﻿AOTUS 
  19 
  

  

  Genl. 
  Char. 
  Fur 
  woolly, 
  long, 
  soft; 
  three 
  lines 
  on 
  head, 
  lateral 
  

   one 
  not 
  meeting 
  on 
  occiput 
  ; 
  tail 
  bushy. 
  

  

  Color. 
  Similar 
  to 
  A. 
  lanius 
  but 
  paler; 
  a 
  buff 
  line 
  from 
  above 
  

   eyes 
  extending 
  back 
  to 
  occiput, 
  and 
  a 
  brownish 
  black 
  line 
  from 
  corner 
  

   of 
  each 
  eye 
  to 
  crown 
  only 
  ; 
  occiput, 
  and 
  dorsal 
  region 
  to 
  tail 
  yellowish 
  

   red, 
  much 
  paler 
  than 
  this 
  portion 
  in 
  A. 
  lanius; 
  outer 
  side 
  of 
  arms 
  

   and 
  flanks 
  yellowish 
  gray, 
  the 
  flanks 
  paler 
  than 
  arms 
  and 
  more 
  yellow 
  ; 
  

   outer 
  side 
  of 
  legs 
  similar 
  to 
  flanks; 
  chin, 
  throat, 
  under 
  part 
  of 
  body 
  

   and 
  inner 
  side 
  of 
  limbs 
  buff; 
  hands 
  and 
  feet 
  reddish 
  brown; 
  tail 
  

   above 
  and 
  beneath 
  on 
  basal 
  half 
  orange, 
  hairs 
  black 
  tipped, 
  remaining 
  

   portion 
  to 
  tip, 
  black. 
  Ex 
  type 
  British 
  Museum. 
  

  

  Measurements. 
  Total 
  length, 
  580; 
  tail, 
  220; 
  foot, 
  80, 
  (skin). 
  

   Skull 
  : 
  total 
  length, 
  65.5 
  ; 
  occipito-nasal 
  length, 
  59.1 
  ; 
  intertemporal 
  

   width, 
  60.5 
  ; 
  zygomatic 
  width, 
  57.7; 
  breadth 
  of 
  braincase, 
  31.6; 
  median 
  

   length 
  of 
  nasals, 
  13.3; 
  palatal 
  length, 
  15.4; 
  length 
  of 
  upper 
  molar 
  

   series, 
  13.5; 
  length 
  of 
  mandible, 
  35.4; 
  length 
  of 
  lower 
  molar 
  series, 
  

   16.1. 
  Ex 
  type 
  British 
  Museum. 
  

  

  This 
  species 
  while 
  having 
  woolly, 
  thick 
  fur, 
  and 
  bushy 
  tail 
  like 
  A. 
  

   lanius 
  is 
  much 
  lighter 
  in 
  color 
  and 
  quite 
  differently 
  marked 
  upon 
  the 
  

   head. 
  The 
  tooth 
  rows 
  are 
  much 
  shorter. 
  The 
  unique 
  type 
  in 
  the 
  

   British 
  Museum 
  was 
  obtained 
  at 
  Macas 
  in 
  Ecuador, 
  and 
  probably 
  the 
  

   species 
  is 
  found 
  in 
  high 
  latitudes 
  on 
  the 
  mountains. 
  

  

  Aottjs 
  spixi 
  (Pucheran). 
  

  

  Nyctipithecus 
  spixi 
  Pucher., 
  Rev. 
  Mag. 
  Zool., 
  1857, 
  pp. 
  335, 
  352 
  ; 
  

   Reichenb., 
  Vollstand. 
  Naturg. 
  Affen, 
  1862, 
  p. 
  20. 
  

  

  Type 
  locality. 
  "Amerique 
  Meridionale." 
  Type 
  Paris 
  Museum. 
  

  

  Genl. 
  Char. 
  Three 
  brownish 
  black 
  lines 
  on 
  head, 
  one 
  central, 
  and 
  

   two 
  lateral 
  extending 
  to 
  occiput. 
  Size 
  moderate, 
  tail 
  long. 
  

  

  Color. 
  Top 
  of 
  head 
  with 
  the 
  central 
  and 
  two 
  lateral 
  brownish 
  

   black 
  lines 
  ; 
  spots 
  over 
  eyes 
  grayish 
  white, 
  extending 
  back 
  to 
  occiput, 
  

   and 
  graduating 
  into 
  grayish 
  brown; 
  dorsal 
  line 
  golden, 
  indistinct 
  on 
  

   middle 
  of 
  back, 
  clearer 
  on 
  rump 
  ; 
  nape, 
  sides 
  of 
  head, 
  upper 
  parts 
  and 
  

   outer 
  side 
  of 
  limbs, 
  brownish 
  gray, 
  hairs 
  tipped 
  with 
  white 
  ; 
  sides 
  paler 
  ; 
  

   the 
  lateral 
  brownish 
  black 
  lines 
  extending 
  down 
  each 
  side 
  of 
  the 
  face 
  

   and 
  meeting 
  on 
  the 
  throat 
  below 
  chin, 
  which 
  is 
  whitish; 
  under 
  parts 
  

   and 
  inner 
  side 
  of 
  limbs 
  pale 
  yellow; 
  hands 
  and 
  feet 
  reddish 
  brown, 
  

   mixed 
  with 
  white 
  hairs 
  on 
  hands; 
  tail, 
  basal 
  half 
  grayish 
  brown 
  like 
  

   flanks 
  on 
  under 
  parts 
  and 
  side, 
  above 
  black, 
  apical 
  half 
  black; 
  face 
  

   bare 
  save 
  a 
  few 
  white 
  hairs 
  on 
  lips. 
  Ex 
  type 
  Paris 
  Museum. 
  

  

  