﻿Mr. 
  E. 
  Scliwarz 
  on 
  African 
  Ungulates. 
  491 
  

  

  LVII. 
  — 
  Notes 
  on 
  African 
  Ungulates. 
  

   By 
  Ernst 
  Schwarz. 
  

  

  I. 
  — 
  The 
  Classification 
  of 
  the 
  Duikers. 
  

  

  In 
  tlie 
  'Book 
  of 
  Antelopes' 
  all 
  the 
  Duikers 
  were 
  included 
  

   ia 
  one 
  genus, 
  Cephalophus. 
  Since 
  then, 
  however, 
  the 
  number 
  

   of 
  " 
  species 
  '' 
  has 
  been 
  enormously 
  increased, 
  and 
  several 
  

   subdivisions 
  have 
  been 
  proposed. 
  In 
  1899 
  O. 
  Neumann* 
  

   pointed 
  out 
  that 
  the 
  steppe 
  forms 
  should 
  be 
  placed 
  in 
  a 
  

   separate 
  genus, 
  Sylvicapra, 
  Ogilby, 
  their 
  horns 
  being 
  more 
  

   erect 
  than 
  in 
  the 
  other 
  species, 
  and 
  the 
  females 
  usually 
  

   lacking 
  them. 
  Pocock 
  f 
  has 
  revived 
  Gray's 
  genus 
  Guevei 
  

   for 
  the 
  small 
  species 
  maxwelli 
  and 
  melanorrhcus, 
  which 
  have 
  

   no 
  inguinal 
  glands. 
  Finally, 
  in 
  1907, 
  Dr. 
  Kuottnerus- 
  

   Meyer 
  J 
  has 
  divided 
  the 
  genus, 
  which 
  he 
  gives 
  family 
  rank, 
  

   into 
  two 
  subfamilies 
  with 
  ten 
  genera, 
  most 
  of 
  which 
  are 
  

   very 
  heterogeneous. 
  A 
  recent 
  revision 
  of 
  the 
  genus 
  shows 
  

   that 
  four 
  genera 
  [Sylvicapra, 
  Cephalophus, 
  Guevei, 
  and 
  

   Cephalophula) 
  should 
  be 
  recognized. 
  Of 
  these, 
  Sylvicapra 
  

   appears 
  to 
  be 
  most 
  closely 
  allied 
  to 
  the 
  Cephalophus 
  natalensis 
  

   group, 
  and 
  Cephulopjhula 
  is 
  certainly 
  nearly 
  related 
  to 
  

   Cephalophus 
  dorsalis, 
  as 
  Thomas 
  § 
  has 
  shown 
  ; 
  the 
  presence 
  

   of 
  heel-tufts, 
  the 
  Oroad 
  nasal 
  chamber, 
  the 
  sagittal 
  ridge, 
  

   small 
  preorbital 
  fossae 
  in 
  the 
  skull, 
  and 
  the 
  transverse 
  body- 
  

   stripes 
  would, 
  however, 
  indicate 
  that 
  the 
  separation 
  of 
  this 
  

   form 
  is 
  justified. 
  The 
  remaining 
  forms 
  can 
  be 
  arranged 
  in 
  

   ten 
  species, 
  of 
  which 
  ogilbyi 
  is 
  the 
  western 
  representative 
  of 
  

   callipygus 
  and 
  niger 
  ot 
  spudix. 
  The 
  relations 
  of 
  the 
  other 
  

   species 
  amongst 
  each 
  other 
  are 
  not 
  quite 
  clear 
  at 
  present, 
  

   but 
  it 
  has 
  been 
  thought 
  advisable 
  to 
  publish 
  the 
  following 
  

   list 
  for 
  the 
  time 
  being. 
  A 
  general 
  revision 
  of 
  the 
  local 
  

   forms 
  of 
  most 
  of 
  the 
  species 
  pending, 
  I 
  have 
  placed 
  in 
  each 
  

   group 
  all 
  the 
  names 
  referable 
  to 
  it, 
  which 
  should 
  be 
  regarded 
  

   as 
  subspecies 
  or 
  synonyms 
  of 
  the 
  species 
  in 
  question. 
  

  

  I. 
  Sylvicapra, 
  Ogilby. 
  r^, 
  

  

  Sylvicapra, 
  Ogilby, 
  P. 
  Z. 
  S. 
  1836, 
  p. 
  138 
  S. 
  gnrnmia. 
  

  

  L'ephalophorus, 
  Gray, 
  List 
  Mamm. 
  B. 
  M. 
  p. 
  162 
  (1843j. 
  . 
  6'. 
  yrimmia. 
  

  

  One 
  species. 
  

  

  * 
  Sb. 
  nat. 
  Fr. 
  p. 
  19 
  (1899). 
  

  

  t 
  P. 
  Z. 
  S. 
  191U, 
  ii. 
  pp. 
  867-876. 
  

  

  i 
  Arch. 
  f. 
  Naturg. 
  Ixxiii. 
  vol. 
  i. 
  pp. 
  42-4S 
  (1907). 
  

  

  § 
  P. 
  Z. 
  S. 
  1892, 
  p. 
  42.5. 
  

  

  