﻿AND 
  OTHER 
  FAMILIES. 
  89 
  

  

  Unio 
  carinifera 
  is 
  also 
  the 
  complanatus, 
  which 
  inhabits 
  so 
  large 
  a 
  

   space 
  of 
  our 
  country 
  east 
  and 
  west 
  of 
  the 
  Alleghany 
  mountains. 
  

  

  Unio 
  Georgina 
  is 
  also 
  from 
  the 
  mine 
  complanatus. 
  

  

  Unio 
  clava. 
  This 
  is 
  the 
  scaknia 
  of 
  Rafinesque 
  : 
  modioliformis 
  of 
  

   Say. 
  

  

  Unio 
  recta 
  is 
  Barnes's 
  prselongus. 
  Lamarck 
  has 
  precedence. 
  

  

  Unio 
  naviformis. 
  This 
  is 
  the 
  cylindricus 
  of 
  Say, 
  who 
  has 
  prece- 
  

   dence. 
  

  

  Unio 
  glabrata. 
  This 
  is 
  the 
  complanatus. 
  The 
  specimen 
  in 
  the 
  

   Duke 
  de 
  Rivoli's 
  cabinet 
  is 
  most 
  likely 
  from 
  our 
  eastern 
  waters. 
  

  

  Unio 
  nasuta. 
  The 
  specimen 
  from 
  which 
  this 
  description 
  was 
  made, 
  

   is 
  now 
  in 
  the 
  museum 
  of 
  the 
  Garden 
  of 
  Plants. 
  It 
  is 
  a 
  young 
  gibbosus 
  

   of 
  Barnes. 
  It 
  is 
  not 
  the 
  same 
  with 
  Say's 
  nasutus, 
  as 
  Lamarck 
  sus- 
  

   pected 
  it 
  to 
  be. 
  As 
  Lamarck 
  described 
  the 
  shell 
  before 
  Barnes, 
  he 
  

   has 
  a 
  claim 
  for 
  the 
  species 
  ; 
  but 
  having 
  used 
  a 
  name 
  pre-occupied 
  by 
  

   another 
  shell, 
  he 
  loses 
  it. 
  I 
  therefore 
  would 
  continue 
  Mr 
  Barnes's 
  

   name 
  gibbosus. 
  

  

  Unio 
  ovata 
  is 
  the 
  ovatus 
  of 
  Say. 
  Var. 
  Z>, 
  I 
  was 
  not 
  enabled 
  to 
  see 
  

   — 
  from 
  the 
  description 
  I 
  presume 
  it 
  to 
  be 
  a 
  variety 
  of 
  occidens 
  (nobis). 
  

  

  Unio 
  rotundata. 
  The 
  specimen 
  shown 
  to 
  me 
  by 
  Baron 
  de 
  Ferussac, 
  

   whose 
  cabinet 
  is 
  cited 
  for 
  one. 
  of 
  the 
  two 
  specimens 
  seen 
  by 
  Lamarck, 
  

   is 
  a 
  small 
  suborbiculata 
  (Lam.), 
  a 
  large 
  specimen 
  of 
  which 
  the 
  baron 
  

   had 
  the 
  goodness 
  to 
  give 
  me, 
  and 
  I 
  have 
  reason 
  to 
  believe 
  it 
  to 
  be 
  the 
  

   individual 
  cited 
  by 
  Lamarck. 
  It 
  is 
  the 
  subglobosus 
  (nobis), 
  and 
  the 
  

   glebulus 
  of 
  Say. 
  

  

  Unio 
  littoralis. 
  This 
  interesting 
  species 
  inhabits 
  most 
  parts 
  of 
  Eu- 
  

   rope. 
  It 
  has 
  been 
  brought 
  also 
  from 
  the 
  Tigris 
  by 
  some 
  of 
  the 
  French 
  

   scientific 
  expeditions, 
  and 
  I 
  owe 
  to 
  the 
  kindness 
  of 
  the 
  administration 
  

   of 
  the 
  Garden 
  of 
  Plants 
  a 
  fine 
  specimen 
  from 
  Bagdad. 
  The 
  specimens 
  

   from 
  this 
  locality 
  are 
  less 
  transverse, 
  and 
  Lamarck 
  considered 
  the 
  dif- 
  

   ference 
  sufficient 
  to 
  found 
  a 
  species, 
  semirugata, 
  by 
  which 
  name 
  they 
  

   are 
  labelled 
  in 
  that 
  institution. 
  After 
  examining 
  carefully 
  suites 
  from 
  

   Europe 
  and 
  Asia 
  with 
  Baron 
  de 
  Ferussac, 
  he 
  accorded 
  with 
  me 
  in 
  

   opinion, 
  that 
  there 
  was 
  not 
  sufficient 
  difference 
  to 
  warrant 
  their 
  sepa- 
  

   ration. 
  

  

  vol. 
  v. 
  — 
  x 
  

  

  