﻿159 
  

   4. 
  Family 
  Arct 
  i 
  cidae 
  . 
  (Lat, 
  arcticus, 
  arctic, 
  northern.) 
  

  

  Genus 
  Arctica 
  Schu 
  - 
  r 
  

  

  macher 
  1817 
  , 
  Formerly 
  i 
  

  

  known 
  as 
  Genus 
  Cy 
  - 
  | 
  Arctica 
  islan 
  d 
  ica 
  Linne 
  (Icelandic; 
  it 
  

  

  f 
  

  

  rina 
  Lamarck 
  1818, 
  

  

  Lat, 
  Cypris, 
  ano- 
  

   ther 
  name 
  of 
  Venus, 
  

   the 
  goddess 
  of 
  Cy- 
  

   prus.) 
  (Fern.) 
  

  

  lives 
  from 
  the 
  Arctic 
  Ocean 
  to 
  Cape 
  

   Hatter 
  as. 
  ) 
  

  

  5. 
  Family 
  Kelliellidae 
  . 
  (A 
  diminutive 
  of 
  Kellia, 
  a 
  shell 
  named 
  for 
  J. 
  

  

  'Kelly 
  of 
  Dublin.) 
  

  

  Genus 
  Kelliella 
  Sars 
  [ 
  Kelliella 
  nitida 
  Verrill 
  (shining.) 
  

   18^5 
  . 
  (Fern.) 
  |_ 
  

  

  6. 
  Family 
  Trapeziidae 
  . 
  (Gr, 
  and 
  Lat, 
  trapezium, 
  trapezium.) 
  

  

  Genus 
  G 
  orallioph 
  aga 
  

   Blainville 
  182 
  4, 
  {"Gr 
  , 
  

   corallion, 
  coral 
  -i- 
  

   phago, 
  to 
  eat; 
  coral 
  

   eater; 
  coral 
  dweller; 
  

   Fem.) 
  

  

  Coralliophaga 
  coralliophaga 
  Gmelin 
  . 
  

  

  7. 
  Family 
  Sportellidae 
  . 
  ( 
  Lat, 
  sportella, 
  a 
  little 
  basket.) 
  

  

  a) 
  Genus 
  Sportella 
  Des 
  - 
  

   hayes 
  1858 
  . 
  (Fem.) 
  

  

  Sportella 
  pllsbryi 
  Dall 
  (named 
  for 
  Dr. 
  

   Henry 
  A. 
  Pilsbry, 
  Curator 
  of 
  the 
  Depart- 
  

   ment 
  of 
  Mollusca, 
  Academy 
  of 
  Natural 
  

   j 
  Sciences, 
  Philadelphia, 
  1862- 
  ,) 
  

   1 
  Sportella 
  protexta 
  Conra 
  d 
  (woven 
  in 
  fronl^ 
  

   i 
  intertwinedTl 
  

  

  b) 
  Genus 
  Anisodon 
  ta 
  r 
  

  

  Deshayes 
  1858 
  . 
  ^Gr. 
  I 
  Anisodonta 
  corbuloidea 
  Dall 
  (having 
  the 
  

   anisos, 
  unequal, 
  un- 
  j 
  appearance 
  of 
  Corbula 
  or 
  a 
  basket.) 
  

   even 
  -i- 
  odont-, 
  j 
  Anisodonta 
  elliptica 
  Recluz 
  (elliptical.) 
  

   tooth. 
  Unequal 
  teeth, 
  ! 
  

   Fem. 
  ) 
  j_ 
  

  

  c) 
  Genus 
  Basterotia 
  May 
  -j 
  

  

  er 
  1859^ 
  (Named 
  for 
  j 
  Basterotia 
  quadrata 
  granatina 
  Dall 
  ( 
  qua- 
  

  

  B.de 
  Basterot, 
  a 
  I 
  drata; 
  quadrate; 
  granatina: 
  grained, 
  

  

  French 
  naturalist. 
  ! 
  rough.) 
  

  

  Fem. 
  ) 
  i 
  

  

  d) 
  Genus 
  Turtonia 
  Alder 
  ,- 
  

   1848. 
  (Named 
  for 
  j 
  

  

  William 
  Turton, 
  a 
  Turtonia 
  minuta 
  Fabricius 
  (very 
  minute: 
  

   writer 
  of 
  books 
  on 
  \ 
  length: 
  one 
  twelfth 
  of 
  an 
  inch.) 
  

   Conchology, 
  1762-1835. 
  ; 
  

   Fem.) 
  .. 
  

  

  III. 
  SUPERFAiMILY 
  DREISSENACEA 
  

  

  (Named 
  for 
  a 
  Dr. 
  Dreissens, 
  a 
  pharmacist 
  from 
  Mazeyk, 
  Limbourg, 
  Bel- 
  

   gium. 
  In 
  Bulletins 
  de 
  I'Academie 
  Royale 
  des 
  Sciences 
  de 
  Bruxelles, 
  

  

  