﻿348 
  LASIOPYGA 
  

  

  black 
  ; 
  beneath 
  with 
  a 
  rufous 
  patch 
  at 
  root, 
  rest 
  whitish 
  gray, 
  becoming 
  

   buff 
  on 
  apical 
  part, 
  the 
  extreme 
  tip 
  only 
  being 
  black. 
  Ex 
  type 
  British 
  

   Museum. 
  

  

  Measurements. 
  Total 
  length, 
  1,190; 
  tail, 
  730; 
  foot, 
  125. 
  Skull: 
  

   total 
  length, 
  103.2 
  ; 
  occipito-nasal 
  length, 
  87 
  ; 
  intertemporal 
  width, 
  42.9 
  ; 
  

   Hensel, 
  72 
  ; 
  zygomatic 
  width, 
  72.9 
  ; 
  width 
  of 
  braincase, 
  57.5 
  ; 
  median 
  

   length 
  of 
  nasals, 
  16.1; 
  palatal 
  length, 
  38.3; 
  length 
  of 
  upper 
  molar 
  

   series, 
  25; 
  length 
  of 
  upper 
  canines, 
  15.5; 
  length 
  of 
  mandible, 
  74.7; 
  

   length 
  of 
  lower 
  molar 
  series, 
  30.8. 
  Ex 
  type 
  British 
  Museum. 
  

  

  There 
  are 
  three 
  specimens 
  of 
  this 
  species 
  in 
  the 
  British 
  Museum 
  

   from 
  the 
  east 
  bank 
  of 
  the 
  Loangwa 
  River, 
  collected 
  by 
  S. 
  A. 
  Neave 
  at 
  

   an 
  altitude 
  of 
  2,200 
  feet, 
  one 
  from 
  Limondi 
  on 
  the 
  boundary 
  between 
  

   the 
  English 
  and 
  Portuguese 
  territories, 
  and 
  one 
  from 
  North 
  Basi- 
  

   hindo, 
  Chiyaka 
  District, 
  Angola, 
  West 
  Africa, 
  collected 
  by 
  Dr. 
  F. 
  C. 
  

   Wellman. 
  They 
  closely 
  resemble 
  each 
  other, 
  giving 
  the 
  impression 
  

   of 
  a 
  yellow 
  monkey 
  speckled 
  on 
  head, 
  middle 
  of 
  back 
  and 
  rump 
  with 
  

   black, 
  but 
  the 
  rings 
  rather 
  indistinct 
  on 
  flanks. 
  By 
  having 
  the 
  red 
  

   patch 
  beneath 
  the 
  tail 
  at 
  the 
  root, 
  the 
  species 
  shows 
  its 
  relationship 
  to 
  

   L. 
  pygerythra, 
  but 
  it 
  bears 
  no 
  resemblance 
  whatever 
  to 
  that 
  animal 
  

   in 
  its 
  general 
  coloration, 
  and 
  in 
  fact 
  is 
  far 
  too 
  much 
  of 
  a 
  yellowish 
  

   hue 
  to 
  be 
  compared 
  with 
  any 
  other 
  species 
  of 
  the 
  genus. 
  It 
  doubtless 
  

   is 
  a 
  dweller 
  of 
  the 
  forests 
  on 
  the 
  watershed 
  from 
  the 
  Loangwa 
  River 
  

   westward 
  to 
  Angola. 
  It 
  is 
  a 
  large 
  thick-set 
  animal 
  with 
  rather 
  short 
  

   limbs 
  and 
  long 
  tail. 
  

  

  Lasiopyga 
  nigriyiridis 
  (Pocock). 
  

  

  Cercopithecus 
  nigroviridis 
  Pocock, 
  Proc. 
  Zool. 
  Soc. 
  Lond., 
  1907, 
  

   p. 
  739, 
  pi. 
  XLII, 
  fig. 
  5 
  ; 
  1908, 
  p. 
  160, 
  pi. 
  X, 
  fig. 
  1. 
  

  

  Type 
  locality. 
  Upper 
  Congo 
  ? 
  Type 
  in 
  British 
  Museum. 
  

  

  Genl. 
  Char. 
  Type 
  immature; 
  upper 
  parts 
  dark, 
  under 
  parts 
  pale, 
  

   uniform. 
  

  

  Color. 
  Face 
  brownish, 
  eyelids 
  flesh 
  color; 
  hairs 
  on 
  cheeks 
  and 
  

   upper 
  lip 
  black; 
  superciliary 
  line 
  black, 
  extending 
  from 
  corners 
  of 
  the 
  

   eyes 
  across 
  temples 
  to 
  ears; 
  black 
  hairs 
  of 
  cheeks 
  with 
  subterminal 
  

   yellow 
  bands 
  ; 
  head, 
  neck, 
  shoulders 
  and 
  upper 
  parts 
  of 
  body 
  and 
  flanks 
  

   speckled 
  with 
  black 
  and 
  golden 
  yellow, 
  there 
  being 
  two 
  bands 
  of 
  the 
  

   latter 
  on 
  each 
  hair, 
  base 
  of 
  hairs 
  gray; 
  outer 
  side 
  of 
  arms 
  grayish 
  

   speckled 
  with 
  yellow; 
  hands 
  black; 
  legs 
  to 
  ankles 
  mostly 
  yellow 
  on 
  

   outer 
  side; 
  feet 
  black, 
  hairs 
  with 
  yellow 
  tips; 
  chin, 
  throat, 
  sides 
  of 
  

   neck, 
  inner 
  side 
  of 
  limbs 
  and 
  under 
  parts 
  of 
  body 
  yellowish 
  white; 
  

  

  