﻿MAMMALS 
  OF 
  NORTHERN 
  COLOMBIA 
  — 
  ^HERSHKOVITZ 
  329 
  

  

  REVIEW 
  OF 
  RECENT 
  LITERATURE 
  

  

  Three 
  species 
  of 
  "untufted" 
  micos 
  are 
  identifiable. 
  First, 
  Cehus 
  

   capucinus 
  Linnaeus, 
  1758. 
  It 
  is 
  distinguished 
  from 
  all 
  others 
  by 
  the 
  

   uniformly 
  black 
  pelage 
  on 
  crown, 
  back, 
  sides, 
  tail, 
  and 
  limbs 
  contrasted 
  

   with 
  the 
  whitish 
  to 
  buffy 
  face, 
  forehead, 
  throat, 
  sides 
  and 
  front 
  of 
  

   neck, 
  chest, 
  shoulders, 
  and 
  inner 
  and 
  front 
  sides 
  of 
  upper 
  arms. 
  This 
  

   mice 
  is 
  referred 
  to 
  in 
  this 
  discussion 
  as 
  the 
  black 
  white-fronted 
  Cehus. 
  

   The 
  second 
  species 
  is 
  Cehus 
  albifrons 
  Humboldt, 
  or 
  the 
  brown 
  pale- 
  

   fronted 
  Cehus. 
  Its 
  color 
  is 
  distributed 
  in 
  much 
  the 
  same 
  pattern 
  as 
  

   in 
  the 
  first 
  except 
  that 
  the 
  black 
  is 
  replaced 
  by 
  a 
  tone 
  of 
  yellowish 
  to 
  

   dark 
  brown 
  and 
  the 
  pale 
  frontal 
  area 
  is 
  warmer 
  and 
  more 
  restricted 
  in 
  

   extension. 
  The 
  third 
  "untufted" 
  species 
  is 
  the 
  much-misconstrued 
  

   Cehus 
  capucinus 
  of 
  authors 
  (not 
  Linnaeus), 
  or 
  Cehus 
  nigrivittatus 
  

   Wagner. 
  This 
  is 
  also 
  a 
  brown 
  monkey 
  but 
  usually 
  darker 
  than 
  the 
  

   second, 
  tending 
  to 
  blackish 
  on 
  the 
  much 
  smaller, 
  wedge-shaped 
  cap, 
  

   middorsal 
  line, 
  hands, 
  and 
  feet. 
  In 
  addition, 
  the 
  contrastingly 
  pale 
  

   front 
  of 
  the 
  first 
  and 
  second 
  species 
  is 
  here 
  much 
  less, 
  or 
  hardly 
  at 
  

   all 
  contrasting, 
  and 
  is 
  extremely 
  restricted 
  in 
  area. 
  The 
  "tufted" 
  

   group 
  is 
  represented 
  by 
  a 
  single 
  species 
  in 
  Colombia, 
  Cehus 
  apella 
  

   Linnaeus. 
  It 
  is 
  doubtful 
  if 
  more 
  than 
  one 
  species 
  of 
  "tufted" 
  Cehus 
  

   can 
  be 
  recognized 
  at 
  any 
  one 
  locality. 
  

  

  In 
  his 
  review 
  of 
  the 
  Primates, 
  Elliot 
  (1913, 
  p. 
  77) 
  listed 
  24 
  forms 
  of 
  

   Cehus, 
  of 
  which 
  20 
  were 
  given 
  full 
  specific 
  rank. 
  In 
  his 
  key 
  Elliot 
  

   sorted 
  these 
  into 
  tw^o 
  major 
  groups, 
  "A. 
  Head 
  without 
  tufts 
  on 
  male." 
  

   and 
  "B. 
  Heads 
  with 
  tufts 
  or 
  ridges 
  on 
  male." 
  Cranial 
  characters 
  

   exclusive 
  of 
  measmements 
  were 
  not 
  used 
  in 
  the 
  key 
  or 
  in 
  any 
  of 
  the 
  

   descriptions 
  of 
  recognized 
  forms. 
  This 
  arrangement 
  does 
  not 
  convey 
  

   the 
  true 
  characters 
  of 
  the 
  monkeys 
  involved, 
  nor 
  does 
  it 
  necessarily 
  

   correspond 
  to 
  established 
  concepts 
  of 
  what 
  constitutes 
  a 
  "tufted" 
  or 
  

   "untufted" 
  species 
  of 
  Cehus. 
  All 
  forms 
  listed 
  by 
  Elliot 
  in 
  his 
  group 
  

   "B" 
  are 
  indeed 
  "tufted." 
  However, 
  his 
  group 
  "A" 
  includes 
  names 
  

   of 
  three 
  truly 
  "tufted" 
  cebids, 
  though 
  the 
  tufts 
  may 
  not 
  have 
  been 
  

   obvious 
  in 
  the 
  material 
  examined 
  by 
  Elliot, 
  or 
  they 
  may 
  have 
  been 
  

   overlooked 
  at 
  the 
  time 
  he 
  composed 
  the 
  key. 
  The 
  three 
  are 
  Cehus 
  

   apella, 
  Cehus 
  Jrontatus, 
  and 
  Cehus 
  variegatus. 
  The 
  type 
  specimens 
  

   oi 
  frontatus 
  and 
  variegatus 
  were 
  examined 
  by 
  the 
  writer 
  and 
  found 
  to 
  

   be 
  "tufted." 
  Elliot's 
  description, 
  in 
  the 
  text, 
  of 
  each 
  of 
  these 
  forms 
  

   conforms 
  to 
  the 
  definition 
  of 
  a 
  "tufted" 
  Cehus 
  in 
  spite 
  of 
  their 
  inclusion 
  

   in 
  the 
  "untufted" 
  section 
  of 
  his 
  key. 
  The 
  description 
  and 
  comparisons 
  

   of 
  C. 
  apella 
  given 
  by 
  Elliot 
  (pp. 
  80-82) 
  also 
  show 
  clearly 
  that 
  it 
  is 
  a 
  

   tufted 
  Cehus. 
  On 
  the 
  other 
  hand, 
  Elliot's 
  synonymy 
  of 
  apella 
  is 
  

   a 
  composite 
  of 
  "tufted" 
  and 
  "untufted" 
  cebids. 
  His 
  citations 
  of 
  

   synonyms 
  of 
  "tufted" 
  monkeys 
  include 
  apella 
  "Erxlehen, 
  fulvus 
  Kerr, 
  

   apella 
  Humboldt, 
  griseus 
  Desmarest, 
  apella 
  Wagner, 
  pucherani 
  [sic] 
  

  

  