﻿148 
  PAPIO 
  

  

  of 
  zygoma, 
  straight, 
  not 
  flaring 
  outward 
  at 
  bottom 
  as 
  in 
  the 
  skull 
  of 
  

   allied 
  species; 
  rostrum 
  broader 
  posteriorly; 
  palate 
  of 
  equal 
  width 
  

   throughout 
  its 
  length; 
  orbital 
  ridge 
  straight, 
  not 
  depressed 
  in 
  center; 
  

   septum 
  narrower, 
  orbits 
  more 
  round. 
  

  

  Color. 
  Adult 
  Male. 
  Face 
  flesh 
  color; 
  callosities 
  red; 
  forehead 
  

   covered 
  with 
  black 
  hairs 
  banded 
  with 
  white, 
  this 
  color 
  rising 
  to 
  the 
  

   crown 
  in 
  the 
  shape 
  of 
  a 
  pyramid 
  coming 
  to 
  a 
  point 
  on 
  crown 
  of 
  the 
  

   head; 
  hairs 
  on 
  cheeks 
  and 
  sides 
  of 
  head 
  long, 
  stiff, 
  very 
  dense, 
  rising 
  

   upwards 
  in 
  enormous 
  tufts 
  above 
  head, 
  yellowish 
  white 
  at 
  base 
  

   grading 
  into 
  buffy 
  at 
  tips 
  ; 
  hind 
  neck 
  and 
  mantle 
  pale 
  reddish 
  brown, 
  

   hairs 
  with 
  a 
  band 
  of 
  white 
  succeeded 
  by 
  a 
  subterminal 
  one 
  of 
  black 
  

   and 
  tip 
  silvery 
  white 
  ; 
  towards 
  the 
  lower 
  back 
  the 
  color 
  darkens 
  into 
  a 
  

   cinnamon 
  banded 
  with 
  lighter 
  cinnamon, 
  and 
  tipped 
  with 
  the 
  same- 
  

   upper 
  part 
  of 
  rump 
  ochraceous 
  buff 
  paler 
  than 
  the 
  mantle 
  ; 
  lower 
  rump 
  

   and 
  base 
  of 
  tail 
  silvery 
  white; 
  sides 
  of 
  jaw 
  with 
  hairs 
  long 
  and 
  dense, 
  

   yellowish 
  white 
  ; 
  throat 
  more 
  sparsely 
  covered 
  with 
  hairs 
  of 
  the 
  same 
  

   color; 
  chest 
  dark 
  gray, 
  hairs 
  banded 
  with 
  black, 
  and 
  white 
  tips; 
  

   abdomen 
  ochraceous, 
  arms 
  and 
  hands 
  like 
  forehead, 
  grizzled, 
  hairs 
  

   banded 
  with 
  black 
  and 
  white; 
  tail 
  grizzled 
  russet 
  and 
  white, 
  tuft 
  

   russet. 
  Ex 
  type 
  British 
  Museum. 
  

  

  Measurements. 
  Total 
  length, 
  1,322; 
  tail, 
  572; 
  foot, 
  188; 
  ear, 
  59, 
  

   (Collector). 
  Skull: 
  total 
  length, 
  180.4; 
  occipito-nasal 
  length, 
  147.9; 
  

   Hensel, 
  125.7; 
  intertemporal 
  width, 
  56.6; 
  width 
  of 
  braincase, 
  80; 
  

   length 
  of 
  rostrum, 
  91.2; 
  width 
  of 
  rostrum 
  posteriorly, 
  46.6; 
  zygomatic 
  

   width, 
  119.7; 
  palatal 
  length, 
  76.8; 
  median 
  length 
  of 
  nasals, 
  52.1 
  ; 
  length 
  

   of 
  upper 
  molar 
  series, 
  44.6 
  ; 
  size 
  of 
  last 
  upper 
  molar 
  crown, 
  10 
  x 
  8.5 
  ; 
  

   length 
  of 
  mandible, 
  136.1 
  ; 
  length 
  of 
  lower 
  molar 
  series, 
  57; 
  size 
  of 
  last 
  

   lower 
  molar 
  crown, 
  13.5 
  x 
  8.5. 
  Ex 
  type 
  British 
  Museum. 
  

  

  The 
  type 
  is 
  a 
  very 
  fine 
  specimen 
  of 
  an 
  adult 
  male. 
  As 
  shown 
  by 
  

   the 
  description 
  it 
  differs 
  in 
  every 
  way 
  from 
  the 
  Abyssinian 
  Hamadryas 
  

   and 
  also 
  from 
  the 
  Arabian, 
  as 
  the 
  affinities 
  of 
  the 
  latter 
  seem 
  to 
  be 
  

   altogether 
  with 
  the 
  Abyssinian 
  animal 
  and 
  not 
  with 
  the 
  present 
  species. 
  

   The 
  light 
  reddish 
  mantle, 
  and 
  parti-colored 
  rump 
  of 
  ochraceous 
  buff 
  

   and 
  silvery 
  white, 
  cause 
  it 
  to 
  be 
  very 
  conspicuous 
  when 
  placed 
  among 
  

   examples 
  of 
  the 
  Hamadryas 
  baboon. 
  The 
  type 
  was 
  procured 
  by 
  Mr. 
  D. 
  

   Drake-Brockman 
  after 
  whom 
  I 
  had 
  much 
  pleasure 
  in 
  naming 
  it. 
  I 
  

   saw 
  this 
  apparently 
  same 
  species 
  frequently 
  in 
  Durban, 
  Somaliland, 
  

   and 
  it 
  was 
  the 
  only 
  species 
  of 
  baboon 
  inhabiting 
  the 
  country 
  until 
  the 
  

   valley 
  of 
  the 
  Shebeyleh 
  is 
  reached. 
  It 
  lives 
  among 
  the 
  rocks, 
  and 
  it 
  is 
  

   seldom 
  that 
  an 
  individual 
  is 
  found 
  far 
  from 
  some 
  rocky 
  ledge 
  to 
  

  

  