﻿384 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  JVIUSEUM 
  vol.98 
  

  

  the 
  RIo 
  Tarra 
  of 
  Amer-anthropoides 
  loysi. 
  Both 
  streams 
  are 
  m 
  the 
  

   same 
  general 
  region 
  on 
  the 
  Colombian- 
  Venezuelan 
  border, 
  both 
  flow 
  

   in 
  the 
  same 
  direction 
  about 
  40 
  kilometers 
  apart 
  and 
  empty 
  into 
  the 
  

   Rio 
  Catatumbo. 
  Spider 
  monkeys 
  collected 
  here 
  are 
  representative 
  of 
  

   Amer-anthropoides 
  loysi, 
  as 
  well 
  as 
  identical 
  with 
  those 
  taken 
  in 
  the 
  

   Rio 
  Magdalena 
  Valley. 
  Various 
  authors 
  have 
  already 
  indicated 
  the 
  

   identity 
  of 
  Amer-anthropoides 
  with 
  Ateles. 
  On 
  the 
  basis 
  of 
  the 
  present 
  

   series 
  Kellogg 
  and 
  Goldman 
  (1944, 
  p. 
  27) 
  have 
  shown 
  loysi 
  to 
  be 
  a 
  

   synonym 
  of 
  Ateles 
  belzebuth 
  hybridus. 
  

  

  GENUS 
  ALOUATTA 
  LACEPfiDE: 
  HOWLERS 
  

  

  Colombian 
  representatives 
  of 
  Alouatta 
  are 
  the 
  red 
  A. 
  seniculus 
  

   seniculus 
  Linnaeus 
  and 
  the 
  blackish 
  A. 
  palliata 
  aequatorialis 
  Festa. 
  

   Only 
  the 
  red 
  howler 
  was 
  found 
  by 
  the 
  author 
  in 
  northern 
  Colombia. 
  

   The 
  60 
  examples 
  taken 
  are 
  compared 
  with 
  A. 
  palliata 
  and 
  listed 
  and 
  

   described 
  by 
  localities. 
  A 
  separate 
  section 
  of 
  this 
  report 
  is 
  devoted 
  

   to 
  a 
  description 
  of 
  the 
  hyoid 
  apparatus 
  of 
  howlers. 
  

  

  ALOUATTA 
  SENICULUS 
  SENICULUS 
  Linnaeus 
  

  

  Simla 
  seniculus 
  Linnaeus, 
  Systems 
  naturae, 
  ed. 
  12, 
  p. 
  37, 
  1766. 
  

  

  Stentor 
  chrysurus 
  1. 
  Geoffroy, 
  M6m. 
  Mus. 
  Hist. 
  Nat. 
  Paris, 
  vol. 
  17, 
  p. 
  166, 
  

  

  (1828) 
  1829; 
  Mag. 
  Zool., 
  CI. 
  1, 
  pi. 
  7, 
  1832. 
  

   Myeetes 
  laniger 
  Gray, 
  Ann. 
  Mag. 
  Nat. 
  Hist., 
  vol. 
  16, 
  p. 
  219, 
  1845 
  (type 
  locality, 
  

  

  Colombia) 
  . 
  

   Alouatta 
  seniculus 
  rubicunda 
  Allen, 
  Bull. 
  Amer. 
  Mus. 
  Nat. 
  Hist., 
  vol. 
  20, 
  p. 
  458, 
  

  

  figs. 
  1, 
  3 
  (with 
  captions, 
  "rubiginosa," 
  lapsus 
  calami 
  for 
  rubicunda) 
  1904 
  

  

  (type 
  locality, 
  Bonda, 
  near 
  Santa 
  Marta, 
  Colombia). 
  

   Alouatta 
  seniculus 
  caucensis 
  Allen, 
  Bull. 
  Amer. 
  Mus. 
  Nat. 
  Hist., 
  vol. 
  20, 
  p. 
  462, 
  

  

  figs. 
  2, 
  4, 
  1904 
  (type 
  locality, 
  Charingo, 
  upper 
  Cauca 
  Valley, 
  Colombia). 
  

   Alouatta 
  seniculus 
  bogotensis 
  Allen, 
  Bull. 
  Amer, 
  Mus. 
  Nat. 
  Hist., 
  vol. 
  33, 
  p. 
  648, 
  

  

  1914 
  (type 
  locality, 
  Subfa, 
  Cundinamarca, 
  Colombia). 
  

   Alouatta 
  seniculus 
  caquetensis 
  Allen, 
  Bull. 
  Amer. 
  Mus. 
  Nat. 
  Hist., 
  vol. 
  33, 
  p. 
  650, 
  

  

  1914 
  (type 
  locality, 
  La 
  Muralla, 
  Caquetd, 
  Colombia). 
  

  

  Type 
  locality. 
  — 
  '' 
  Carthagenae 
  in 
  silvis 
  ad 
  fluvium," 
  department 
  of 
  

   Bolivar, 
  Colombia. 
  Lonnberg 
  (1941, 
  p. 
  8) 
  attempted 
  to 
  prove 
  that 
  

   the 
  type 
  locality 
  should 
  be 
  French 
  Guiana. 
  His 
  argument 
  was 
  

   founded 
  on 
  the 
  reference 
  by 
  Linnaeus 
  to 
  le 
  singe 
  rouge 
  de 
  Cayenne 
  of 
  

   Brisson 
  (1756, 
  p. 
  206), 
  and 
  his 
  apprehension 
  that 
  the 
  red 
  howler 
  of 
  

   Cartagena 
  might 
  be 
  specifically 
  distinct 
  from 
  that 
  of 
  the 
  Guianas. 
  

   Such 
  is 
  not 
  the 
  case. 
  All 
  red 
  howlers 
  of 
  northwestern 
  South 
  America 
  

   are 
  conspecific, 
  and 
  the 
  typical 
  form, 
  by 
  Linnaeus' 
  own 
  restriction, 
  is 
  

   the 
  one 
  inhabiting 
  the 
  Cartagena 
  region. 
  Cruz 
  Lima 
  (1945, 
  p. 
  66) 
  dis- 
  

   cussed 
  and 
  rejected 
  Lonnberg's 
  change 
  of 
  venue. 
  As 
  authority 
  for 
  

   the 
  Colombian 
  habitat 
  of 
  seniculus, 
  Linnaeus 
  cited 
  the 
  collector 
  and 
  

   botanist 
  Jacquin. 
  Humboldt 
  (1812, 
  p. 
  342) 
  added 
  the 
  following 
  

   information: 
  "Le 
  singe 
  appel6 
  Mono 
  Colorado 
  ou 
  Singe 
  rouge 
  k 
  Cartha- 
  

  

  