﻿Lat. 
  rotella» 
  small 
  

   wheel, 
  Fem. 
  ) 
  

  

  s 
  ) 
  Genus 
  C 
  ycl 
  o 
  s 
  t 
  r 
  erne 
  1 
  la 
  

   Bu 
  sh 
  189 
  7. 
  (Diminu- 
  

   tive 
  of 
  Cyclostrema; 
  

   circular 
  mouth. 
  Fern.) 
  

  

  t) 
  Genus 
  Dillwynella 
  

   Pa 
  ll 
  1889 
  . 
  (Named 
  

   for 
  Lewis 
  W.Dillwyn, 
  

   an 
  English 
  concho- 
  

   logist. 
  Pern.) 
  

  

  24 
  

   I 
  striated.) 
  

   ! 
  Pseudo 
  ro 
  tella 
  solida 
  Pall 
  (solid, 
  firm.) 
  

  

  Cyclostremella 
  humilis 
  Bush 
  ( 
  humble 
  , 
  low 
  . 
  ] 
  

  

  Dill\Tynella 
  mo 
  d 
  esta 
  Pall 
  (modest; 
  little 
  

   shell.) 
  

  

  2. 
  Family 
  Turbinida 
  e. 
  (Lat, 
  turbo, 
  turbin-, 
  a 
  whirl, 
  whipping-top. 
  j 
  

   Common 
  name: 
  Whipping-Top, 
  ) 
  j 
  

  

  Cyclostrema 
  amabile 
  Pall 
  (lovely, 
  attrac-j 
  

  

  tive. 
  ) 
  I 
  

  

  Cyclostr 
  e 
  ma 
  cancellatum 
  Marryat 
  (covered 
  I 
  

  

  with 
  fine 
  axial 
  striae 
  crossed 
  by 
  spi- 
  j 
  

  

  ral 
  threads 
  . 
  ) 
  

  

  Cyclostrema 
  fulgidum 
  Jeffreys 
  (brilliant 
  J 
  

  

  shining. 
  ) 
  

   Cyclostrema 
  pompholyx 
  Pall 
  ( 
  a 
  bubble 
  . 
  ) 
  

   Cyclostrema 
  r 
  ugulosuun 
  G.O. 
  S 
  ars 
  (with 
  lit- 
  

   tle 
  wrinkles; 
  somewhat 
  wrinkled.) 
  

   Cyclostrema 
  tortuganum 
  Pall 
  ( 
  dredged 
  off 
  

   ■ 
  Tortugas 
  Islands, 
  Florida.) 
  

   I 
  Cyclostrema 
  thom 
  asi 
  Pilsbry 
  (named 
  for 
  

   ' 
  Thomas 
  L. 
  McGinty, 
  1907- 
  ,) 
  

   ' 
  Cyclostrema 
  valvatoides 
  Jeffreys 
  ( 
  shaped 
  

   '. 
  like 
  a 
  Valvata. 
  ) 
  

  

  b) 
  Genus 
  Cithna 
  A. 
  Adams 
  I 
  Cithna 
  tenella 
  costulata 
  Jeffreys 
  (tenel- 
  

  

  1865 
  . 
  (Perived 
  from 
  I 
  la, 
  rather 
  delicate; 
  costulata, 
  with 
  

  

  Cythnos, 
  one 
  of 
  the 
  i 
  costae.) 
  

  

  Cyclades 
  Islands, 
  AE- 
  i 
  Cithna 
  olivacea 
  Verrill 
  (olive-brown.) 
  

   gean 
  Sea. 
  Fem.) 
  

  

  a 
  ) 
  Genus 
  Cyclostrema 
  

   Marryat 
  1818 
  . 
  (Gr. 
  

   cycles, 
  a 
  circle, 
  

   round 
  -i- 
  trema,hole, 
  

   aperture. 
  Mouth 
  is 
  

   circular, 
  IJeuter.) 
  

  

  c 
  ) 
  Genus 
  L 
  i 
  otia 
  Gray 
  

   1847 
  . 
  Xgv. 
  leiotes, 
  

   smoothness. 
  Fem.) 
  

  

  Liotia 
  bairdi 
  Pall 
  (Baird's; 
  named 
  for 
  

   Professor 
  Spencer 
  F, 
  Baird, 
  U,S, 
  Fish 
  

   Commissioner. 
  Formerly 
  Aren 
  e 
  bairdi 
  . 
  ) 
  

  

  Liotia 
  bairdi 
  trullata 
  Pall 
  ^Lat. 
  trulla 
  

   a 
  ladle 
  ^^ 
  dipper, 
  ) 
  

  

  Liotia 
  microgramma 
  t 
  a 
  Pall 
  (Gr, 
  small 
  let- 
  

   ters, 
  characters; 
  shell 
  minute: 
  2 
  mm.) 
  

  

  Arene 
  briareus 
  Pall 
  (Briareus, 
  a 
  hundred 
  

   armed 
  giant; 
  the 
  v/hole 
  shell 
  is 
  covered 
  

   with 
  erect 
  long 
  channeled 
  spines.) 
  

  

  Arene 
  briareus 
  aspina 
  Pall 
  (Gr. 
  "a", 
  not, 
  

   v;ithout 
  -<- 
  Lat. 
  spina, 
  spine; 
  destitute 
  

   of 
  any 
  spines.) 
  

  

  Arene 
  briareus 
  perforata 
  Pall 
  (pierced 
  

   through, 
  perforated. 
  ) 
  

  

  Arene 
  cruentata 
  Miihlfeld 
  (stained 
  with 
  

   blood.l 
  

  

  Arene 
  gemma 
  Tuomey 
  & 
  Holmes 
  (gem; 
  it 
  is 
  

  

  