﻿BRACHYTELEUS 
  51 
  

  

  Eriodes 
  tuberifer 
  E. 
  Geoff., 
  Mem. 
  Mus. 
  Hist. 
  Nat., 
  Paris, 
  XVII, 
  

   1829, 
  p. 
  163; 
  Less., 
  Spec. 
  Mamm, 
  1840, 
  p. 
  135; 
  Dahlb., 
  

   Stud. 
  Zool. 
  Fam. 
  Reg. 
  Anim. 
  Natur., 
  fasc. 
  I, 
  1856, 
  p. 
  135; 
  

   Reichenb., 
  Vollstand. 
  Naturg. 
  Affen, 
  1862, 
  p. 
  57, 
  figs. 
  41, 
  42. 
  

  

  Eriodes 
  arachnoides 
  E. 
  Geoff., 
  Mem. 
  Mus. 
  Hist. 
  Nat., 
  Paris, 
  XVII, 
  

   1828, 
  p. 
  160; 
  Wagn., 
  Schreb., 
  Saugth. 
  Suppl., 
  I, 
  1840, 
  p. 
  204^ 
  

   pi. 
  XXVI 
  D 
  ; 
  V, 
  1855, 
  p. 
  80 
  ; 
  Less., 
  Spec. 
  Mamm., 
  1840, 
  p. 
  136 
  ; 
  

   Blainv., 
  Osteog., 
  1840, 
  Atl., 
  Cebus, 
  pi. 
  V; 
  I. 
  Geoff., 
  Cat. 
  

   Primates, 
  1851, 
  p. 
  51; 
  Reichenb., 
  Vollstand. 
  Naturg. 
  Affen, 
  

   1862, 
  p. 
  57, 
  fig. 
  140; 
  von 
  Pelz., 
  Bras. 
  Saugeth., 
  1883, 
  p. 
  8. 
  

  

  Cebus 
  hypoxanthus 
  Fisch., 
  Syn. 
  Mamm., 
  1829, 
  p. 
  38. 
  

  

  Cebus 
  arachnoides 
  Fisch., 
  Syn. 
  Mamm., 
  1829, 
  p. 
  38. 
  

  

  Brachy 
  teles 
  ( 
  !) 
  arachnoides 
  Gray, 
  List 
  Spec. 
  Mamm. 
  Brit. 
  Mus., 
  

   1843, 
  p. 
  10 
  ; 
  Id. 
  Cat. 
  Monkeys, 
  Lemurs 
  and 
  Fruit-eating 
  Bats, 
  

   Brit. 
  Mus., 
  1870, 
  p. 
  45 
  ; 
  Forbes, 
  Handb. 
  Primates, 
  I, 
  1894, 
  p. 
  

   226. 
  

  

  BROWN 
  WOOLLY 
  SPIDER 
  MONKEY. 
  

  

  Type 
  locality, 
  "le 
  Bresil." 
  Type 
  in 
  Paris 
  Museum. 
  

  

  Geogr. 
  Distr. 
  South 
  eastern 
  Brazil. 
  Cape 
  St. 
  Roque 
  to 
  Rio 
  de 
  

   Janeiro. 
  

  

  Genl. 
  Char. 
  Size 
  large; 
  face 
  naked; 
  thumb 
  rudimentary 
  or 
  

   absent 
  ; 
  hairs 
  of 
  head 
  short, 
  directed 
  backward. 
  

  

  Color. 
  Varying 
  somewhat 
  among 
  individuals. 
  Head 
  blackish 
  

   brown 
  washed 
  with 
  yellow, 
  or 
  dark 
  gray 
  washed 
  with 
  brown, 
  or 
  with 
  

   the 
  forehead 
  and 
  nape 
  orange 
  rufous, 
  and 
  top 
  of 
  head 
  chestnut 
  ; 
  upper 
  

   parts 
  dark 
  gray 
  ; 
  limbs 
  gray 
  of 
  varying 
  intensity, 
  some 
  specimens 
  when 
  

   the 
  head 
  is 
  reddish 
  have 
  the 
  limbs 
  and 
  tail 
  rufous, 
  in 
  others 
  the 
  tail 
  is 
  

   a 
  yellowish 
  gray; 
  under 
  parts 
  pale 
  or 
  yellowish 
  gray 
  or 
  washed 
  with 
  

   rufous; 
  base 
  of 
  tail 
  beneath 
  varying 
  from 
  pale 
  gray 
  to 
  black; 
  hands 
  

   and 
  feet 
  yellowish 
  gray 
  with 
  the 
  fingers 
  and 
  toes 
  chestnut, 
  or 
  yellowish 
  

   brown; 
  an 
  all 
  reddish 
  color 
  does 
  not 
  seem 
  to 
  indicate 
  sex, 
  for 
  some 
  

   females 
  are 
  more 
  richly 
  colored 
  than 
  the 
  males, 
  that 
  is, 
  exhibit 
  more 
  

   rufous 
  shades 
  and 
  deeper 
  tints 
  generally. 
  The 
  prevailing 
  color 
  of 
  the 
  

   major 
  portion 
  of 
  examples 
  is 
  a 
  yellowish 
  gray 
  or 
  ashy 
  brown. 
  

  

  Measurements. 
  Total 
  length, 
  1,280; 
  tail, 
  670; 
  foot, 
  150. 
  Skull: 
  

   total 
  length, 
  115; 
  occipito-nasal 
  length, 
  94; 
  Hensel, 
  87; 
  intertemporal 
  

   width, 
  47; 
  palatal 
  length, 
  38; 
  breadth 
  of 
  braincase, 
  61 
  ; 
  median 
  length 
  

   of 
  nasals, 
  19 
  ; 
  zygomatic 
  width, 
  77 
  ; 
  length 
  of 
  upper 
  molar 
  series, 
  33 
  ; 
  

   length 
  of 
  mandible, 
  85 
  ; 
  length 
  of 
  lower 
  molar 
  series, 
  37. 
  

  

  The 
  type 
  of 
  the 
  species 
  is 
  in 
  the 
  Paris 
  Museum 
  and 
  was 
  presented 
  

   to 
  the 
  Institution 
  in 
  1806, 
  over 
  one 
  hundred 
  years 
  ago 
  by 
  its 
  describer 
  

  

  