﻿c) 
  

  

  d) 
  

  

  Ch 
  er 
  1817 
  . 
  (Lat. 
  

   ensis, 
  a 
  sword; 
  shells 
  

   are 
  scabbard- 
  shaped. 
  

  

  Masc.) 
  

  

  Genus 
  Solen 
  Linne 
  

   1758. 
  (Gr. 
  a 
  pipe, 
  

   tube. 
  Masc.) 
  

  

  176 
  

  

  Ensis 
  minor 
  Dall 
  (smaller; 
  only 
  3 
  inches 
  

  

  in 
  length, 
  ) 
  

   Ensis 
  megistus 
  Pilsbry 
  & 
  McGinty 
  (Gr. 
  me- 
  

  

  gistos, 
  superlative 
  of 
  megas, 
  big, 
  great; 
  

  

  the 
  greater; 
  it 
  is 
  greater 
  than 
  minor; 
  

   . 
  it 
  reaches 
  five 
  inches.) 
  

  

  Solen 
  viridis 
  Say 
  (green; 
  periostrac\;un 
  is 
  

   light 
  greenT] 
  

  

  Genus 
  So 
  lecurtus 
  r 
  

  

  Blainville 
  182 
  5. 
  ( 
  

  

  From 
  Solen 
  -i- 
  curtus, 
  Solecurtus 
  cumingianus 
  Dunker 
  (named 
  for 
  i 
  

  

  short. 
  Short 
  Solen.) 
  

   Formerly 
  known 
  as 
  

   Psaimnosolen 
  Risso 
  

   1826 
  . 
  (Gr. 
  psammos, 
  

   sand 
  ->• 
  solen, 
  tube.) 
  

   Masc. 
  ) 
  

  

  Hugh 
  Cuming, 
  a 
  celebrated 
  English 
  col- 
  

   lector, 
  1791-1865.) 
  

   Solecurtus 
  sanctaemarthae 
  Orbigny 
  ( 
  of 
  

   Santa 
  Marta 
  • 
  ) 
  

  

  II. 
  SUPEREAMILY 
  IIACTRACE 
  A 
  

   (Gr. 
  mactra, 
  a 
  kneading-trough. 
  Common 
  name; 
  Beach 
  Clams.) 
  

   1. 
  Family 
  Mactridae 
  , 
  (same 
  etymology 
  as 
  above.) 
  

  

  a 
  ) 
  Genus 
  Mactra 
  Linne 
  

   1767. 
  (Fern.) 
  

  

  b 
  ) 
  Genus 
  Spisula 
  Gray 
  

   1857 
  . 
  (lat. 
  spissus, 
  

   thick, 
  compact. 
  Fern, 
  ) 
  

  

  I 
  Mactra 
  fragilis 
  Gmelin 
  (frail, 
  fragile; 
  

   1 
  shell 
  thin, 
  fragile. 
  ) 
  

  

  Spisula 
  solidissima 
  Dillwyn 
  (very 
  strong 
  

   and 
  solid; 
  shell 
  heavy, 
  thick; 
  hinge 
  

   very 
  strong.) 
  

   Spisula 
  solidissima 
  raveneli 
  Conrad 
  ( 
  na- 
  

   med 
  for 
  Edmund 
  Ravenel, 
  M.D,, 
  an 
  Ameri- 
  

   can 
  conchologist. 
  ) 
  

   Spisula 
  solidissima 
  similis 
  Say 
  ( 
  si 
  mi 
  1 
  ar 
  , 
  

   like; 
  but 
  less 
  heavy 
  than 
  Spisula 
  soli- 
  

   dissima 
  Dillwyn.) 
  

   Spisula 
  polynyma 
  Stimpson 
  (Gr. 
  polys, 
  ma- 
  

   ny 
  -•- 
  nerna, 
  thread, 
  filament. 
  "Near 
  the 
  

   lower 
  angle 
  the 
  epidermis 
  is 
  very 
  coar- 
  

   i 
  sely 
  and 
  loosely 
  wrinkled; 
  the 
  surface 
  

   ' 
  has 
  a 
  rugged 
  appearance 
  from 
  the 
  coarse 
  

   ' 
  lines 
  of 
  growth." 
  Gould 
  & 
  Binney,) 
  

  

  c) 
  Genus 
  Mulinia 
  Gray 
  [ 
  Mulinia 
  lateralis 
  Say 
  (lateral.) 
  

  

  18 
  57 
  , 
  ( 
  One 
  of 
  the 
  se 
  | 
  Mulinia 
  lateralis 
  corbuloides 
  Deshayes 
  

   meaningless 
  names 
  .resembling 
  a 
  Corbula, 
  a 
  little 
  basket.) 
  

   invented 
  by 
  Gray.Fem.)' 
  

  

  d 
  ) 
  Genus 
  Labiosa 
  Moller 
  ," 
  

   1852 
  . 
  (Labiose, 
  la- 
  | 
  

  

  biate? 
  posterior 
  end 
  i 
  Labiosa 
  lineata 
  Say 
  (lined; 
  decorated 
  

   slightly 
  gaping, 
  ) 
  Also! 
  with 
  fine 
  regular 
  lines.) 
  

   listed 
  as 
  Genus 
  Ana 
  ti- 
  i 
  Labiosa 
  plicatella 
  Lamarck 
  (ribbed, 
  plai- 
  

   na 
  Schumacher 
  1817 
  . 
  ! 
  ted'.') 
  Also 
  called 
  Anatina 
  canaliculata 
  

   (Lat. 
  anas, 
  anatis,a 
  j 
  Say 
  (channeled; 
  it 
  has 
  concentric 
  groo- 
  

   duck; 
  a 
  little 
  duck; 
  j 
  ves.) 
  

  

  