﻿CEBUS 
  89 
  

  

  Genl. 
  Char. 
  Size 
  large, 
  tail 
  very 
  long, 
  bushy; 
  head 
  and 
  body 
  of 
  

   strongly 
  contrasting 
  colors. 
  

  

  Color. 
  Forepart 
  of 
  head, 
  throat, 
  chest 
  and 
  back 
  of 
  head 
  white; 
  

   upper 
  parts 
  grayish 
  red 
  to 
  reddish 
  brown, 
  dorsal 
  line 
  and 
  rump 
  darker 
  

   red 
  in 
  some 
  examples 
  ; 
  limbs 
  brighter 
  red 
  than 
  the 
  body 
  ; 
  hands 
  and 
  feet 
  

   dark 
  reddish 
  brown 
  or 
  blackish 
  ; 
  under 
  parts 
  dull 
  reddish 
  ; 
  tail 
  varying 
  

   from 
  fox 
  red 
  or 
  grayish 
  red 
  at 
  base, 
  to 
  yellowish 
  red 
  or 
  sooty 
  yellow 
  

   at 
  tip. 
  In 
  some 
  specimens 
  the 
  red 
  of 
  the 
  back 
  of 
  the 
  head 
  extends 
  

   forward 
  in 
  a 
  point 
  on 
  the 
  white 
  crown. 
  

  

  Measurements. 
  Skull 
  : 
  occipito-nasal 
  length, 
  80 
  ; 
  Hensel, 
  57 
  ; 
  zygo- 
  

   matic 
  width, 
  60; 
  intertemporal 
  width, 
  40; 
  median 
  length 
  of 
  nasals, 
  13; 
  

   length 
  of 
  upper 
  molar 
  series, 
  21 
  ; 
  length 
  of 
  lower 
  molar 
  series, 
  21 
  ; 
  

   length 
  of 
  mandible, 
  55. 
  

  

  Gray's 
  type 
  of 
  C. 
  leucocephalus 
  is 
  in 
  the 
  British 
  Museum, 
  

   mounted. 
  It 
  is 
  a 
  large 
  monkey 
  and 
  answers 
  in 
  all 
  respects 
  to 
  the 
  

   description 
  of 
  Humboldt's 
  species, 
  save 
  the 
  breast, 
  but 
  as 
  the 
  hair 
  

   has 
  disappeared 
  from 
  this 
  part 
  it 
  is 
  not 
  possible 
  to 
  say 
  what 
  the 
  color- 
  

   ing 
  was 
  originally, 
  but 
  as 
  the 
  rest 
  of 
  the 
  animal 
  accords 
  with 
  C. 
  albi- 
  

   frons 
  it 
  would 
  doubtless 
  be 
  white 
  like 
  the 
  greater 
  part 
  of 
  the 
  head. 
  

  

  There 
  are 
  two 
  specimens 
  of 
  C. 
  gracilis 
  Spix, 
  in 
  the 
  Munich 
  

   Museum 
  both 
  marked 
  Types,' 
  both 
  young 
  animals, 
  but 
  one 
  consider- 
  

   ably 
  younger 
  than 
  the 
  other. 
  They 
  have 
  probably 
  faded 
  somewhat 
  

   for 
  they 
  are 
  paler 
  than 
  Spix's 
  figure 
  but 
  that 
  may 
  have 
  been 
  over 
  

   colored. 
  In 
  their 
  markings 
  and 
  general 
  distribution 
  of 
  hues 
  these 
  

   examples 
  resemble 
  C. 
  albifrons 
  (Humboldt), 
  and 
  cannot 
  be 
  sepa- 
  

   rated 
  from 
  that 
  species. 
  

  

  The 
  type 
  of 
  C. 
  versicolor 
  Pucheran, 
  and 
  another 
  specimen 
  are 
  

   in 
  the 
  Paris 
  Museum, 
  the 
  type 
  much 
  darker 
  and 
  richer 
  in 
  color 
  of 
  the 
  

   two. 
  It 
  does 
  not 
  present 
  any 
  characters 
  to 
  cause 
  its 
  separation 
  from 
  

   C. 
  albifrons, 
  the 
  fact 
  that 
  there 
  is 
  no 
  specimen 
  in 
  the 
  Museum 
  bear- 
  

   ing 
  that 
  name, 
  probably 
  was 
  the 
  main 
  cause 
  for 
  Pucheran 
  having 
  been 
  

   misled 
  and 
  made 
  to 
  suppose 
  he 
  had 
  an 
  unknown 
  species 
  before 
  him. 
  

   The 
  type 
  is 
  somewhat 
  darker, 
  and 
  the 
  limbs 
  a 
  deeper 
  red 
  than 
  is 
  seen 
  

   in 
  the 
  majority 
  of 
  specimens, 
  but 
  the 
  other 
  example 
  is 
  much 
  paler 
  and 
  

   has, 
  evidently, 
  not 
  yet 
  suffered 
  by 
  exposure 
  to 
  light. 
  The 
  total 
  length 
  

   is 
  1,229.90; 
  tail, 
  673.80; 
  foot, 
  114.30. 
  The 
  skull, 
  as 
  is 
  the 
  case 
  with 
  

   so 
  many 
  of 
  the 
  types 
  in 
  the 
  Paris 
  Museum, 
  is 
  in 
  the 
  specimen, 
  and 
  no 
  

   comparisons 
  can 
  be 
  made 
  or 
  measurements 
  taken 
  ; 
  and 
  it 
  would 
  seem 
  

   that 
  the 
  earlier 
  writers 
  did 
  not 
  look 
  for 
  cranial 
  characters 
  by 
  which 
  

   their 
  species 
  might 
  be 
  determined, 
  but 
  relied, 
  apparently, 
  almost 
  

  

  