﻿AND 
  OTHER 
  FAMILIES. 
  93 
  

  

  rous, 
  while 
  the 
  cygnea 
  is 
  viviparous. 
  Should 
  this 
  prove 
  true, 
  they 
  

   must 
  of 
  course 
  be 
  considered 
  distinct. 
  

  

  Jinodonta 
  sulcata. 
  I 
  saw 
  in 
  the 
  Duke 
  de 
  Rivoli's 
  cabinet 
  the 
  spe- 
  

   cimen 
  described 
  by 
  Lamarck. 
  It 
  is 
  a 
  variety 
  of 
  the 
  A. 
  cygnea. 
  and 
  I 
  

   presume 
  is 
  from 
  Europe. 
  The 
  cygnea 
  has 
  no 
  analogue 
  in 
  the 
  United 
  

   States, 
  with 
  which 
  I 
  am 
  acquainted. 
  

  

  Anodonta 
  fragilis. 
  Baron 
  de 
  Ferussac 
  gave 
  me 
  a 
  specimen 
  of 
  this 
  

   species, 
  brought 
  by 
  Monsieur 
  Lapylaie 
  from 
  Newfoundland. 
  When 
  

   I 
  first 
  saw 
  it 
  in 
  Paris, 
  I 
  recognized 
  it 
  instantly 
  to 
  be 
  similar 
  to 
  speci- 
  

   mens 
  I 
  had 
  found 
  in 
  lake 
  Skaneateles, 
  nearly 
  six 
  years 
  since, 
  but 
  which 
  

   I 
  had 
  not 
  yet 
  published. 
  

  

  Anodonta 
  rubens. 
  This 
  interesting 
  species 
  is 
  perhaps 
  the 
  most 
  pon- 
  

   derous 
  of 
  tha 
  genus. 
  It 
  inhabits 
  the 
  Nile 
  as 
  well 
  as 
  the 
  Senegal. 
  My 
  

   specimen, 
  from 
  the 
  latter 
  river, 
  is 
  heavier 
  and 
  more 
  inflated 
  than 
  those 
  

   which 
  I 
  have 
  from 
  the 
  Nile. 
  Deshayes 
  places 
  it 
  in 
  the 
  genus 
  Iridina, 
  

   asserting 
  that 
  the 
  animal 
  differs 
  from 
  the 
  Anodonta, 
  and 
  is 
  similar 
  to 
  

   that 
  of 
  the 
  Iridina. 
  

  

  Jinodonta 
  crispata. 
  This 
  is 
  a 
  distinct 
  and 
  beautiful 
  species, 
  peculiar 
  

   for 
  its 
  transverse 
  furrows. 
  I 
  owe 
  to 
  the 
  kindness 
  of 
  Baron 
  de 
  Ferussac 
  

   the 
  possession 
  of 
  this 
  rare 
  shell, 
  the 
  habitat 
  of 
  which 
  is 
  Cayenne. 
  

   Lamarck 
  says, 
  " 
  dans 
  les 
  rivieres 
  des 
  regions 
  australes 
  ?" 
  

  

  Jinodonta 
  uniopsis 
  is 
  a 
  distinct 
  species, 
  and 
  probably 
  from 
  New 
  

   Holland. 
  

  

  Jinodonta 
  Pennsylvania. 
  I 
  examined 
  the 
  specimen 
  described 
  by 
  

   Lamarck. 
  It 
  is 
  in 
  the 
  cabinet 
  of 
  the 
  Duke 
  de 
  Rivoli, 
  and 
  is 
  the 
  same 
  

   with 
  the 
  undulata 
  of 
  Say, 
  rugosus 
  of 
  Swainson. 
  

  

  Jinodonta 
  intermedia 
  is 
  a 
  variety 
  of 
  anatina. 
  The 
  intermedia 
  of 
  

   Pfeiffer 
  is 
  a 
  variety 
  of 
  cygnea. 
  

  

  Jinodonta 
  trapezialis. 
  The 
  specimen 
  described 
  by 
  Lamarck 
  is 
  in 
  

   the 
  Garden 
  of 
  Plants. 
  It 
  is 
  the 
  giganteus 
  of 
  Spix, 
  who 
  figures 
  it 
  in 
  

   his 
  beautiful 
  work. 
  Its 
  habitat 
  is 
  Brazil. 
  Lamarck 
  says, 
  " 
  des 
  eaux 
  

   douces 
  etrangeres 
  a 
  celles 
  de 
  l'Europe?" 
  It 
  is 
  less 
  transverse, 
  and 
  has 
  

   more 
  volume 
  than 
  the 
  following, 
  which 
  it 
  closely 
  resembles. 
  

  

  Jinodonta 
  exotica. 
  I 
  examined 
  specimens 
  of 
  this 
  species 
  in 
  the 
  

   cabinets 
  of 
  the 
  Duke 
  de 
  Rivoli, 
  Baron 
  de 
  Ferussac 
  and 
  the 
  Garden 
  of 
  

   Plants. 
  Lamarck's 
  habitat 
  says, 
  "les 
  rivieres 
  de 
  ITnde?" 
  I 
  believe 
  

  

  VOL. 
  V. 
  Y 
  

  

  