﻿144 
  PROCEEDINGS 
  OF 
  THE 
  MALACOLOGICAL 
  SOCIETr. 
  

  

  Opeas 
  burnupi, 
  sp. 
  nov. 
  Fig. 
  3. 
  

  

  Shell 
  very 
  small, 
  narrowly 
  rimate, 
  acuminate-turriform, 
  thin, 
  

   transparent, 
  moderately 
  glossy, 
  pale 
  olivaceous. 
  Spire 
  much 
  pro- 
  

   duced, 
  sides 
  regular, 
  apex 
  rounded. 
  Whorls 
  6i, 
  rather 
  convex, 
  

   gradually 
  and 
  regularly 
  increasing, 
  apical 
  li 
  smooth, 
  remainder 
  

   covered 
  with 
  close, 
  prominent, 
  regular, 
  curved 
  transverse 
  striae. 
  

   Suture 
  moderately 
  impressed. 
  Aperture 
  acuminate-ovate, 
  rounded 
  

   at 
  base, 
  peristome 
  thin, 
  simple, 
  outer 
  lip 
  hardly 
  outcurved, 
  

   moderately 
  arcuate 
  forward; 
  columella 
  nearly 
  straight, 
  margin 
  

   thickly 
  and 
  very 
  narrowly 
  reflexed, 
  forming 
  a 
  minute 
  rima. 
  

  

  Shell, 
  5-4 
  X 
  1-8; 
  apert. 
  I'S 
  X 
  10; 
  last 
  whorl, 
  2-9 
  ram. 
  

  

  Hah. 
  — 
  Cape 
  Province. 
  The 
  Gorge, 
  Somerset 
  East. 
  Natal, 
  

   Karkloof; 
  Nottingham 
  Road 
  ; 
  Bulwer 
  ; 
  Inhluzani 
  ; 
  Fort 
  Nottingham 
  

   (Burnup). 
  

  

  Smaller 
  than 
  either 
  of 
  the 
  foregoing 
  and 
  easily 
  distinguishable 
  

   from 
  most 
  South 
  African 
  members 
  of 
  the 
  genus 
  by 
  its 
  more 
  prominent 
  

   sculpture. 
  

  

  I 
  have 
  much 
  pleasure 
  in 
  dedicating 
  this 
  very 
  distinct 
  species 
  to 
  

   the 
  distinguished 
  conchologist 
  to 
  whose 
  efforts 
  the 
  present 
  paper 
  

   is 
  due. 
  

  

  Opeas 
  annipacis, 
  sp. 
  nov. 
  Fig. 
  4. 
  

  

  Shell 
  small, 
  perforate, 
  elongate-turriform, 
  thin, 
  rather 
  dull, 
  

   transparent, 
  pale 
  olivaceous. 
  Spire 
  much 
  produc'ed, 
  sides 
  evenly 
  

   tapering, 
  apex 
  rounded. 
  Whorls 
  5 
  J, 
  rather 
  flat, 
  regularly 
  increasing, 
  

   the 
  1^- 
  apical 
  smooth, 
  remainder 
  covered 
  with 
  rather 
  prominent, 
  

   close, 
  curved, 
  slightly 
  irregular 
  transverse 
  strise. 
  Suture 
  sub- 
  

   filiform. 
  Apertui'e 
  acuminate-ovate, 
  peristome 
  thin, 
  simple 
  ; 
  outer 
  

   lip 
  curved 
  well 
  forward, 
  and 
  somewhat 
  inward 
  about 
  a 
  third 
  of 
  its 
  

   length 
  below 
  the 
  suture 
  ; 
  base 
  rounded 
  ; 
  columella 
  nearly 
  straight, 
  

   margin 
  moderately 
  reflexed, 
  forming 
  a 
  narrow 
  umbilicus. 
  

  

  Shell 
  5-7 
  X 
  1-8; 
  apert. 
  2-0 
  X 
  0-8; 
  last 
  whorl, 
  3-3 
  mm. 
  

  

  Ilab. 
  — 
  Natal. 
  Verulam 
  (Cawston). 
  

  

  The 
  outer 
  lip 
  is 
  sharply 
  curved 
  forward 
  immediately 
  below 
  the 
  

   suture, 
  almost 
  resembling 
  that 
  of 
  Hypolysia, 
  and 
  distinguishing 
  the 
  

   present 
  species 
  from 
  any 
  other 
  Opeas 
  known 
  to 
  me 
  from 
  South 
  Africa. 
  

  

  