﻿AOTUS 
  15 
  

  

  mistake 
  had 
  been 
  made 
  in 
  the 
  locality 
  assigned, 
  for 
  the 
  origins 
  given 
  to 
  

   examples 
  "obtained 
  by 
  this 
  collector 
  in 
  other 
  branches 
  of 
  Zoology 
  have 
  

   not 
  always 
  been 
  free 
  from 
  doubt." 
  

  

  This 
  species 
  is 
  most 
  easily 
  distinguished 
  from 
  A. 
  infulatus 
  by 
  

   the 
  three 
  black 
  stripes 
  on 
  the 
  head, 
  and 
  the 
  grayish 
  white, 
  or 
  ochra- 
  

   ceous 
  buff 
  on 
  the 
  forehead 
  is 
  carried 
  back 
  between 
  the 
  black 
  stripes, 
  

   not 
  being 
  restricted 
  to 
  the 
  forehead 
  alone 
  as 
  in 
  the 
  other 
  species 
  

   compared. 
  The 
  general 
  color 
  of 
  the 
  pelage 
  is 
  more 
  reddish 
  than 
  in 
  A. 
  

   infulatus. 
  Frequently 
  in 
  the 
  make 
  up 
  of 
  skins, 
  especially 
  in 
  old 
  

   material, 
  the 
  stripes 
  on 
  the 
  head 
  are 
  confused 
  with 
  the 
  white, 
  and 
  it 
  is 
  

   sometimes 
  not 
  easy 
  to 
  ascertain 
  whether 
  there 
  are 
  three 
  stripes 
  or 
  not, 
  

   the 
  hairs 
  having 
  become 
  twisted 
  and 
  set, 
  and 
  refuse 
  to 
  assume 
  their 
  

   proper 
  position. 
  Some 
  individuals 
  have 
  the 
  top 
  of 
  the 
  head 
  russet, 
  

   and 
  some 
  are 
  grayish. 
  

  

  AOTUS 
  GEISEIMEMBRA 
  Elliot. 
  

  

  Nyctipithecus 
  felinus 
  (nee 
  Spix), 
  Bangs, 
  Proc. 
  N. 
  Eng. 
  Zool. 
  

   Club, 
  I, 
  1900, 
  p. 
  102, 
  ex 
  Santa 
  Marta, 
  Colombia. 
  

  

  Aotus 
  griseimembra 
  Elliot, 
  Bull. 
  Am. 
  Mus. 
  Nat. 
  Hist., 
  N. 
  Y., 
  

   1912, 
  p. 
  33 
  ; 
  Allen, 
  Bull. 
  Am. 
  Mus. 
  Nat. 
  Hist., 
  N. 
  Y., 
  XXXI, 
  

   1912, 
  p. 
  95. 
  

  

  Type 
  locality. 
  Hacienda 
  Cincinnati, 
  Santa 
  Marta; 
  and 
  Rio 
  Sinu 
  

   Cerete, 
  Bolivar; 
  Colombia. 
  Type 
  in 
  American 
  Museum 
  of 
  Natural 
  

   History, 
  in 
  New 
  York. 
  

  

  Color. 
  Spot 
  above 
  and 
  below 
  each 
  eye 
  white; 
  a 
  black 
  patch 
  

   beginning 
  at 
  a 
  point 
  on 
  forehead 
  between 
  each 
  eye 
  and 
  extending 
  

   backward 
  on 
  crown, 
  fan-shaped; 
  jet 
  black 
  line 
  extending 
  from 
  each 
  

   eye 
  on 
  side 
  of 
  head 
  and 
  going 
  to 
  occiput 
  ; 
  rest 
  of 
  head, 
  neck 
  and 
  upper 
  

   parts 
  mixed 
  cinnamon 
  and 
  black; 
  arms 
  and 
  legs 
  smoke 
  gray, 
  hairs 
  

   tipped 
  with 
  buff 
  ; 
  no 
  cinnamon 
  nor 
  black 
  present 
  ; 
  hands 
  mummy 
  brown 
  

   and 
  black; 
  feet 
  black 
  on 
  sides, 
  golden 
  brown 
  on 
  center 
  and 
  on 
  toes; 
  

   sides 
  of 
  head 
  and 
  neck 
  grayish; 
  throat 
  buff; 
  rest 
  of 
  under 
  parts 
  and 
  

   inner 
  side 
  of 
  arms 
  and 
  thighs 
  ochraceous 
  buff; 
  flanks 
  grayish 
  buff; 
  

   tail 
  at 
  root 
  above 
  like 
  upper 
  parts, 
  mixed 
  black 
  and 
  cinnamon, 
  beneath 
  

   at 
  root 
  dark 
  ochraceous 
  rufous; 
  sides 
  on 
  basal 
  half 
  buff, 
  hairs 
  black 
  

   tipped 
  ; 
  rest 
  of 
  tail 
  jet 
  black. 
  Ex 
  type 
  in 
  American 
  Museum 
  of 
  Natural 
  

   History 
  in 
  New 
  York. 
  

  

  Measurements. 
  Total 
  length, 
  1,047; 
  tail, 
  372; 
  foot, 
  92.5, 
  (Col- 
  

   lector) 
  . 
  Skull 
  : 
  total 
  length, 
  60 
  ; 
  occipito-nasal 
  length, 
  58.2 
  ; 
  zygomatic 
  

   width, 
  36.5; 
  intertemporal 
  width, 
  32; 
  median 
  length 
  of 
  nasals, 
  11; 
  

   breadth 
  of 
  braincase, 
  32 
  ; 
  palatal 
  length, 
  16.4 
  ; 
  length 
  of 
  upper 
  molar 
  

  

  