﻿MAMMALS 
  OF 
  NORTHERN 
  COLOMBIA 
  — 
  HERSHKOVITZ 
  389 
  

  

  specimen, 
  squamosal 
  process 
  of 
  zygomatic 
  arch 
  and 
  glenoid 
  process 
  

   of 
  left 
  side 
  are 
  absent. 
  Posterior 
  portion 
  of 
  jugal, 
  together 
  with 
  a 
  

   remaining 
  fragment 
  of 
  squamous 
  portion 
  have 
  formed 
  a 
  new 
  articula- 
  

   tion 
  with 
  temporal 
  portion 
  of 
  brain 
  case. 
  As 
  an 
  accommodation 
  for 
  

   the 
  shortened 
  arch, 
  the 
  rostrum 
  is 
  distorted 
  to 
  the 
  left. 
  Premolars 
  

   of 
  left 
  side 
  are 
  bunched 
  together 
  with 
  last 
  (?) 
  premolar 
  situated 
  

   lingually 
  between 
  first 
  and 
  second. 
  There 
  is 
  a 
  diastema 
  between 
  

   PM^andM^ 
  

  

  Rio 
  San 
  Pedro, 
  Norosi 
  (3 
  adult 
  females): 
  Indistinguishable 
  from 
  the 
  

   above 
  except 
  rumps 
  average 
  slightly 
  darker, 
  more 
  differentiated 
  from 
  

   middle 
  portion 
  of 
  back. 
  

  

  Measurements.- 
  — 
  Head 
  and 
  body, 
  519, 
  521, 
  515; 
  tail, 
  605, 
  629, 
  612; 
  

   hind 
  foot, 
  146, 
  140, 
  159; 
  ear, 
  34, 
  34, 
  39; 
  greatest 
  length 
  of 
  skull, 
  106.3, 
  

   106.5, 
  109.6; 
  condylobasal 
  length, 
  96.8, 
  96.3, 
  99.1; 
  zygomatic 
  breadth, 
  

   66.3, 
  67.8, 
  69.4; 
  length 
  of 
  brain 
  case, 
  67.9, 
  67.4, 
  68.0; 
  mastoidal 
  width 
  

   of 
  brain 
  case, 
  50.1, 
  57.5, 
  52.1; 
  greatest 
  width 
  across 
  maxillary 
  tooth 
  

   rows, 
  34.1, 
  37.7, 
  36.3; 
  length 
  of 
  maxillary 
  tooth 
  row 
  (C-M^), 
  39.8, 
  

   37.5. 
  39.6 
  mm. 
  

  

  Remarks. 
  — 
  The 
  specimens 
  were 
  taken 
  in 
  the 
  foothills 
  of 
  the 
  Cordil- 
  

   lera 
  Central 
  at 
  an 
  altitude 
  between 
  150 
  and 
  175 
  meters 
  above 
  sea 
  

   level. 
  

  

  La 
  Gloria, 
  Rio 
  Magdalena 
  (2 
  males, 
  1 
  immature; 
  1 
  female): 
  Prac- 
  

   tically 
  identical 
  with 
  the 
  Rio 
  San 
  Pedro 
  series 
  except 
  base 
  of 
  hairs 
  of 
  

   middle 
  part 
  of 
  back 
  paler 
  in 
  adult 
  male, 
  darker 
  in 
  immature, 
  and 
  

   lower 
  half 
  of 
  lateral 
  fringe 
  of 
  immature 
  not 
  sharply 
  defined 
  from 
  side 
  

   of 
  body. 
  

  

  Measurements. 
  — 
  Those 
  of 
  the 
  adult 
  male 
  followed 
  by 
  those 
  of 
  the 
  

   female: 
  Head 
  and 
  body, 
  534, 
  477; 
  tail, 
  559 
  (imperfect), 
  633; 
  hind 
  

   foot, 
  152, 
  130; 
  ear, 
  36, 
  33; 
  greatest 
  length 
  of 
  skull, 
  118.6, 
  100.7; 
  

   condylobasal 
  length, 
  110.2, 
  89.1; 
  zygomatic 
  breadth, 
  77.8, 
  66.8; 
  length 
  

   of 
  brain 
  case, 
  76.6, 
  69.7; 
  mastoidal 
  width 
  of 
  brain 
  case, 
  59.3, 
  50.9; 
  

   greatest 
  width 
  across 
  maxillary 
  tooth 
  rows, 
  39.2, 
  35.7; 
  length 
  of 
  max- 
  

   illary 
  tooth 
  row, 
  40.8, 
  38.9 
  mm. 
  

  

  Remarks. 
  — 
  The 
  original 
  series 
  of 
  Stentor 
  chrysurus 
  Geoffroy, 
  con- 
  

   sisting 
  of 
  two 
  adults 
  and 
  one 
  immature, 
  was 
  collected 
  by 
  Plee 
  and 
  

   sent 
  from 
  the 
  Antilles 
  in 
  1826 
  after 
  the 
  collector's 
  death. 
  Only 
  the 
  

   adults, 
  both 
  mounted, 
  are 
  still 
  preserved 
  in 
  the 
  Paris 
  Museum. 
  No 
  

   original 
  data 
  accompanied 
  the 
  specimens 
  except 
  for 
  a 
  tag 
  attached 
  to 
  

   one 
  of 
  them 
  with 
  the 
  notation 
  that 
  its 
  local 
  name 
  was 
  araguato. 
  This 
  

   is 
  the 
  name 
  by 
  which 
  the 
  red 
  howler 
  is 
  known 
  in 
  Venezuela. 
  Natives 
  

   of 
  Colombia 
  call 
  this 
  monkey 
  mono 
  Colorado, 
  or 
  simply 
  mono. 
  P16e 
  

   could 
  have 
  become 
  familiar 
  with 
  the 
  name 
  araguato 
  during 
  his 
  sojourn 
  

   in 
  Venezuela 
  and, 
  later, 
  applied 
  the 
  term 
  to 
  the 
  howlers 
  collected 
  in 
  

   Colombia. 
  It 
  has 
  been 
  shown 
  that 
  other 
  mammals 
  collected 
  by 
  Plee 
  

  

  