﻿Baces 
  of 
  African 
  Ungulates. 
  39 
  

  

  A 
  form 
  of 
  the 
  western 
  sliort-horued 
  unctuosus 
  -section 
  of 
  

   Kubus 
  defassa 
  with 
  a 
  massive 
  skull 
  and 
  strongly 
  curved 
  

   horns. 
  

  

  Skull. 
  Very 
  heavy, 
  slightly 
  larger 
  than 
  in 
  K. 
  d. 
  unctuosus 
  ; 
  

   facial 
  portion 
  rather 
  short 
  and 
  narrow, 
  premaxillaries 
  not 
  

   widened 
  at 
  all 
  and 
  square 
  in 
  front. 
  Upper 
  orbital 
  margin 
  

   not 
  projecting 
  at 
  all, 
  lower 
  rather 
  conspicuously. 
  

  

  Horns 
  short, 
  as 
  in 
  K. 
  d. 
  unctuosus, 
  with 
  short 
  tips, 
  which 
  

   ar(i 
  strongly 
  bent 
  upvvards 
  or 
  inwards. 
  

  

  Dimensions 
  of 
  type 
  skull. 
  Basal 
  length 
  362 
  mm. 
  ; 
  upper 
  

   length 
  393 
  ; 
  palatal 
  length 
  209 
  ; 
  palatal 
  width 
  inside 
  7«2 
  55-5 
  ; 
  

   postorbital 
  width 
  157 
  ; 
  zygomatic 
  width 
  147 
  ; 
  breadth 
  of 
  

   rostrum 
  across 
  premaxillse 
  56*5 
  ; 
  length 
  of 
  upper 
  tooth-row 
  

   (alv.) 
  98"9 
  ; 
  horns, 
  length 
  along 
  curve 
  610, 
  greatest 
  dia- 
  

   meter 
  at 
  base 
  71 
  0. 
  

  

  Adenota 
  kob 
  riparia, 
  subsp. 
  n. 
  

  

  Type 
  locality. 
  District 
  of 
  Kpandu, 
  W. 
  Togo. 
  

  

  Type. 
  cJ 
  adult. 
  Senckenberg 
  Museum. 
  Journal 
  no. 
  402 
  

   (skull). 
  

  

  A 
  member 
  of 
  the 
  western 
  group 
  of 
  small 
  '^kobs/' 
  still 
  

   smaller 
  than 
  A. 
  kob 
  kob 
  from 
  Senegambia. 
  

  

  Skull. 
  Smallest 
  of 
  any 
  described 
  race, 
  but 
  very 
  broad. 
  

   Orbit 
  strongly 
  projecting, 
  even 
  more 
  so 
  than 
  in 
  A. 
  k. 
  nigri- 
  

   cans, 
  in 
  which 
  the 
  postorbital 
  breadth 
  is 
  slightly 
  greater, 
  but 
  

   the 
  lower 
  margin 
  of 
  the 
  orbit 
  less 
  projecting. 
  Facial 
  portion 
  

   of 
  skull 
  short 
  and 
  broad 
  ; 
  rostrum 
  very 
  short; 
  nasals 
  

   narrow. 
  

  

  Horns 
  much 
  as 
  in 
  A. 
  k. 
  kob, 
  but 
  shorter 
  and 
  rather 
  more 
  

   curved 
  in 
  their 
  basal 
  and 
  middle 
  portion 
  ; 
  distinctly 
  thicker, 
  

   with 
  shorter 
  tips, 
  which 
  are 
  much 
  more 
  curved 
  forwards. 
  

  

  Dimensions 
  of 
  type. 
  Upper 
  length 
  253 
  mm. 
  ; 
  palatal 
  length 
  

   134 
  ; 
  palatal 
  width 
  inside 
  m^ 
  33*5 
  ; 
  postorbital 
  width 
  107 
  ; 
  

   zygomatic 
  width 
  99 
  ; 
  occipital 
  width 
  83 
  ; 
  nasals, 
  length 
  96*8, 
  

   greatest 
  breadth 
  19"3 
  ; 
  breadth 
  of 
  rostrum 
  across 
  pre- 
  

   maxillse 
  329; 
  length 
  of 
  rostrum 
  (gnathion 
  to 
  p^) 
  78-9 
  ; 
  

   length 
  of 
  upper 
  tooth-row 
  (alv.) 
  65*5 
  ; 
  horns, 
  length 
  along 
  

   curve 
  345, 
  greatest 
  diameter 
  at 
  base 
  47"6. 
  

  

  The 
  Togo 
  " 
  kob 
  " 
  is 
  the 
  smallest 
  race 
  of 
  this 
  group 
  known 
  

   to 
  me. 
  It 
  is 
  at 
  once 
  known 
  by 
  its 
  short 
  broad 
  skull, 
  short 
  

   rostrum, 
  and 
  strongly 
  projecting 
  orbits. 
  

  

  A. 
  k. 
  nigricans, 
  Lydekker, 
  from 
  Sierra 
  Leone, 
  has 
  a 
  much 
  

   longer 
  rostrum 
  ; 
  it 
  was 
  originally 
  described 
  on 
  account 
  of 
  

   the 
  dark 
  colour 
  of 
  a 
  female 
  in 
  the 
  British 
  Museum, 
  a 
  

   cliaracter 
  which 
  is 
  not 
  at 
  all 
  constant 
  in 
  that 
  race, 
  but 
  seems 
  

  

  