﻿AND 
  OTHER 
  FAMILIES. 
  43 
  

  

  Hab. 
  China. 
  W. 
  W. 
  Wood. 
  

  

  My 
  Cabinet. 
  

   Cabinet 
  of 
  the 
  Academy 
  of 
  Natural 
  Sciences 
  of 
  Philadelphia. 
  

   Diam. 
  1-5, 
  Length 
  2-2, 
  Breadth 
  3*5 
  inches. 
  

  

  Shell 
  subpentagonal, 
  angular 
  behind, 
  transverse, 
  inequilateral, 
  irre- 
  

   gularly 
  swollen 
  over 
  the 
  umbones, 
  slightly 
  compressed 
  somewhat 
  be- 
  

   fore 
  and 
  below 
  the 
  umbones, 
  posterior 
  slope 
  carinate 
  ; 
  substance 
  of 
  the 
  

   shell 
  thin 
  ; 
  epidermis 
  wrinkled, 
  dark 
  brown 
  with 
  obsolete 
  rays 
  ; 
  liga- 
  

   ment 
  long 
  and 
  somewhat 
  thick 
  ; 
  beaks 
  slightly 
  inflated 
  and 
  undulated 
  ; 
  

   cicatrices 
  scarcely 
  perceptible 
  posteriorly, 
  more 
  deeply 
  impressed 
  ante- 
  

   riorly 
  ; 
  cavity 
  of 
  the 
  beaks 
  shallow 
  ; 
  cavity 
  of 
  the 
  disk 
  impressed 
  im- 
  

   mediately 
  under 
  the 
  umbo 
  ; 
  nacre 
  pearly 
  white 
  and 
  iridescent. 
  

  

  Remarks. 
  — 
  This 
  species 
  was 
  first, 
  I 
  believe, 
  brought 
  to 
  this 
  city 
  from 
  

   Canton 
  by 
  Mr 
  Wood* 
  about 
  five 
  years 
  since. 
  To 
  him 
  I 
  owe 
  the 
  first 
  

   specimen 
  I 
  have 
  seen. 
  A 
  younger 
  and 
  fine 
  specimen 
  I 
  owe 
  to 
  the 
  

   kindness 
  of 
  an 
  estimable 
  friend 
  and 
  accomplished 
  conchologist, 
  Mrs 
  

   Corrie, 
  who 
  sent 
  it 
  to 
  me 
  from 
  England 
  about 
  two 
  years 
  since, 
  with 
  a 
  

   label 
  " 
  From 
  China." 
  It 
  closely 
  resembles 
  the 
  preceding 
  species 
  in 
  

   many 
  characters. 
  All 
  the 
  specimens, 
  however, 
  which 
  I 
  have 
  seen, 
  

   perhaps 
  half 
  a 
  dozen, 
  retain 
  the 
  distinctive 
  characteristics 
  — 
  the 
  greater 
  

   trans 
  versen 
  ess 
  — 
  the 
  subpentagonal 
  form 
  — 
  the 
  slight 
  compression 
  ante- 
  

   rior 
  to 
  the 
  umbones 
  — 
  the 
  dark 
  epidermis 
  — 
  the 
  absence 
  almost 
  entirely 
  

   of 
  rays 
  and 
  its 
  want 
  of 
  a 
  rich 
  nacre 
  — 
  in 
  all 
  these 
  it 
  diners 
  from 
  the 
  mag- 
  

   nified 
  herein 
  described. 
  It 
  is 
  usually 
  larger 
  than 
  the 
  specimen 
  figured. 
  

  

  Symphynota 
  magnifica. 
  Plate 
  V. 
  fig. 
  14. 
  

  

  Testa 
  subrotundd, 
  prope 
  nates 
  valde 
  inflatd, 
  insequilaterali, 
  postice 
  obtuso- 
  

   angulatd 
  ; 
  valvulis 
  tenuibus 
  f 
  epidermide 
  luted, 
  multis 
  radiis 
  viridibus 
  ; 
  natibus 
  

  

  * 
  On 
  my 
  return 
  from 
  Europe 
  I 
  found 
  a 
  box 
  of 
  shells 
  sent 
  to 
  me 
  by 
  Mr 
  Wood 
  from 
  Canton, 
  

   in 
  which 
  were 
  several 
  specimens 
  of 
  a 
  tuberculated 
  Unio, 
  which, 
  on 
  examination, 
  I 
  perceived 
  

   immediately 
  to 
  be 
  anew 
  species, 
  which 
  the 
  distinguished 
  naturalist, 
  John 
  Edward 
  Gray, 
  Esq., 
  

   of 
  London, 
  did 
  me 
  the 
  honour, 
  while 
  in 
  that 
  city 
  last 
  June, 
  to 
  name 
  Leanus. 
  

  

  