﻿460 
  Lt.. 
  Colonel 
  H. 
  H. 
  Grodwin- 
  Austen 
  on 
  

  

  Kerkophorus 
  bicolor, 
  sp. 
  n. 
  (Part 
  I., 
  pi. 
  i. 
  figs. 
  1, 
  1 
  a, 
  lb 
  ; 
  

   PL 
  XlX. 
  figs. 
  1-1 
  c.) 
  

  

  Locality. 
  Town 
  Bush, 
  Maritzburg 
  ; 
  only 
  one 
  specimen 
  

   received. 
  

  

  Shell 
  globosely 
  conoid, 
  imperforate, 
  shiny; 
  sculpture 
  very 
  

   nearly 
  smooth, 
  just 
  an 
  indication 
  of 
  irregular 
  longitudinal 
  

   striation 
  ; 
  colour 
  very 
  ruddy 
  brown 
  as 
  far 
  as 
  a 
  fine 
  brown 
  

   band 
  just 
  above 
  the 
  periphery, 
  pale 
  and 
  olivaceous 
  below 
  

   this 
  band 
  (the 
  difference 
  is 
  striking) 
  ; 
  spire 
  depresse;lly 
  

   C(moid, 
  apex 
  rounded 
  ; 
  suture 
  modei'ately 
  impressed 
  ; 
  

   whorls 
  4, 
  the 
  last 
  expanded, 
  rounded 
  on 
  the 
  periphery 
  ; 
  

   aperture 
  ovate, 
  about 
  as 
  broad 
  as 
  high 
  ; 
  peristome 
  thin 
  ; 
  

   columellar 
  margin 
  not 
  thickened, 
  slightly 
  curved. 
  

  

  Size: 
  major 
  diam. 
  13'0, 
  minor 
  11'20 
  ; 
  alt. 
  axis 
  6*5 
  mm. 
  

  

  Animal 
  (Part 
  I., 
  pi. 
  i. 
  figs. 
  1, 
  1 
  a). 
  — 
  In 
  excellent 
  preserva- 
  

   tion. 
  The 
  lobe 
  over 
  mucous 
  gland 
  large 
  and 
  standing 
  up. 
  The 
  

   right 
  shell-lobe 
  is 
  long, 
  wide 
  at 
  base, 
  tapering 
  gradually 
  to 
  

   a 
  point 
  ; 
  the 
  left 
  (fig. 
  1 
  b, 
  Isl) 
  is 
  given 
  off 
  from 
  a 
  narrow 
  

   band, 
  which 
  overlaps 
  the 
  peristome 
  and 
  is 
  broad 
  at 
  base 
  and 
  

   elongately 
  triangular 
  in 
  shape. 
  The 
  left 
  dorsal 
  lobe 
  is 
  in 
  

   two 
  distinct 
  parts, 
  the 
  anterior 
  the 
  longest 
  and 
  narrow. 
  

   The 
  wall 
  of 
  the 
  branchial 
  sac 
  (pi. 
  i. 
  {br) 
  fig. 
  1 
  b) 
  is 
  pale 
  

   vinous, 
  with 
  a 
  few 
  black 
  specks. 
  The 
  kidney 
  is 
  bordered 
  by 
  

   black 
  bands 
  ; 
  jiosteriorhj 
  the 
  visceral 
  sac 
  is 
  black 
  ; 
  the 
  liver- 
  

   whorls 
  to 
  apex 
  dark 
  broivn, 
  with 
  a 
  few 
  distant 
  minute 
  white 
  

   sjjots. 
  

  

  In 
  the 
  generative 
  organs 
  (PI. 
  XIX. 
  fig. 
  1) 
  the 
  penis-sheath 
  

   is 
  large 
  and 
  bulbous 
  near 
  the 
  aperture, 
  the 
  retractor 
  muscle 
  is 
  

   short 
  and 
  thick 
  ; 
  the 
  flagellum 
  short, 
  there 
  is 
  an 
  accessory 
  

   organ 
  globose 
  at 
  end 
  of 
  a 
  short 
  duct. 
  The 
  spermatheca 
  

   large, 
  oval, 
  on 
  a 
  strong 
  large 
  duct. 
  The 
  free 
  oviduct 
  is 
  very 
  

   black, 
  as 
  in 
  inunctus 
  and 
  ph(Rdimus. 
  The 
  spermatophore 
  

   (PI. 
  XIX. 
  fig. 
  1 
  b) 
  has 
  a 
  short 
  rather 
  thickened 
  flume 
  closely 
  

   set 
  with 
  bifid 
  spines, 
  fourteen 
  anterior 
  and 
  about 
  seventeen 
  

   posterior. 
  There 
  are 
  thirty-two 
  in 
  a 
  second 
  example, 
  and 
  

   the 
  first 
  four 
  or 
  five 
  are 
  on 
  both 
  sides 
  of 
  the 
  flume 
  next 
  the 
  

   capsule, 
  most 
  of 
  which 
  were 
  broken 
  off 
  unfortunately, 
  so 
  

   that 
  their 
  form 
  could 
  only 
  be 
  taken 
  from 
  five 
  or 
  six 
  that 
  

   were 
  perfect 
  ; 
  these 
  were 
  bifid 
  close 
  to 
  base 
  and 
  bifid 
  at 
  the 
  

   points, 
  thus 
  similar 
  in 
  this 
  respect 
  to 
  No. 
  12 
  from 
  Equeefa 
  

   (pi. 
  iv. 
  fig. 
  2 
  a). 
  The 
  long 
  whip-like 
  portion 
  was 
  given 
  off 
  

   near 
  the 
  posterior 
  termination 
  of 
  the 
  flume. 
  

  

  The 
  radula 
  (PI. 
  XIX. 
  fig. 
  1 
  c) 
  of 
  this 
  species 
  differs 
  from 
  

   all 
  I 
  have 
  as 
  yet 
  dissected, 
  but 
  approaches 
  K. 
  immctas. 
  

   Centre 
  and 
  adniedians 
  as 
  usual 
  ; 
  the 
  laterals 
  are 
  long 
  and 
  

  

  