﻿LASIOPYGA 
  319 
  

  

  Cercopithecus 
  stampHii 
  Jent., 
  Notes 
  Leyden 
  Mus., 
  X, 
  1888, 
  p. 
  10 
  ; 
  

   Sclat., 
  Proc. 
  Zool. 
  Soc. 
  Lond., 
  1893, 
  p. 
  257; 
  Matschie, 
  

   Sitzungsb. 
  Gesell. 
  Naturf. 
  Freunde, 
  Berlin, 
  1893, 
  pp. 
  101, 
  

   215; 
  Forbes, 
  Handb. 
  Primates, 
  II, 
  1894, 
  p. 
  50. 
  

  

  MARTIN'S 
  GUENON. 
  

  

  Type 
  locality. 
  "Fernando 
  Po." 
  

  

  Geogr. 
  Distr. 
  Guinea 
  from 
  the 
  delta 
  of 
  the 
  Niger, 
  Asabe, 
  River 
  

   Niger, 
  (Rudkin) 
  ; 
  Liberia 
  to 
  Cameroon 
  and 
  Sette 
  Cama, 
  West 
  Africa. 
  

  

  Genl. 
  Char. 
  Distinguished 
  from 
  L. 
  nictitans 
  by 
  a 
  whitish 
  breast 
  

   and 
  inner 
  side 
  of 
  arms. 
  

  

  Color. 
  Hairs 
  on 
  forehead 
  speckled 
  black 
  and 
  yellow; 
  crown 
  of 
  

   head 
  speckled 
  buff 
  and 
  black; 
  nape 
  and 
  hind 
  neck 
  covered 
  with 
  jet 
  

   black 
  hairs, 
  beneath 
  which 
  the 
  hairs 
  are 
  speckled 
  white 
  and 
  black, 
  and 
  

   this 
  speckling 
  continues 
  to 
  below 
  shoulders; 
  lower 
  back 
  and 
  rump 
  

   speckled 
  buff 
  and 
  black 
  ; 
  flanks 
  grayer, 
  hairs 
  speckled 
  white 
  and 
  black 
  

   on 
  apical 
  half; 
  outer 
  side 
  of 
  arms 
  to 
  elbows, 
  and 
  whole 
  of 
  forearms, 
  

   hands 
  and 
  feet, 
  jet 
  black; 
  outer 
  side 
  of 
  legs 
  black 
  speckled 
  with 
  white, 
  

   the 
  speckling 
  growing 
  less 
  below 
  the 
  knee 
  ; 
  chin, 
  throat, 
  upper 
  part 
  of 
  

   chest 
  and 
  inner 
  side 
  of 
  arms 
  to 
  elbows, 
  and 
  legs 
  to 
  knees 
  white 
  ; 
  rest 
  of 
  

   under 
  parts 
  pale 
  gray; 
  tail 
  black 
  speckled 
  with 
  white 
  for 
  four 
  fifths 
  

   its 
  length, 
  remainder 
  jet 
  black; 
  large 
  white 
  spot 
  on 
  nose. 
  Ex 
  type 
  

   British 
  Museum. 
  

  

  Measurements. 
  Total 
  length, 
  1,080; 
  tail, 
  420; 
  foot, 
  115. 
  No 
  

   skull. 
  Ex 
  type 
  British 
  Museum. 
  

  

  Subgenus 
  4. 
  Neocebus. 
  

   Tail 
  red 
  or 
  mostly 
  red 
  ; 
  nose 
  spot 
  usually 
  present. 
  

  

  A. 
  Pale 
  blue 
  transverse 
  stripe 
  on 
  upper 
  lip. 
  

  

  a. 
  Without 
  rufous 
  brow 
  band. 
  

  

  a.' 
  Tail 
  coppery 
  red, 
  hairs 
  on 
  ears 
  white 
  L. 
  cephus. 
  

  

  b! 
  Tail 
  above 
  like 
  back, 
  not 
  red, 
  hairs 
  on 
  

  

  ears 
  yellowish 
  L. 
  cephodes. 
  

  

  b. 
  With 
  rufous 
  brow 
  band 
  L. 
  inobservata. 
  

  

  B. 
  No 
  blue 
  stripe 
  on 
  upper 
  lip. 
  

  

  a. 
  Nose 
  patch 
  white 
  L. 
  sclateri. 
  

  

  b. 
  Nose 
  patch 
  red 
  L. 
  erythrotis. 
  

  

  Lasiopyga 
  cephus 
  (Linnaeus). 
  

  

  Simia 
  cephus 
  Linn., 
  Syst. 
  Nat., 
  I, 
  1758, 
  p. 
  27 
  ; 
  I, 
  1766, 
  p. 
  39 
  ; 
  Bodd., 
  

   Elench. 
  Anim., 
  1784, 
  p. 
  159. 
  

  

  