﻿THE 
  SPIDER 
  MONKEYS 
  — 
  KELLOGG 
  AND 
  GOLDMAX 
  27 
  

  

  conspecific. 
  On 
  the 
  other 
  hand, 
  the 
  cranial 
  details 
  as 
  ^vell 
  as 
  color 
  

   ditFerences 
  point 
  to 
  a 
  departure 
  from 
  robu^tus, 
  a 
  j^eographic 
  neighbor 
  

   on 
  the 
  west. 
  This 
  monkey 
  has 
  been 
  reported 
  from 
  as 
  far 
  south 
  as 
  

   Bolivar 
  in 
  the 
  Cordillera 
  Oriental 
  of 
  Santander 
  Department. 
  

  

  Montandon 
  (La 
  Nature, 
  Taris, 
  No. 
  2809, 
  vol. 
  1, 
  p. 
  440, 
  May 
  15, 
  1929; 
  

   Coiiiptes 
  Rendus 
  Acad. 
  Sci. 
  Paris, 
  vol. 
  188, 
  No. 
  11, 
  p. 
  817, 
  March 
  11, 
  

   1929) 
  has 
  described 
  a 
  monkey 
  under 
  the 
  name 
  of 
  Amer-anthvopoldes 
  

   luysi, 
  typifying 
  an 
  assumed 
  new 
  family 
  Amer-anthropoidae, 
  from 
  a 
  

   left 
  aftlucnt 
  of 
  the 
  u|)per 
  Rio 
  Tarra, 
  a 
  tributary 
  of 
  the 
  Rio 
  Catatumbo, 
  

   which 
  flows 
  into 
  Lake 
  Maracaibo, 
  Venezuela. 
  The 
  collector. 
  Dr. 
  Fran- 
  

   cois 
  de 
  Loys, 
  observed 
  two 
  individuals 
  and 
  killed 
  the 
  female, 
  and 
  al- 
  

   though 
  an 
  effort 
  was 
  made 
  to 
  save 
  the 
  skin 
  and 
  the 
  skull 
  these 
  were 
  

   subsequently 
  spoiled 
  by 
  humidity. 
  The 
  description 
  was 
  based 
  on 
  notes 
  

   and 
  a 
  photograph 
  (Montandon, 
  Journ. 
  Soc. 
  Amer. 
  Paris, 
  new 
  ser., 
  

   vol. 
  21, 
  pp. 
  18:3-19;"). 
  pi. 
  5, 
  1929) 
  of 
  the 
  animal. 
  The 
  absurdity 
  of 
  the 
  

   conclusions 
  reached 
  by 
  Montundon 
  is 
  pointed 
  out 
  in 
  detail 
  by 
  Cabrera 
  

   (Rev. 
  Soc. 
  Argentina"^Cienc. 
  Nat., 
  vol. 
  10, 
  pp. 
  204-209, 
  July 
  12, 
  1930). 
  

   The 
  animal 
  photographed 
  seems 
  to 
  be 
  unquestionably 
  an 
  Afclcs 
  with 
  

   a 
  trianguhir 
  white 
  patch 
  on 
  the 
  forehead. 
  Specimens 
  examined 
  by 
  us 
  

   from 
  tlie 
  San 
  Calisto 
  district 
  of 
  the 
  upper 
  Rio 
  Tarra 
  proved 
  to 
  be 
  

   A 
  teles 
  hclzchuth 
  hi/hndus, 
  to 
  which 
  the 
  name 
  Amer-anthropoules 
  loysi 
  

   is 
  here 
  relegated 
  in 
  synonymy. 
  

  

  Specimens 
  examined. 
  — 
  Total 
  number, 
  17, 
  as 
  follows 
  : 
  Colombia 
  : 
  La 
  

   Gloria, 
  Rio 
  Magdalena, 
  2; 
  Las 
  Marimondas, 
  eastern 
  Andes, 
  Fonseca, 
  

   Magdalena, 
  o: 
  Puerto 
  Estrella, 
  Rio 
  Magdalena, 
  Magdalena, 
  2; 
  Rio 
  

   Guaimaral, 
  Valledupar, 
  Magdalena, 
  6; 
  Rio 
  Tarra, 
  San 
  Calisto, 
  San- 
  

   tander, 
  2. 
  

  

  ATELES 
  FUSCICEPS 
  FUSCICEPS 
  Gray 
  

  

  Brown-headed 
  Spider 
  Monkey 
  

  

  Atclfn 
  fusrircps 
  Gray, 
  rn.c. 
  Zool. 
  Soc. 
  London 
  for 
  18(i5, 
  pt. 
  3, 
  No. 
  47, 
  p. 
  TA'.i, 
  Apr. 
  

  

  1806. 
  

   Atcles 
  fuscicepi 
  Sclateu. 
  Proc. 
  Zool. 
  Soc. 
  London 
  for 
  1872, 
  pt. 
  2. 
  No. 
  42, 
  p. 
  GGIi, 
  

  

  pi. 
  54 
  (col.). 
  Nov. 
  187"J. 
  (Specimen 
  collcftod 
  |»y 
  (Jlarcnce 
  Buckley 
  in 
  Trans- 
  

  

  undeun 
  Ecuador.) 
  

  

  Type 
  locality. 
  — 
  South 
  America. 
  [Here 
  restricted 
  to 
  Hacienda 
  Chi- 
  

   nipamba,near 
  Pefiaherrcra 
  (west 
  of 
  Ibarra), 
  Tntag 
  Disti-ict, 
  Tnibabura 
  

   Province, 
  ncn-thwestern 
  Ecuador; 
  allilnde 
  1,500 
  meters.] 
  

  

  Type 
  specimen. 
  — 
  Briti.sh 
  Museum 
  (Natural 
  History) 
  No. 
  . 
  

  

  Di-strihufifni. 
  — 
  Pacific 
  side 
  of 
  cordilleia 
  of 
  TOcuador. 
  

  

  General 
  characters. 
  — 
  A 
  black 
  or 
  bnnvnish-black 
  si)ider 
  monkey, 
  willi 
  

   top 
  of 
  head 
  more 
  distinctly 
  brownish 
  than 
  body; 
  foot 
  small 
  (150-170 
  

   mm.) 
  ; 
  pelage 
  rather 
  eoapse; 
  tail 
  variable 
  in 
  length, 
  usually 
  one-fifth 
  

   or 
  more 
  longer 
  than 
  head 
  and 
  body, 
  clothed 
  witii 
  hair 
  of 
  moderate 
  

   length. 
  Closely 
  allied 
  to 
  rohimtus 
  of 
  Colomi)ia 
  but 
  more 
  brownish, 
  

   especially 
  on 
  the 
  head. 
  Compared 
  with 
  paniscus, 
  especially 
  as 
  repre- 
  

  

  