
  which 
  

   is 
  not 
  darker 
  than 
  the 
  pelage 
  of 
  the 
  back, 
  and 
  the 
  absence 
  of 
  a 
  stripe 
  

   descending 
  longitudinally 
  on 
  the 
  forehead." 
  Thus 
  if 
  it 
  were 
  not 
  

   definitely 
  expressed, 
  it 
  would 
  be 
  implicit 
  that 
  in 
  other 
  respects 
  hypoleu- 
  

   cus 
  is 
  brownish 
  like 
  the 
  others. 
  Mention 
  of 
  absence 
  of 
  a 
  frontal 
  stripe 
  

   was 
  intended 
  to 
  further 
  distinguish 
  hypoleucus 
  from 
  albifrons. 
  This 
  

   last, 
  however, 
  is 
  a 
  variable 
  character 
  and 
  of 
  no 
  diagnostic 
  value. 
  The 
  

   probability 
  cited 
  by 
  Humboldt 
  that 
  hypoleucus 
  may 
  occur 
  also 
  in 
  

   French 
  Guiana 
  excludes 
  Cebus 
  capucinus 
  from 
  consideration. 
  It 
  

   appears, 
  then, 
  that 
  hypoleucus 
  is 
  a 
  dark 
  brown 
  form 
  of 
  albifrons, 
  with 
  

   little 
  if 
  any 
  contrast 
  between 
  color 
  of 
  back 
  and 
  forearms 
  and 
  forelegs, 
  

   and 
  most 
  nearly 
  resembles 
  malitiosus. 
  

  

  The 
  type 
  locality 
  of 
  hypoleucus 
  lies 
  between 
  the 
  ranges 
  of 
  malitiosus 
  

   and 
  pleei 
  (nomen 
  novum, 
  Rio 
  Magdalena) 
  and 
  of 
  Cebus 
  capucinus 
  (Rfo 
  

   Atrato 
  and 
  Panama). 
  It 
  is 
  highly 
  probable, 
  therefore, 
  that 
  both 
  

   brown 
  and 
  black 
  wliite-fronted 
  cebids 
  occur 
  in 
  the 
  region 
  of 
  the 
  Rio 
  

   Sinii. 
  The 
  Indians 
  who 
  reported 
  to 
  Humboldt 
  that 
  hypoleucus 
  main- 
  

   tained 
  itself 
  apart 
  from 
  another 
  species 
  of 
  monkeys 
  may 
  have 
  been 
  

   referring 
  to 
  true 
  Cebus 
  capucinus. 
  Humboldt 
  thought 
  it 
  was 
  the 
  

   ^'Matchi 
  vulgaire," 
  or 
  Cebus 
  nigrivittatus. 
  This 
  species, 
  however, 
  

   does 
  not 
  range 
  west 
  of 
  the 
  Andes. 
  

  

  The 
  local 
  name 
  cariblanco 
  adopted 
  by 
  Humboldt 
  for 
  Cebus 
  hypoleu- 
  

   cus 
  is 
  indiscriminately 
  applied 
  by 
  Colombians 
  to 
  both 
  C. 
  capucinus 
  

   and 
  C. 
  albifrons. 
  The 
  French 
  collector 
  Plee 
  labeled 
  his 
  Colombian 
  

   specimens 
  of 
  C. 
  albifrons 
  "carita 
  blanca." 
  The 
  more 
  generally 
  used 
  

   native 
  name 
  for 
  "untufted" 
  cebids 
  is 
  mico. 
  Humboldt 
  is 
  followed 
  in 
  

   listing 
  Buffon's 
  sal 
  a 
  gorge 
  blanche 
  in 
  the 
  synonymy 
  of 
  hypoleucus. 
  

  

  Specimens 
  examined. 
  — 
  None. 
  

  

  CEBUS 
  ALBIFRONS 
  MALITIOSUS 
  Elliot 
  

  

  Cehus 
  capucinus, 
  Allen 
  {nee 
  Linnaeus), 
  Bull. 
  Amer. 
  Mus. 
  Nat. 
  Hist., 
  vol. 
  20, 
  

   p. 
  467, 
  1904 
  (Santa 
  Marta 
  district: 
  Bonda, 
  Minca, 
  Cacagualito). 
  

  

  Cehus 
  malitiosus 
  Elliot, 
  Bull. 
  Amer. 
  Mus. 
  Nat. 
  Hist., 
  vol. 
  26, 
  p. 
  230, 
  1909; 
  A 
  

   review 
  of 
  the 
  Primates, 
  vol. 
  2, 
  p. 
  98, 
  1913. 
  

  

  C[ehus\ 
  c{apucinus\ 
  cuscinus, 
  Pusch, 
  Zeitschr. 
  fiir 
  Sauget., 
  vol. 
  16, 
  p. 
  196, 
  1941 
  

   (part; 
  malitiosus 
  a 
  synonym). 
  

  

  Holotype. 
  — 
  Adult 
  male, 
  skin 
  and 
  skull, 
  A.M.N.H. 
  No. 
  14620; 
  col- 
  

   lected 
  by 
  Herbert 
  H. 
  Smith. 
  

  

  799565—49 
  3 
  

  

  