﻿LASIOPYGA 
  321 
  

  

  of 
  nasals, 
  18.7; 
  width 
  of 
  braincase, 
  58.2; 
  palatal 
  length, 
  37.8; 
  length 
  

   of 
  upper 
  molar 
  series, 
  25.8; 
  length 
  of 
  upper 
  canines, 
  19.2; 
  length 
  of 
  

   mandible, 
  82.3 
  ; 
  length 
  of 
  lower 
  molar 
  series, 
  33.2. 
  

  

  Lasiopyga 
  cephodes 
  (Pocock). 
  

  

  Cercopithecus 
  cephodes 
  Pocock, 
  Proc. 
  Zool. 
  Soc. 
  Lond., 
  1907, 
  p. 
  

   724. 
  

  

  Type 
  locality. 
  Gaboon. 
  Type 
  in 
  British 
  Museum. 
  

  

  Genl. 
  Char. 
  Basal 
  portion 
  of 
  tail 
  above 
  like 
  body, 
  beneath 
  gray- 
  

   ish 
  ; 
  hairs 
  on 
  ears 
  yellowish. 
  

  

  Color. 
  Resembles 
  L. 
  cephus 
  in 
  general 
  style 
  of 
  coloration, 
  but 
  

   differs 
  in 
  having 
  the 
  entire 
  upper 
  part 
  of 
  head 
  black, 
  speckled 
  with 
  

   yellow, 
  and 
  the 
  ears 
  covered 
  heavily 
  with 
  yellowish 
  white 
  hairs; 
  the 
  

   hairs 
  on 
  upper 
  part 
  of 
  cheeks 
  paler, 
  a 
  uniform 
  straw 
  color; 
  the 
  

   speckling 
  on 
  upper 
  parts 
  paler 
  and 
  lighter, 
  more 
  of 
  an 
  orange 
  shade 
  ; 
  

   forearms 
  with 
  but 
  little 
  speckling 
  above, 
  and 
  tail 
  entirely 
  different, 
  

   being 
  like 
  back 
  above 
  at 
  base, 
  and 
  gradually 
  merging 
  into 
  brownish 
  

   black 
  at 
  tip 
  speckled 
  with 
  golden 
  red, 
  beneath 
  gray 
  on 
  basal 
  portion 
  

   merging 
  into 
  a 
  darkish 
  cinnamon 
  ; 
  nose 
  white, 
  the 
  color 
  extending 
  up- 
  

   ward 
  to 
  between 
  the 
  eyes; 
  hands 
  and 
  feet 
  black. 
  Ex 
  type 
  British 
  

   Museum. 
  

  

  Measurements. 
  Total 
  length, 
  1,110; 
  tail, 
  640; 
  foot, 
  120. 
  Skull: 
  

   total 
  length, 
  90.5 
  ; 
  occipito-nasal 
  length, 
  77.5 
  ; 
  intertemporal 
  width, 
  

   40.2; 
  Hensel, 
  56.5; 
  zygomatic 
  width, 
  59.1; 
  width 
  of 
  braincase, 
  52.2; 
  

   median 
  length 
  of 
  nasals, 
  16.1; 
  palatal 
  length, 
  31.6; 
  length 
  of 
  upper 
  

   molar 
  series, 
  23.1; 
  length 
  of 
  upper 
  canines, 
  15.6; 
  length 
  of 
  mandible, 
  

   62.2 
  ; 
  length 
  of 
  lower 
  molar 
  series, 
  29.2. 
  Ex 
  type 
  British 
  Museum. 
  

  

  While 
  resembling 
  L. 
  cephus 
  in 
  the 
  general 
  tone 
  of 
  the 
  upper 
  parts, 
  

   this 
  style 
  can 
  be 
  readily 
  distinguished 
  by 
  its 
  black 
  head 
  and 
  totally 
  

   differently 
  colored 
  tail. 
  The 
  upper 
  parts 
  are 
  brighter, 
  more 
  orange 
  

   hued, 
  and 
  the 
  yellowish 
  white 
  hair 
  on 
  the 
  ears 
  is 
  very 
  conspicuous, 
  as 
  

   is 
  also 
  the 
  yellow 
  hair 
  on 
  the 
  cheeks. 
  The 
  status 
  of 
  this 
  Monkey, 
  

   however, 
  as 
  a 
  form 
  distinct 
  from 
  L. 
  cephus 
  cannot 
  as 
  yet 
  be 
  regarded 
  

   as 
  satisfactorily 
  established. 
  The 
  majority 
  of 
  specimens 
  with 
  tails 
  

   colored 
  like 
  the 
  type 
  are 
  thus 
  far 
  females, 
  and 
  cephus 
  may 
  be 
  as 
  

   regards 
  this 
  member, 
  dimorphic, 
  at 
  least 
  in 
  a 
  restricted 
  form, 
  for 
  

   while 
  females 
  mostly 
  possess 
  such 
  tails, 
  some 
  adult 
  males 
  also 
  have 
  

   them. 
  More 
  specimens 
  are 
  required 
  to 
  show 
  whether 
  this 
  peculiar 
  

   coloration 
  is 
  restricted 
  to 
  a 
  certain 
  locality, 
  or 
  obtained 
  generally 
  

   wherever 
  cephus 
  is 
  found, 
  in 
  which 
  case 
  it 
  would 
  simply 
  be 
  dimorphic. 
  

  

  