﻿62 
  LAGOTHRIX 
  

  

  is 
  also 
  in 
  the 
  Museum. 
  It 
  resembles 
  the 
  type, 
  but 
  is 
  slightly 
  darker 
  in 
  

   the 
  general 
  color. 
  

  

  Lagothrix 
  infumata 
  (Spix). 
  

  

  Gastrimargus 
  infumatus 
  Spix, 
  Simiar. 
  et 
  Vespert. 
  Bras., 
  1823, 
  p. 
  

   41, 
  pi. 
  XXIX 
  ; 
  Less., 
  Spec. 
  Mamm., 
  1840, 
  p. 
  126, 
  juv. 
  ; 
  Wagn., 
  

   Abhand. 
  Bayer. 
  Akad. 
  Munch., 
  V, 
  1848, 
  p. 
  417; 
  Id. 
  Schreb., 
  

   Saugth. 
  Suppl., 
  V, 
  1855, 
  p. 
  73. 
  

  

  Lagothrix 
  infumata 
  Schinz, 
  Syn. 
  Mamm., 
  I, 
  1844, 
  p. 
  71 
  ; 
  Pucher., 
  

   Rev. 
  Mag. 
  Zool., 
  1857, 
  p. 
  298 
  ; 
  Reichenb., 
  Vollstand. 
  Naturg. 
  

   Affen, 
  1862, 
  p. 
  72, 
  fig. 
  178 
  ; 
  Gray, 
  Cat. 
  Monkeys, 
  Lemurs 
  and 
  

   Fruit-eating 
  Bats, 
  Brit. 
  Mus., 
  1870, 
  p. 
  46; 
  Sclat, 
  Proc. 
  Zool. 
  

   Soc. 
  Lond., 
  1871, 
  p. 
  219; 
  von 
  Pelz., 
  Zool.-Bot. 
  Ges. 
  Wien, 
  

   1883, 
  Beiheft, 
  p. 
  7; 
  Forbes, 
  Handb. 
  Primates, 
  I, 
  1894, 
  p. 
  224. 
  

  

  Lagothrix 
  poppigii 
  Schinz, 
  Syn. 
  Mamm., 
  I, 
  1844, 
  p. 
  72; 
  Pucher., 
  

   Rev. 
  Mag. 
  Zool., 
  1857, 
  p. 
  298; 
  Schleg., 
  Mus. 
  Pays-Bas, 
  Simiae, 
  

   1876, 
  p. 
  164. 
  

  

  Lagothrix 
  geoifroyi 
  Schinz, 
  Syn. 
  Mamm., 
  I, 
  1844, 
  p. 
  71, 
  (nee 
  

   Pucheran). 
  

  

  Lagothrix 
  castelnaui 
  I. 
  Geoff, 
  et 
  Deville, 
  Compt. 
  Rend., 
  XXVII, 
  

   1848, 
  p. 
  498; 
  I. 
  Geoff., 
  Cat. 
  Primates, 
  1851, 
  p. 
  50; 
  Casteln., 
  

   Exped. 
  Amer. 
  Sud, 
  1855, 
  p. 
  5, 
  pi. 
  I 
  ; 
  Pucher., 
  Rev. 
  Mag. 
  Zool., 
  

   1857, 
  p. 
  289; 
  Reichenb., 
  Vollstand. 
  Naturg. 
  Affen, 
  1862, 
  p: 
  72. 
  

  

  BROWN 
  WOOLLY 
  MONKEY. 
  

  

  Type 
  locality. 
  Forests 
  near 
  the 
  Rio 
  Iga, 
  Upper 
  Amazon. 
  Type 
  

   in 
  Munich 
  Museum. 
  

  

  Geogr. 
  Distr. 
  Valley 
  of 
  the 
  Peruvian 
  Amazon; 
  Valley 
  of 
  the 
  

   Rio 
  Copataza, 
  and 
  near 
  Macas, 
  Ecuador. 
  

  

  Genl. 
  Char. 
  Under 
  parts 
  jet 
  black. 
  

  

  Color. 
  Top 
  and 
  sides 
  of 
  head, 
  chin, 
  neck, 
  upper 
  parts 
  of 
  body, 
  

   arms 
  to 
  elbows 
  and 
  upper 
  part 
  of 
  thighs 
  to 
  knees, 
  dark 
  reddish 
  brown 
  ; 
  

   forearms, 
  wrists, 
  hands, 
  back 
  of 
  thighs 
  and 
  legs, 
  ankles 
  and 
  feet 
  black 
  ; 
  

   tail 
  blackish 
  brown. 
  Most 
  of 
  the 
  under 
  parts 
  are 
  bare, 
  but 
  the 
  hair 
  

   remaining 
  from 
  lower 
  part 
  of 
  chest 
  to 
  groin 
  is 
  long 
  and 
  jet 
  black. 
  Ex 
  

   'type' 
  Munich 
  Museum, 
  nearest 
  in 
  color 
  to 
  Spix's 
  figure. 
  Another 
  

   specimen 
  also 
  marked 
  'Type,' 
  has 
  the 
  upper 
  part 
  of 
  breast 
  light 
  reddish 
  

   brown, 
  lower 
  breast 
  and 
  belly 
  jet 
  black. 
  

  

  Measurements. 
  Total 
  length, 
  1,180 
  ; 
  tail, 
  655 
  ; 
  foot, 
  150. 
  Mounted 
  

   specimen, 
  no 
  skull. 
  

  

  Spix's 
  Gastrimargus 
  infumatus 
  is 
  represented 
  in 
  the 
  Munich 
  

   Museum 
  by 
  four 
  examples 
  all 
  marked 
  'Types/ 
  They 
  are 
  not 
  all 
  alike 
  

  

  