﻿PAPIO 
  145 
  

  

  grading 
  into 
  brown. 
  Ex 
  specimen 
  in 
  British 
  Museum, 
  procured 
  by 
  

   Riippell 
  in 
  Abyssinia 
  in 
  1836. 
  

  

  The 
  usual 
  coloring 
  of 
  this 
  baboon 
  is 
  much 
  lighter 
  than 
  the 
  example 
  

   described 
  above, 
  and 
  is 
  an 
  ashy 
  gray 
  on 
  mane, 
  and 
  upper 
  parts 
  washed 
  

   with 
  greenish, 
  the 
  hairs 
  ringed 
  with 
  black 
  and 
  greenish 
  gray 
  ; 
  fore 
  arms 
  

   and 
  legs 
  grayish 
  black 
  ; 
  under 
  side 
  of 
  body 
  grayish 
  white. 
  

  

  Riippell's 
  specimen 
  is 
  an 
  adult 
  male, 
  and 
  darker 
  in 
  color 
  than 
  is 
  

   generally 
  seen 
  among 
  individuals 
  of 
  this 
  species. 
  

  

  Measurements. 
  Skull: 
  total 
  length, 
  192; 
  occipito-nasal 
  length, 
  

   156; 
  Hensel, 
  133; 
  zygomatic 
  width, 
  113; 
  intertemporal 
  width, 
  52; 
  

   palatal 
  length, 
  84; 
  breadth 
  of 
  braincase, 
  82; 
  median 
  length 
  of 
  nasals, 
  

   68 
  ; 
  length 
  of 
  upper 
  molar 
  series, 
  50 
  ; 
  length 
  of 
  upper 
  canines, 
  32 
  ; 
  length 
  

   of 
  mandible, 
  139 
  ; 
  length 
  of 
  lower 
  molar 
  series, 
  65. 
  

  

  Both 
  sexes 
  of 
  this 
  species 
  have 
  large 
  air 
  sacs 
  or 
  pouches 
  in 
  the 
  

   neck, 
  which 
  reach 
  down 
  nearly 
  to 
  the 
  arm 
  pits. 
  An 
  opening 
  above 
  the 
  

   larynx 
  connects 
  these 
  with 
  the 
  windpipe. 
  

  

  Blanford 
  in 
  his 
  Observations 
  on 
  the 
  Geology 
  and 
  Zoology 
  of 
  

   Abyssinia 
  (1. 
  c.) 
  gives 
  the 
  following 
  account 
  of 
  this 
  baboon: 
  'The 
  

   great 
  Dog-faced 
  Baboon, 
  the 
  Sacred 
  Ape 
  (Thoth) 
  of 
  the 
  ancient 
  

   Egyptians, 
  is 
  by 
  far 
  the 
  commonest 
  Monkey 
  throughout 
  the 
  portion 
  of 
  

   Abyssinia 
  traversed 
  by 
  me. 
  It 
  was 
  met 
  with 
  everywhere 
  from 
  the 
  

   plains 
  around 
  Annesley 
  Bay 
  to 
  the 
  top 
  of 
  the 
  Delanta 
  plateau, 
  although 
  

   most 
  abundant, 
  perhaps, 
  in 
  the 
  tropical 
  and 
  subtropical 
  portions 
  of 
  the 
  

   country. 
  I 
  saw 
  a 
  small 
  herd 
  close 
  to 
  Theodore's 
  old 
  camp 
  at 
  Baba, 
  on 
  

   the 
  Delanta 
  plateau 
  at 
  above 
  9,000 
  feet 
  of 
  elevation. 
  In 
  the 
  passes 
  

   leading 
  to 
  the 
  tableland 
  from 
  the 
  coast 
  immense 
  numbers 
  were 
  con- 
  

   stantly 
  seen, 
  and 
  the 
  animals 
  evidently 
  keep 
  to 
  the 
  sides 
  of 
  rocky 
  

   ravines. 
  

  

  "The 
  herds 
  vary 
  in 
  number 
  ; 
  some 
  cannot 
  include 
  much 
  less 
  than 
  

   250 
  to 
  300 
  monkeys 
  of 
  all 
  ages. 
  The 
  old 
  males 
  are 
  always 
  most 
  con- 
  

   spicuous 
  animals, 
  all 
  the 
  forepart 
  of 
  the 
  body 
  being 
  covered 
  with 
  long 
  

   hair. 
  They 
  usually 
  take 
  the 
  lead 
  when 
  the 
  troop 
  is 
  moving; 
  some 
  of 
  

   them 
  also 
  bringing 
  up 
  the 
  rear; 
  others 
  placing 
  themselves 
  on 
  high 
  

   rocks 
  or 
  bushes, 
  and 
  keeping 
  a 
  sharp 
  look-out 
  after 
  enemies. 
  A 
  troop 
  

   collected 
  on 
  a 
  rocky 
  crag 
  presents 
  a 
  most 
  singular 
  appearance. 
  I 
  

   several 
  times 
  saw 
  large 
  numbers 
  assembled 
  around 
  springs 
  in 
  the 
  

   evening 
  in 
  the 
  thirsty 
  Shoho 
  country 
  between 
  Komayli 
  and 
  Sanafe. 
  

   On 
  such 
  occasions 
  every 
  jutting 
  rock, 
  every 
  little 
  stone 
  more 
  prominent 
  

   than 
  the 
  rest, 
  was 
  occupied 
  by 
  a 
  patriarch 
  of 
  the 
  herd 
  who 
  sat, 
  with 
  

   the 
  gravity 
  and 
  watchfulness 
  befitting 
  his 
  grizzled 
  hair, 
  waiting 
  

  

  