﻿AND 
  OTHER 
  FAMILIES. 
  81 
  

  

  Melania 
  aculeus. 
  Plate 
  XIX. 
  fig. 
  72. 
  

  

  Testa 
  aculo-elevatd, 
  Isevissimd, 
  tenebroso-corned 
  ; 
  apice 
  acutissimo 
  ; 
  anfractibus 
  

   circiter 
  duodecim, 
  subconvexis 
  ; 
  labro 
  expasso. 
  

  

  Shell 
  acutely 
  elevated, 
  very 
  smooth, 
  dark 
  horn 
  colour 
  ; 
  apex 
  very 
  acute 
  ; 
  whorls 
  

   about 
  twelve, 
  somewhat 
  convex 
  ; 
  labrum 
  spread 
  out. 
  

  

  Hab. 
  Java? 
  

  

  My 
  Cabinet. 
  

   Diam 
  *6, 
  Length 
  2 
  inches. 
  

  

  Remarks. 
  — 
  I 
  purchased 
  this, 
  with 
  some 
  other 
  of 
  the 
  shells 
  described 
  

   in 
  this 
  memoir, 
  from 
  the 
  collection 
  brought 
  from 
  Java 
  by 
  Mr 
  Shilla- 
  

   ber. 
  It 
  is 
  remarkable 
  for 
  its 
  attenuated 
  form 
  and 
  tapering 
  spire. 
  It 
  

   is 
  more 
  than 
  usually 
  spread 
  out 
  at 
  the 
  base. 
  The 
  substance 
  of 
  the 
  

   shell 
  is 
  thin 
  and 
  bluish 
  white. 
  The 
  last 
  whorl 
  is 
  much 
  enlarged. 
  

   The 
  aperture 
  occupies 
  about 
  one-third 
  of 
  the 
  length 
  of 
  the 
  shell. 
  

  

  Lymnjea 
  imperialis. 
  Plate 
  XIX. 
  fig. 
  73. 
  

  

  Testa 
  ovato-ventricosd, 
  pellucidd, 
  tenidssimd, 
  albido-corned, 
  subcoronatd 
  ; 
  apice 
  

   obtuso 
  ; 
  anfractibus 
  quaternis, 
  inflatis, 
  ultimo 
  maximo 
  ; 
  aperturd 
  magna, 
  ovatd 
  : 
  

   labro 
  valde 
  extenso. 
  

  

  Shell 
  ovato-ventricose, 
  diaphanous, 
  very 
  thin, 
  light 
  horn 
  colour, 
  subcoronate 
  ; 
  apex 
  

   obtuse 
  ; 
  whorls 
  four, 
  inflated, 
  the 
  last 
  very 
  large 
  ; 
  aperture 
  large, 
  ovate 
  ; 
  outer 
  lip 
  

   much 
  extended. 
  

  

  Hab. 
  South 
  America? 
  

  

  My 
  Cabinet. 
  

   Diam. 
  *9, 
  Length 
  1*4 
  inches. 
  

  

  Remarks. 
  — 
  I 
  accidentally 
  met 
  with 
  this 
  rare 
  and 
  interesting 
  shell 
  

  

  at 
  a 
  dealer's 
  in 
  Paris. 
  I 
  saw 
  no 
  other 
  specimen 
  in 
  any 
  of 
  the 
  great 
  

  

  collections 
  in 
  Europe. 
  The 
  person 
  from 
  whom 
  I 
  obtained 
  it 
  informed 
  

  

  me 
  it 
  came 
  from 
  South 
  America. 
  It 
  is 
  more 
  inflated 
  than 
  any 
  spe- 
  

  

  vol. 
  v. 
  — 
  v 
  

  

  