﻿GDDE 
  : 
  0^ 
  GKNEEA 
  OF 
  ZONITID^. 
  "273 
  

  

  Amphiblema,' 
  U.O-. 
  

  

  Shell 
  trochoid, 
  thin, 
  finely 
  striated, 
  the 
  striae 
  decussated 
  by 
  fine, 
  

   slightly 
  undulating 
  spirals 
  above, 
  base 
  more 
  polished, 
  and 
  spirals 
  

   much 
  finer, 
  umbilicus 
  sub-covered, 
  perforate. 
  

  

  OxyUfi^ 
  Trvon 
  (in 
  part), 
  non 
  Benson. 
  

  

  Type: 
  Helix 
  euchar 
  is, 
  Desh., 
  from 
  Madagascar. 
  

  

  Kalidos,- 
  n.g. 
  

  

  Shell 
  depressed, 
  conoid, 
  finely 
  striated, 
  and 
  decussated 
  by 
  fine 
  or 
  

   coarse 
  spirals, 
  periphery 
  rounded 
  or 
  angular, 
  umbilicus 
  small. 
  

  

  Rhysota, 
  Trvon 
  (in 
  part), 
  non 
  Albers; 
  Xestina, 
  Tryon 
  (in 
  part), 
  non 
  

   Pfeffer. 
  

  

  Type 
  : 
  Helix 
  Kkongoenns, 
  Angas, 
  from 
  Madagascar. 
  

  

  Apparently 
  confined 
  to 
  Madagascar. 
  Helix 
  Cleamesi, 
  Smith, 
  I 
  also 
  

   refer 
  to 
  this 
  genus. 
  

  

  Kalkndyma,^ 
  n.g. 
  

  

  Shell 
  depressed 
  conoiil, 
  rather 
  solid, 
  whorls 
  shouldered 
  above, 
  with 
  

   a 
  shallow 
  groove 
  a 
  little 
  above 
  the 
  periphery, 
  ascending 
  the 
  greater 
  

   part 
  of 
  the 
  spire 
  close 
  to 
  the 
  channelled 
  suture. 
  

  

  Hemiplerta, 
  Tryon, 
  non 
  Albers. 
  

  

  Type 
  : 
  Helix 
  vompluviata 
  , 
  Cox, 
  from 
  the 
  Solomon 
  Islands. 
  

  

  I 
  know 
  no 
  other 
  shell 
  which 
  can 
  be 
  classed 
  with 
  it. 
  The 
  species 
  of 
  

   Taphrospira, 
  Blanford, 
  from 
  India 
  bear 
  some 
  superficial 
  resemblance 
  

   to 
  it. 
  

  

  Elaphrogoncha,* 
  n.g. 
  

  

  Shell 
  depressed, 
  thin, 
  fragile, 
  translucent 
  corneous, 
  amber-coloured, 
  

   dull 
  above, 
  polisned 
  below, 
  finely 
  striated, 
  last 
  whorl 
  dilated 
  towards 
  

   apertui'e, 
  more 
  than 
  twice 
  the 
  size 
  of 
  the 
  penultimate 
  whorl, 
  

   impervious. 
  

  

  Type 
  : 
  Hemipleota 
  internota. 
  Smith, 
  from 
  Lombok 
  Island, 
  Malay 
  

   Archipelago. 
  To 
  this 
  genus 
  I 
  also 
  refer 
  H. 
  rufolineata, 
  Smith, 
  and 
  

   H. 
  Fruhstorferi, 
  Martens, 
  from 
  the 
  same 
  island. 
  

  

  ASPEUITAS,^ 
  n.g. 
  

  

  Shell 
  trochoid, 
  rather 
  solid, 
  opaque, 
  distantly 
  striated, 
  covered 
  with 
  

   incised 
  spirals 
  and 
  obliquely 
  descending 
  rugae. 
  Periphery 
  acutely 
  or 
  

   obtusely 
  keeled, 
  umbilicus 
  sub-covered, 
  perforate. 
  

  

  Xe-ittna 
  and 
  Xesta, 
  auct. 
  (in 
  part). 
  

  

  Type 
  : 
  Xestina 
  rugosissima, 
  Slollendorff, 
  from 
  Roma 
  Island, 
  Malay 
  

   Archipelago. 
  

  

  Helix 
  inquinata, 
  v. 
  d. 
  Busch, 
  and 
  Xesta 
  Dammaensis, 
  Smith, 
  together 
  

   with 
  some 
  other 
  species 
  from 
  these 
  islands, 
  form 
  a 
  fairly 
  homogeneous 
  

   group. 
  

  

  ^ 
  ufKplfiKrjiJLa, 
  a 
  covering. 
  ^ 
  KaAelSos, 
  lovely 
  vision. 
  

  

  ^ 
  Ka\6s, 
  beautiful 
  ; 
  evSv/jLu, 
  ganxient. 
  ■* 
  4\a<pp6s, 
  light 
  ; 
  KSyxri, 
  shell. 
  

  

  ^ 
  Asperitas, 
  roughness. 
  

  

  VOL. 
  IX. 
  — 
  MARCH, 
  1911. 
  19 
  

  

  