﻿g 
  ) 
  Genus 
  IT 
  oetia 
  Gray 
  

   18 
  57, 
  fprom 
  Noe, 
  

   Noah. 
  Fern.) 
  

  

  148 
  

   ' 
  Noetia 
  ponderosa 
  Say 
  (ponderous 
  

   , 
  very 
  thick, 
  sturdy.) 
  

  

  shell 
  

  

  Family 
  Limopsidae 
  . 
  (Lat. 
  lima, 
  a 
  file 
  ->- 
  Gr. 
  

   ranee. 
  Resembling 
  a 
  Lima, 
  a 
  file 
  shell. 
  ) 
  

  

  opsis, 
  aspect, 
  appea- 
  

  

  a 
  ) 
  Gen 
  us 
  L 
  imops 
  i 
  s 
  Sass 
  o 
  

   1627. 
  T^esembling 
  a 
  

   Lima. 
  Fem. 
  ) 
  

  

  I 
  L 
  imopsis 
  af 
  finis 
  V 
  er 
  rill 
  (related 
  to, 
  

  

  closely 
  allied 
  toTsome 
  other 
  species.) 
  

   L 
  imopsis 
  a 
  ntil 
  lensis 
  Pall 
  ( 
  Ant 
  i 
  lie 
  an. 
  ) 
  

   Limops 
  is 
  aurita 
  Erocchi 
  (Lat. 
  auritus, 
  

  

  earedTT 
  

   Limopsis 
  cris 
  tata 
  J 
  effreys 
  ( 
  Lat. 
  cri 
  sta- 
  

   tus, 
  crested, 
  with 
  a 
  crest; 
  with 
  teeth 
  

   on 
  the 
  inner 
  margin 
  of 
  valves.) 
  

   Limopsis 
  minuta 
  Philippi 
  ( 
  mi 
  nu 
  t 
  e 
  , 
  smal 
  1 
  . 
  ) 
  

   Limop 
  s 
  is 
  onchodes 
  Pall 
  (Gr. 
  encodes. 
  

  

  sv/elling 
  out; 
  inflated. 
  

   Limopsis 
  plana 
  Verrill 
  ( 
  f 
  la 
  t 
  . 
  ) 
  

   Limopsis 
  profun 
  d 
  ic 
  o 
  la 
  Verr 
  il 
  l 
  & 
  3u 
  sh( 
  Lat 
  . 
  

  

  pro 
  fundus, 
  deep 
  -•- 
  cola, 
  from 
  colere, 
  to 
  

  

  dwell; 
  dweller 
  of 
  the 
  deep. 
  Dredged 
  from 
  

  

  a 
  depth 
  of 
  1525-1859 
  fathoms.) 
  

   I 
  Limopsis 
  r 
  adiali 
  s 
  Pall 
  (Lat. 
  radius, 
  a 
  

   : 
  ray; 
  teeth 
  somev/hat 
  r 
  adial 
  ly 
  arranged; 
  

   ' 
  sculptured 
  v/ith 
  prominent 
  radial 
  threads) 
  

   ' 
  Limopsis 
  su 
  lcata 
  Verrill 
  & 
  Bush 
  (furroT^ed; 
  

   ■ 
  surface 
  covered 
  with 
  strong 
  concentric 
  

   ' 
  grooves 
  and 
  narrow 
  ribs.) 
  

   ' 
  Limop 
  si 
  s 
  tenella 
  Jeffreys 
  (very 
  delicate, 
  

   ! 
  thin. 
  7 
  

  

  b) 
  Genus 
  Pleurodon 
  ^ood 
  

  

  1840 
  . 
  (Gr. 
  pleuron, 
  ! 
  Pl 
  eurodo 
  n 
  adamsi 
  Pall 
  (Adams'.) 
  

   side 
  -- 
  odous, 
  odont->l 
  

   tooth. 
  Masc.) 
  ^- 
  

  

  Family 
  Glycy 
  meridae. 
  (Gr. 
  glycys, 
  sweet 
  — 
  meris 
  , 
  

   sweet 
  morsel. 
  Common 
  name: 
  Bittersweet 
  Shells.) 
  

  

  a 
  part, 
  share; 
  

  

  Glycymeris 
  americana 
  Pef 
  ranee 
  

  

  ( 
  American; 
  

   the 
  \7est 
  

  

  Genus 
  Glycymeris 
  Da 
  

   Costa 
  177 
  8. 
  (Same 
  ety 
  - 
  

   mology 
  as 
  above. 
  This 
  

   word 
  which 
  should 
  be 
  

   spelt 
  Glycymeris 
  is 
  

   feminine 
  in 
  Latin 
  

   and 
  Greek, 
  ) 
  

  

  found 
  from 
  North 
  Carolina 
  to 
  

   Indies. 
  ) 
  

  

  Glycymeris 
  dec 
  u 
  ssata 
  Linne 
  (decussated; 
  

   striae 
  crossing 
  each 
  other 
  at 
  acute 
  an- 
  

   gles.) 
  Formerly 
  known 
  as 
  Gl 
  ycym.eris 
  pen 
  - 
  

   n 
  acea 
  Laraarck 
  (feathered. 
  J 
  | 
  

  

  Glycymeri 
  s 
  p 
  ectina 
  ta 
  Gmelin 
  (La-t. 
  pecte4 
  

  

  a 
  comb. 
  Shell 
  fan- 
  shaped. 
  J" 
  I 
  

  

  Glycym 
  e 
  ris 
  spe 
  ctralis 
  JMicol 
  (spectral.) 
  I 
  

  

  Glycymerj-s 
  undata 
  Linne 
  "Tv^avy 
  . 
  ) 
  Fo 
  rme 
  r 
  ly 
  

   known 
  as 
  Glycymer 
  i 
  s 
  lineata 
  Reeve 
  (lined, 
  

   striped; 
  with 
  radiating 
  lines. 
  ) 
  

  

  SUBORDER 
  ANISOMYi\RIA 
  

  

  (Gr. 
  anisos, 
  unequal 
  -<- 
  mya, 
  a 
  sea 
  mussel. 
  Unequal 
  li^yaria.) 
  

  

  I. 
  SUPERFAMILY 
  IIYTILACEA 
  

  

  