﻿LASIOPYGA 
  365 
  

  

  the 
  other 
  parts 
  ; 
  the 
  white 
  and 
  black 
  speckling 
  of 
  the 
  upper 
  back 
  grades 
  

   into 
  ochraceous 
  and 
  black 
  on 
  middle 
  of 
  back, 
  and 
  continues 
  to 
  tail 
  and 
  

   flanks; 
  arms 
  and 
  hands 
  black; 
  the 
  inner 
  side 
  of 
  arms 
  from 
  shoulders 
  

   to 
  elbow 
  gray, 
  speckled 
  with 
  black; 
  on 
  the 
  arms 
  near 
  shoulders, 
  and 
  

   fore 
  arms 
  near 
  elbow 
  there 
  is 
  a 
  little 
  white 
  speckling 
  ; 
  chin 
  and 
  throat 
  

   buflfy 
  white 
  ; 
  under 
  parts 
  of 
  body 
  gray, 
  black 
  speckled 
  ; 
  anal 
  region 
  and 
  

   inner 
  side 
  of 
  thighs, 
  whitish 
  ; 
  rest 
  of 
  thighs 
  and 
  legs 
  below 
  knees 
  very 
  

   dark 
  gray, 
  speckled 
  with 
  white; 
  feet 
  jet 
  black; 
  tail 
  iron 
  gray 
  at 
  base, 
  

   remainder 
  jet 
  black. 
  Ex 
  specimen 
  from 
  Fort 
  Lister, 
  Milan 
  ji, 
  6,000 
  

   feet, 
  British 
  Museum. 
  

  

  Female. 
  Resembles 
  the 
  male 
  in 
  most 
  particulars, 
  but 
  has 
  the 
  root 
  

   of 
  the 
  tail 
  and 
  sides 
  of 
  the 
  callosities 
  rusty 
  red. 
  The 
  young 
  also 
  ex- 
  

   hibit 
  the 
  rusty 
  red 
  at 
  root 
  of 
  tail, 
  and 
  a 
  tinge 
  of 
  the 
  same 
  color 
  on 
  

   thighs, 
  and 
  the 
  under 
  parts 
  of 
  body 
  grayish 
  white 
  without 
  speckling, 
  

   thus 
  differing 
  considerably 
  from 
  the 
  adults. 
  

  

  Measurements. 
  Total 
  length, 
  1,500; 
  tail, 
  830; 
  foot, 
  150. 
  Skull: 
  

   total 
  length, 
  126 
  ; 
  occipito-nasal 
  length, 
  98.6 
  ; 
  intertemporal 
  width, 
  44.7 
  ; 
  

   Hensel, 
  88.8; 
  zygomatic 
  width, 
  80.8; 
  width 
  of 
  braincase, 
  62; 
  median 
  

   length 
  of 
  nasals, 
  2 
  ; 
  palatal 
  length, 
  46.8 
  ; 
  length 
  of 
  upper 
  molar 
  series, 
  

   29.5 
  ; 
  length 
  of 
  mandible, 
  87; 
  length 
  of 
  lower 
  molar 
  series, 
  37.8; 
  length 
  

   of 
  upper 
  canines, 
  27.5. 
  

  

  Specimens 
  of 
  the 
  true 
  L. 
  albigularis 
  from 
  a 
  number 
  of 
  places 
  

   are 
  in 
  the 
  Collection 
  of 
  the 
  British 
  Museum 
  varying 
  but 
  little 
  from 
  the 
  

   typical 
  style. 
  The 
  type 
  was 
  purchased 
  alive 
  in 
  Bombay, 
  and 
  was 
  said 
  

   to 
  have 
  come 
  from 
  Madagascar, 
  and 
  probably 
  did 
  come 
  from 
  some 
  

   part 
  of 
  East 
  Africa, 
  and 
  if 
  this 
  supposition 
  is 
  correct, 
  the 
  monkeys 
  

   of 
  this 
  species 
  from 
  the 
  East 
  African 
  coast 
  would 
  represent 
  the 
  typical 
  

   style. 
  The 
  species 
  is 
  found 
  across 
  the 
  continent 
  from 
  the 
  east 
  coast 
  

   to 
  the 
  Gold 
  Coast, 
  on 
  the 
  west 
  (Pel) 
  and 
  from 
  Nyassaland 
  to 
  the 
  

   Transvaal. 
  

  

  The 
  type 
  of 
  L. 
  erythrarchus 
  Peters, 
  is 
  in 
  the 
  Berlin 
  Museum. 
  It 
  

   came 
  from 
  Inhambane, 
  south 
  of 
  the 
  Zambesi, 
  and 
  is 
  a 
  young 
  animal 
  

   not 
  separable 
  from 
  L. 
  albigularis. 
  The 
  type 
  of 
  L. 
  monoides 
  I. 
  Geoff., 
  

   is 
  in 
  the 
  Paris 
  Museum 
  and 
  exactly 
  resembles 
  L. 
  albigularis, 
  in 
  fact 
  

   there 
  is 
  no 
  difference 
  whatever 
  in 
  their 
  appearance. 
  Unfortunately 
  

   the 
  skull 
  is 
  in 
  the 
  specimen, 
  so 
  no 
  comparison 
  could 
  be 
  made. 
  

  

  According 
  to 
  Grant, 
  as 
  quoted 
  by 
  Thomas 
  and 
  Schwann 
  (1. 
  c.) 
  

   in 
  the 
  Drakenberg 
  Range, 
  north 
  east 
  Transvaal, 
  this 
  monkey 
  is 
  "com- 
  

   mon, 
  but 
  difficult 
  to 
  obtain 
  on 
  account 
  of 
  its 
  wariness. 
  It 
  inhabits 
  the 
  

   deep 
  kloofs 
  in 
  the 
  depths 
  of 
  the 
  forest, 
  seldom 
  visiting 
  the 
  open 
  parts." 
  

  

  