﻿LASIOPYGA 
  311 
  

  

  Genl. 
  Char. 
  Similar 
  to 
  L. 
  albigularis 
  but 
  nose 
  and 
  upper 
  lips 
  

   white; 
  under 
  surface 
  and 
  limbs 
  black. 
  

  

  Color. 
  Fore 
  part 
  and 
  sides 
  of 
  head 
  from 
  beneath 
  eyes, 
  and 
  sides 
  

   of 
  neck 
  thickly 
  speckled 
  with 
  black 
  and 
  white; 
  no 
  defined 
  band 
  on 
  

   forehead; 
  top 
  of 
  head 
  and 
  nape 
  black 
  sparsely 
  speckled 
  with 
  white; 
  

   hind 
  neck, 
  band 
  across 
  back 
  at 
  base 
  of 
  neck, 
  shoulders, 
  outer 
  and 
  inner 
  

   sides 
  of 
  arms 
  and 
  legs, 
  hands 
  and 
  feet 
  jet 
  black; 
  upper 
  parts 
  and 
  

   sides 
  of 
  body 
  speckled 
  black 
  and 
  white, 
  the 
  blue 
  gray 
  basal 
  portion 
  of 
  

   the 
  hairs 
  imparting 
  a 
  gray 
  tinge 
  over 
  all 
  ; 
  upper 
  lip 
  covered 
  with 
  short 
  

   white 
  hairs; 
  chin 
  grayish 
  white; 
  throat 
  yellowish 
  white; 
  entire 
  under 
  

   parts 
  jet 
  black; 
  tail 
  at 
  base 
  black 
  speckled 
  with 
  white, 
  remainder 
  jet 
  

   black. 
  

  

  Measurements. 
  Total 
  length, 
  1,300; 
  tail, 
  700; 
  foot, 
  145; 
  ear, 
  30. 
  

   Skull: 
  total 
  length, 
  116.4; 
  occipito-nasal 
  length, 
  95.6; 
  Hensel, 
  81.3; 
  

   intertemporal 
  length, 
  41.4; 
  zygomatic 
  width, 
  75.6; 
  palatal 
  length, 
  81.9; 
  

   median 
  length 
  of 
  nasals, 
  23.9 
  ; 
  width 
  of 
  braincase, 
  58.3 
  ; 
  length 
  of 
  upper 
  

   molar 
  series, 
  46.4; 
  length 
  of 
  mandible, 
  78.2; 
  length 
  of 
  lower 
  molar 
  

   series, 
  32.9; 
  length 
  of 
  upper 
  canines, 
  21.2. 
  Ex 
  specimen 
  in 
  British 
  

   Museum 
  from 
  Kaffa, 
  6. 
  11. 
  1. 
  1. 
  

  

  Unfortunately 
  during 
  my 
  visit 
  to 
  the 
  Florence 
  Museum, 
  the 
  Di- 
  

   rector, 
  Signor 
  Giglioli, 
  was 
  absent 
  from 
  the 
  city 
  and 
  I 
  was 
  not 
  able 
  to 
  

   find 
  the 
  type 
  of 
  this 
  species, 
  but 
  the 
  specimen 
  above 
  described, 
  obtained 
  

   at 
  the 
  same 
  place 
  as 
  the 
  type, 
  is 
  a 
  co-type, 
  and 
  therefore 
  is 
  an 
  accept- 
  

   able 
  representative 
  of 
  the 
  species. 
  

  

  Lasiopyga 
  opisthosticta 
  (Sclater). 
  

  

  Cercopithecus 
  opisthostictus 
  Sclat., 
  Proc. 
  Zool. 
  Soc. 
  Lond., 
  1893, 
  

   p. 
  725; 
  Forbes, 
  Handb. 
  Primates, 
  II, 
  1894, 
  p. 
  72; 
  Pocock, 
  

   Proc. 
  Zool. 
  Soc. 
  Lond., 
  II, 
  1907, 
  p. 
  694. 
  

  

  RUMP-SPOTTED 
  GUENON. 
  

  

  Type 
  locality. 
  Lake 
  Mweru, 
  British 
  Central 
  Africa. 
  Type 
  in 
  

   British 
  Museum. 
  

  

  Color. 
  Face 
  dark 
  brown; 
  upper 
  lip 
  covered 
  with 
  short 
  white 
  

   hairs; 
  forehead, 
  and 
  sides 
  of 
  face 
  and 
  neck 
  thickly 
  speckled 
  with 
  

   white 
  and 
  black; 
  a 
  bar 
  across 
  the 
  forehead 
  being 
  nearly 
  all 
  white; 
  

   top, 
  and 
  back 
  of 
  head, 
  nape, 
  and 
  back 
  of 
  neck 
  black 
  speckled 
  with 
  

   white, 
  but 
  less 
  profusely 
  ; 
  band 
  across 
  upper 
  back 
  at 
  base 
  of 
  neck 
  jet 
  

   black, 
  sparsely 
  speckled 
  with 
  white 
  on 
  middle 
  of 
  back 
  ; 
  outer 
  and 
  inner 
  

   sides 
  of 
  arms, 
  and 
  hands 
  jet 
  black 
  ; 
  upper 
  part 
  and 
  sides 
  of 
  body 
  gray 
  

   speckled 
  with 
  black 
  and 
  buff; 
  upper 
  edge 
  of 
  thighs, 
  legs 
  and 
  feet 
  jet 
  

   black 
  ; 
  rest 
  of 
  thighs 
  and 
  legs 
  iron 
  gray, 
  grizzled, 
  similar 
  to 
  the 
  upper 
  

  

  