﻿238 
  PITHECUS 
  

  

  In 
  general 
  appearance 
  this 
  Macaque 
  is 
  totally 
  unlike 
  P. 
  sirhas- 
  

   senensis, 
  and 
  while 
  the 
  skulls 
  of 
  the 
  two 
  forms 
  have 
  a 
  general 
  resem- 
  

   blance 
  to 
  each 
  other, 
  the 
  present 
  species 
  has 
  a 
  narrower 
  braincase, 
  

   longer 
  tooth 
  rows, 
  and 
  smaller 
  incisors, 
  these 
  being 
  intermediate 
  

   between 
  the 
  species 
  just 
  named 
  and 
  P. 
  lautensis. 
  One 
  specimen 
  only 
  

   was 
  obtained 
  by 
  Dr. 
  Abbott. 
  

  

  PlTHECUS 
  LAUTENSIS 
  Elliot. 
  

  

  Pithecus 
  lautensis 
  Elliot, 
  Proc. 
  U. 
  S. 
  Nat. 
  Mus., 
  XXXVIII, 
  1910, 
  

   p. 
  345. 
  

  

  LAUT 
  ISLAND 
  MACAQUE. 
  

  

  Type 
  locality. 
  Pulo 
  Laut, 
  Natuna 
  Islands. 
  Type 
  in 
  United 
  

   States 
  National 
  Museum. 
  

  

  Genl. 
  Char. 
  Resembling 
  P. 
  lingungensis 
  but 
  not 
  so 
  red; 
  skull 
  

   entirely 
  different. 
  

  

  Color. 
  Top 
  of 
  head 
  and 
  upper 
  parts 
  tawny 
  ochraceous 
  and 
  brown- 
  

   ish 
  black 
  ; 
  arms 
  and 
  hands 
  bluish 
  gray 
  ; 
  hairs 
  tipped 
  with 
  cream 
  buff 
  ; 
  

   outer 
  side 
  of 
  thighs 
  unicolor 
  to 
  back, 
  legs 
  olive 
  gray; 
  feet 
  darker, 
  

   being 
  brownish 
  gray 
  ; 
  under 
  parts 
  and 
  inner 
  side 
  of 
  limbs, 
  silvery 
  gray 
  ; 
  

   tail 
  above 
  blackish 
  brown 
  becoming 
  gradually 
  paler 
  towards 
  tip, 
  

   beneath 
  whitish 
  gray. 
  Ex 
  type 
  United 
  States 
  National 
  Museum. 
  

  

  Measurements. 
  Total 
  length, 
  1,018; 
  tail, 
  548. 
  Skull: 
  total 
  length, 
  

   112.2; 
  occipito-nasal 
  length, 
  95.3; 
  Hensel, 
  80.7; 
  intertemporal 
  width, 
  

   39.8; 
  zygomatic 
  width, 
  82.7; 
  palatal 
  length, 
  45.7; 
  breadth 
  of 
  brain- 
  

   case, 
  54.5 
  ; 
  median 
  length 
  of 
  nasals, 
  27.1 
  ; 
  length 
  of 
  upper 
  molar 
  series, 
  

   27.1 
  ; 
  length 
  of 
  mandible, 
  84.1 
  ; 
  length 
  of 
  lower 
  molar 
  series, 
  36.1. 
  Ex 
  

   type 
  United 
  States 
  National 
  Museum. 
  

  

  This 
  Macaque 
  is 
  very 
  similar 
  in 
  color 
  on 
  body 
  and 
  head 
  to 
  P. 
  

   lingungensis, 
  but 
  is 
  very 
  different 
  in 
  the 
  color 
  of 
  the 
  limbs, 
  arms 
  

   particularly. 
  The 
  main 
  differences 
  are 
  to 
  be 
  found 
  in 
  the 
  skull. 
  This 
  

   has 
  a 
  very 
  broad 
  face, 
  and 
  space 
  across 
  orbits 
  very 
  wide 
  ; 
  orbital 
  ridge 
  

   much 
  heavier 
  ; 
  the 
  braincase 
  is 
  larger 
  in 
  every 
  way, 
  and 
  the 
  root 
  of 
  the 
  

   zygomata 
  broader 
  and 
  heavier 
  ; 
  palate 
  is 
  wider 
  ; 
  basioccipital 
  and 
  basi- 
  

   sphenoid 
  broader 
  and 
  longer, 
  and 
  the 
  zygomatic 
  arch 
  more 
  widely 
  

   spread; 
  the 
  outer 
  edge 
  of 
  the 
  occipital 
  region 
  in 
  P. 
  lingungensis 
  is 
  

   rounded, 
  but 
  pyramidal 
  without 
  the 
  cap 
  in 
  the 
  present 
  species 
  ; 
  incisors 
  

   smaller: 
  

  

  Altogether 
  the 
  two 
  skulls 
  are 
  as 
  different 
  in 
  all 
  respects 
  as 
  two 
  

   crania 
  can 
  well 
  be 
  of 
  species 
  belonging 
  to 
  the 
  same 
  genus. 
  One 
  

   example 
  obtained 
  by 
  Dr. 
  Abbott. 
  

  

  