﻿14 
  AOTUS 
  

  

  L. 
  Mamm. 
  N. 
  Amer. 
  Cont. 
  and 
  W. 
  Indies, 
  F. 
  C. 
  M. 
  Pub., 
  VI, 
  

   1905, 
  p. 
  534, 
  Zool. 
  Ser. 
  

   Nyctipithecus 
  ruHpes 
  Forbes, 
  Handb. 
  Mamm., 
  I, 
  1894, 
  p. 
  169, 
  pi. 
  

   XV, 
  (Part.). 
  

  

  NOISY 
  DOUROUCOULI. 
  

  

  Type 
  locality. 
  Tabatinga 
  on 
  the 
  Upper 
  Maranon, 
  eastern 
  border 
  

   of 
  Peru. 
  Type 
  in 
  Munich 
  Museum. 
  

  

  Geogr. 
  Distr. 
  Upper 
  Amazon 
  ; 
  on 
  banks 
  of 
  the 
  Ucayali 
  and 
  Hual- 
  

   laga 
  rivers, 
  and 
  on 
  the 
  Upper 
  Maranon 
  on 
  eastern 
  border 
  of 
  Peru; 
  

   the 
  mountains 
  of 
  Tolima, 
  Colombia. 
  

  

  Genl. 
  Char. 
  Hair, 
  long, 
  loose, 
  fluffy, 
  thick; 
  color 
  uniform. 
  

  

  Color. 
  Spot 
  over 
  and 
  beneath 
  each 
  eye 
  white 
  ; 
  a 
  fan-shaped 
  black 
  

   spot 
  on 
  center 
  of 
  head, 
  and 
  a 
  lateral 
  black 
  line 
  extending 
  back 
  on 
  each 
  

   side 
  of 
  the 
  head 
  towards 
  occiput 
  ; 
  entire 
  upper 
  parts 
  and 
  limbs 
  cinna- 
  

   mon 
  rufous, 
  darkest 
  on 
  head 
  and 
  dorsal 
  lines 
  which 
  are 
  more 
  reddish 
  ; 
  

   under 
  parts 
  ochraceous 
  buff; 
  inner 
  side 
  of 
  limbs 
  grayish 
  buff; 
  hands 
  

   and 
  feet 
  blackish 
  brown, 
  reddish 
  in 
  type 
  ; 
  tail 
  at 
  base 
  like 
  dorsal 
  line, 
  a 
  

   reddish 
  cinnamon 
  rufous, 
  remainder 
  black. 
  The 
  type 
  of 
  N. 
  lemurinus 
  

   I. 
  Geoffroy, 
  in 
  the 
  Paris 
  Museum, 
  has 
  been 
  examined, 
  but 
  it 
  is 
  so 
  faded 
  

   from 
  exposure 
  to 
  light 
  that 
  it 
  is 
  impossible 
  to 
  recognize 
  its 
  original 
  

   coloring, 
  and 
  one 
  could 
  only 
  guess 
  at 
  it. 
  

  

  Measurements. 
  Skull 
  : 
  occipito-nasal 
  length, 
  58 
  ; 
  zygomatic 
  width, 
  

   40; 
  intertemporal 
  width, 
  30; 
  median 
  length 
  of 
  nasals, 
  12; 
  breadth 
  of 
  

   braincase, 
  32 
  ; 
  palatal 
  length, 
  19 
  ; 
  length 
  of 
  upper 
  molar 
  series, 
  14.5 
  ; 
  

   length 
  of 
  mandible, 
  36; 
  length 
  of 
  lower 
  molar 
  series, 
  15. 
  

  

  The 
  type 
  of 
  this 
  species 
  is 
  in 
  the 
  Munich 
  Museum, 
  but 
  is 
  now 
  in 
  

   a 
  very 
  poor 
  condition. 
  The 
  hair 
  has 
  gone 
  from 
  the 
  face 
  and 
  from 
  a 
  

   portion 
  of 
  the 
  head 
  over 
  the 
  right 
  eye. 
  There 
  is 
  no 
  trace 
  remaining 
  

   of 
  the 
  black 
  line 
  on 
  the 
  side 
  of 
  the 
  head, 
  and 
  the 
  triangular 
  black 
  spot 
  

   on 
  top 
  of 
  the 
  head 
  has 
  disappeared, 
  while 
  only 
  a 
  few 
  hairs 
  above 
  and 
  

   below 
  the 
  eyes 
  indicate 
  the 
  white 
  spots 
  formerly 
  existing. 
  The 
  fur 
  is 
  

   much 
  faded, 
  and 
  discolored 
  by 
  time 
  and 
  exposure. 
  There 
  was 
  no 
  skull 
  

   preserved. 
  

  

  In 
  the 
  Proceedings 
  of 
  the 
  London 
  Zoological 
  Society, 
  1872, 
  p. 
  3, 
  

   Mr. 
  Sclater 
  identified 
  a 
  specimen 
  stated 
  by 
  Dr. 
  von 
  Patten 
  to 
  have 
  

   been 
  collected 
  in 
  the 
  forest 
  of 
  Quindin, 
  Costa 
  Rica, 
  as 
  the 
  same 
  as 
  

   this 
  species 
  under 
  the 
  name 
  of 
  N. 
  lemurinus. 
  The 
  locality 
  given 
  is 
  

   probably 
  an 
  error, 
  as 
  no 
  species 
  of 
  Aotus 
  is 
  known 
  to 
  inhabit 
  any 
  part 
  

   of 
  Central 
  America, 
  and 
  Alston 
  (1. 
  c.) 
  says 
  that 
  Mr. 
  Salvin 
  thought 
  a 
  

  

  