﻿PAP 
  10 
  147 
  

  

  Papio 
  hamadryas 
  arabicus 
  Thomas. 
  

  

  Papio 
  arabicus 
  Thos., 
  Proc. 
  Zool. 
  Soc. 
  Lond., 
  1899, 
  p. 
  929 
  : 
  1900, 
  

   p. 
  96. 
  

  

  ARABIAN 
  HAMADRYAS 
  BABOON. 
  

  

  Type 
  locality. 
  Sixty 
  miles 
  north 
  west 
  of 
  Aden, 
  Arabia. 
  Type 
  in 
  

   British 
  Museum. 
  

  

  Geogr. 
  Distr. 
  Arabia. 
  Range 
  unknown. 
  

  

  Genl. 
  Char. 
  Similar 
  to 
  P. 
  hamadryas 
  but 
  smaller 
  in 
  size. 
  Type 
  

   in 
  British 
  Museum. 
  

  

  Color. 
  The 
  type 
  is 
  a 
  young 
  female, 
  without 
  any 
  mane 
  and 
  gives 
  

   very 
  little 
  idea 
  of 
  the 
  adult 
  animal. 
  The 
  following 
  description 
  is 
  there- 
  

   fore 
  taken 
  from 
  an 
  adult 
  male 
  captured 
  at 
  Lakej, 
  near 
  Aden, 
  and 
  now 
  

   in 
  the 
  British 
  Museum 
  Collection 
  : 
  Face 
  bare. 
  Top 
  of 
  head, 
  starting 
  

   in 
  a 
  narrow 
  line 
  from 
  the 
  forehead 
  and 
  spreading 
  out 
  towards 
  the 
  

   back 
  of 
  the 
  head, 
  blackish 
  brown, 
  hairs 
  tipped 
  with 
  yellowish 
  white, 
  

   rest 
  of 
  head 
  and 
  mane, 
  which 
  covers 
  practically 
  the 
  whole 
  of 
  the 
  upper 
  

   parts 
  light 
  grayish 
  brown, 
  the 
  hairs 
  being 
  light 
  brown 
  ringed 
  with 
  gray- 
  

   ish 
  white; 
  arms 
  above 
  elbows, 
  legs 
  and 
  back, 
  pale 
  brownish 
  gray, 
  the 
  

   hairs 
  ringed 
  similarly 
  to 
  those 
  of 
  the 
  mane; 
  forearms 
  and 
  hands 
  iron 
  

   gray, 
  nearly 
  black 
  ; 
  feet 
  pale 
  brown 
  and 
  gray 
  ; 
  rump 
  darker 
  brown 
  than 
  

   the 
  mane; 
  under 
  parts 
  pale 
  gray, 
  becoming 
  pale 
  brown 
  at 
  the 
  loins. 
  

   Another 
  specimen 
  has 
  the 
  mane 
  and 
  upper 
  parts 
  a 
  uniform 
  reddish 
  

   brown, 
  generally 
  darker 
  throughout 
  than 
  the 
  one 
  described. 
  

  

  Measurements. 
  Skull: 
  total 
  length, 
  153; 
  occipito-nasal 
  length, 
  

   131; 
  Hensel, 
  140; 
  zygomatic 
  width, 
  98; 
  intertemporal 
  width, 
  48; 
  

   palatal 
  length, 
  66; 
  breadth 
  of 
  braincase, 
  72; 
  median 
  length 
  of 
  nasals, 
  

   50 
  ; 
  length 
  of 
  upper 
  molar 
  series, 
  46 
  ; 
  length 
  of 
  mandible, 
  112 
  ; 
  length 
  of 
  

   lower 
  molar 
  series, 
  56. 
  Ex 
  type 
  in 
  British 
  Museum. 
  

  

  In 
  general 
  appearance 
  this 
  baboon 
  resembles 
  the 
  P. 
  hamadryas 
  

   of 
  the 
  African 
  continent, 
  but 
  is 
  considerably 
  smaller. 
  

  

  Papio 
  brockmani 
  Elliot. 
  

  

  Papio 
  brockmani 
  Elliot, 
  Ann. 
  Mag. 
  Nat. 
  Hist., 
  IV, 
  1909, 
  8th 
  Ser., 
  

   p. 
  248. 
  

  

  Type 
  locality. 
  Derra 
  Dawa, 
  Somaliland. 
  Altitude 
  3,500 
  feet. 
  

   Type 
  in 
  British 
  Museum. 
  

  

  Genl. 
  Char. 
  Color 
  very 
  different 
  from 
  P. 
  hamadryas 
  inclined 
  to 
  

   reddish, 
  no 
  gray 
  on 
  mane. 
  Skull 
  compared 
  with 
  one 
  of 
  P. 
  hamadryas 
  

   obtained 
  by 
  Riippell, 
  has 
  a 
  shorter 
  facial 
  region 
  ; 
  rounded 
  zygomatic 
  

   arches, 
  not 
  squared 
  as 
  in 
  the 
  other; 
  straight 
  tooth 
  rows, 
  not 
  curved, 
  

   and 
  smaller 
  teeth. 
  Outer 
  edge 
  of 
  lachrymal, 
  from 
  orbital 
  ridge 
  to 
  root 
  

  

  