﻿152 
  PAPIO 
  

  

  orbits 
  only 
  slightly 
  broader 
  than 
  widest 
  part 
  of 
  rostrum; 
  occipital 
  

   region 
  beneath, 
  pyramidal, 
  not 
  rounded 
  posteriorly; 
  no 
  sagittal 
  crest, 
  

   but 
  ridges 
  are 
  continued 
  from 
  outer 
  side 
  of 
  orbits, 
  and 
  meet 
  on 
  the 
  

   interparietal 
  ; 
  zygomatic 
  arches 
  not 
  widely 
  spread 
  ; 
  pterygoid 
  fossa 
  long 
  

   and 
  narrow; 
  palatal 
  arch 
  rounded; 
  palate 
  widest 
  anteriorly; 
  tooth 
  

   rows 
  straight; 
  canines 
  heavy, 
  broad 
  and 
  rather 
  short; 
  molar 
  teeth 
  

   larger 
  than 
  in 
  P. 
  sphinx. 
  

  

  This 
  skull 
  differs 
  from 
  that 
  of 
  the 
  Mandrill 
  in 
  many 
  particulars, 
  

   the 
  rostral 
  region 
  is 
  much 
  longer 
  and 
  wider 
  ; 
  the 
  central 
  ridge 
  is 
  flatter, 
  

   being 
  below 
  the 
  top 
  of 
  the 
  lateral 
  ones 
  for 
  their 
  entire 
  length 
  ; 
  narial 
  

   opening 
  broader 
  and 
  shorter; 
  nasals 
  broader 
  anteriorly; 
  central 
  part 
  

   of 
  orbital 
  ridges 
  not 
  depressed, 
  making 
  the 
  orbits 
  rounder; 
  braincase 
  

   broader 
  and 
  more 
  rounded 
  posteriorly 
  and 
  on 
  a 
  level 
  with 
  the 
  orbital 
  

   ridge, 
  and 
  rising 
  gradually 
  to 
  occiput 
  which 
  is 
  considerably 
  higher 
  than 
  

   orbital 
  ridge, 
  while 
  the 
  braincase 
  of 
  P. 
  sphinx 
  curves 
  downward 
  to 
  

   the 
  occiput 
  which 
  lies 
  lower 
  than 
  the 
  orbital 
  ridge, 
  and 
  in 
  the 
  superior 
  

   outline 
  of 
  the 
  braincase 
  these 
  skulls 
  are 
  totally 
  unlike; 
  bony 
  palate 
  

   not 
  so 
  contracted 
  posteriorly; 
  basioccipital 
  more 
  abruptly 
  descending 
  

   to 
  pterygoid 
  fossa; 
  tooth 
  rows 
  much 
  longer; 
  occipital 
  region 
  much 
  

   more 
  slanting 
  than 
  that 
  of 
  P. 
  sphinx 
  which 
  is 
  nearly 
  perpendicular. 
  

   The 
  second 
  upper 
  molar 
  is 
  much 
  larger, 
  and 
  the 
  second 
  lower 
  molar 
  

   smaller, 
  than 
  the 
  corresponding 
  teeth 
  of 
  the 
  species 
  compared. 
  It 
  will 
  

   be 
  seen 
  from 
  the 
  above 
  that 
  the 
  skulls 
  of 
  the 
  two 
  species 
  are 
  quite 
  

   different 
  in 
  nearly 
  all 
  respects. 
  

  

  Measurements. 
  Skull 
  : 
  total 
  length, 
  228 
  ; 
  occipito-nasal 
  length, 
  

   185 
  ; 
  Hensel, 
  169 
  ; 
  zygomatic 
  width, 
  124.9 
  ; 
  intertemporal 
  width, 
  61 
  ; 
  

   length 
  of 
  rostrum, 
  122; 
  breadth 
  of 
  rostrum, 
  71.17; 
  length 
  of 
  rostral 
  

   ridges, 
  83 
  ; 
  greatest 
  width 
  of 
  orbits, 
  72 
  ; 
  greatest 
  width 
  of 
  braincase, 
  

   79 
  ; 
  median 
  length 
  of 
  nasals, 
  89 
  ; 
  palatal 
  length, 
  107.3 
  ; 
  length 
  of 
  upper 
  

   canines, 
  32.5 
  ; 
  length 
  of 
  upper 
  molar 
  series, 
  55.9 
  ; 
  length 
  of 
  mandible, 
  

   167 
  ; 
  length 
  of 
  lower 
  molar 
  series, 
  78. 
  

  

  Papio 
  LEucoPELaEus 
  (F. 
  Cuvier). 
  

  

  ? 
  Simla 
  {Papio) 
  cinereus 
  Kerr, 
  Anim. 
  Kingd., 
  1792, 
  p. 
  62; 
  Allen, 
  

   Bull. 
  Amer. 
  Mus. 
  Nat. 
  Hist., 
  N. 
  Y., 
  VII, 
  1895, 
  p. 
  185. 
  

  

  Simia 
  leucophcea 
  F. 
  Cuv., 
  Ann. 
  Mus. 
  Hist. 
  Nat. 
  Paris, 
  IX, 
  1807, 
  

   p. 
  477 
  ; 
  Fisch., 
  Syn. 
  Mamm, 
  1829, 
  p. 
  37. 
  

  

  Cynocephalus 
  leucophceus 
  F. 
  Cuv., 
  Hist. 
  Nat. 
  Mamm., 
  Livr. 
  IV, 
  

   1807, 
  p. 
  637 
  ; 
  2nd 
  ed., 
  1833, 
  pp. 
  135, 
  142, 
  pis. 
  XLVIII, 
  XLIX, 
  

   L 
  and 
  LI 
  ; 
  Desm., 
  Mamm., 
  1820, 
  p. 
  71 
  ; 
  E. 
  Geoff., 
  Cours 
  Hist. 
  

  

  