﻿I 
  

  

  Genus 
  Acmaea 
  Esch 
  - 
  

   scholtz 
  1830. 
  (Pem.) 
  

  

  17 
  

  

  Antillean; 
  also 
  called 
  A. 
  candeana 
  Orbi 
  

  

  gny 
  ; 
  named 
  for 
  Ferdinand 
  de 
  Cande, 
  a 
  

  

  French 
  naval 
  officer 
  who 
  collected 
  shells 
  

  

  in 
  the 
  West 
  Indies.) 
  

   Acmaea 
  jamaicensis 
  Gmelin 
  (Jamaican, 
  fron 
  

  

  Jamaica, 
  British 
  West 
  Indies.) 
  

   Acm 
  aea 
  c 
  u 
  bensis 
  Reeve 
  (Cuban. 
  It 
  is 
  pro- 
  

  

  baTbly 
  the 
  sacie 
  as 
  A. 
  leucopleura 
  Gmelin 
  )j 
  

   Acmaea 
  leucop 
  l'- 
  eura 
  Gnslin 
  (with 
  white 
  si-j 
  

  

  des; 
  ribs 
  are 
  white.] 
  

   Acmaea 
  pustulata 
  Helbling 
  (with 
  pimples, 
  

  

  blisters; 
  also 
  called 
  punctulata 
  Gmelin 
  : 
  

  

  covered 
  with 
  very 
  small 
  dots; 
  reddish 
  

  

  dots 
  between 
  ribs.) 
  

   Acmaea 
  pustulata 
  pulcherrima 
  Guilding 
  

  

  f 
  

  

  Xvery 
  beautiful. 
  

  

  Acmaea 
  rubella 
  Tabricius 
  ( 
  r 
  eddi 
  sh 
  . 
  ) 
  

  

  Acmaea 
  testudinalis 
  testudinalis 
  Miiller 
  

   (Lat. 
  testudo, 
  tortoise; 
  arched, 
  vaulted^ 
  

   like 
  a 
  tortoise. 
  Surface 
  checkered 
  with 
  

   radiating 
  lines 
  crossed 
  by 
  encircling 
  

   lines. 
  ) 
  

  

  Acmaea 
  testudinalis 
  alveus 
  Conrad 
  (Latin 
  

   masc. 
  noun 
  meaning 
  a 
  cavity, 
  socket; 
  

   shell 
  is 
  compressed 
  at 
  the 
  sides.) 
  

  

  Acmaea 
  testudinalis 
  ajnaena 
  Say 
  (charming; 
  

   color: 
  bluish 
  gray 
  with 
  dark 
  brown.) 
  

  

  Acmaea 
  testudinalis 
  fergusoni 
  Wheat 
  (Fer- 
  

   guson' 
  sTJ"" 
  

  

  1 
  1 
  1. 
  SUEERFAI/IILY 
  TROCHACEA 
  

  

  (Gr. 
  troches, 
  Lat. 
  trochus, 
  a 
  wheel; 
  a 
  

   conical. 
  Sometimes 
  called 
  Top 
  Shells.) 
  

  

  top, 
  child's 
  toy. 
  Shells 
  are 
  

  

  1. 
  Family 
  Trochidae 
  . 
  (Same 
  etymology 
  as 
  above.) 
  

  

  ^) 
  Genus 
  Marg 
  arites 
  

   Gray 
  1847 
  . 
  (Gr. 
  a 
  

   pearl. 
  It 
  is 
  masc. 
  

   while 
  Lat. 
  marga- 
  

   rita 
  is 
  feminine.) 
  

  

  Margarites 
  acuminatus 
  Sowerby 
  (pointed; 
  

  

  the 
  spire 
  is 
  sharpT) 
  

   Margarites 
  erythrocoma 
  Pall 
  (Gr.erythros, 
  

  

  wine-colored, 
  red 
  -»-come, 
  or 
  Lat. 
  coma, 
  

  

  a 
  noun 
  meaning 
  hair; 
  shell 
  is 
  yellowish 
  

  

  with 
  rose-pink 
  and 
  opaque 
  white.) 
  

   Margarites 
  filogyrus 
  Pall 
  (Lat. 
  filum, 
  

  

  thread 
  -i- 
  gyrus, 
  a 
  circle; 
  the 
  base 
  has 
  

  

  fine, 
  even, 
  revolving 
  lines.) 
  

   Margarites 
  groenlandicus 
  Gmelin 
  (Green- 
  

  

  land. 
  ) 
  

   Margarites 
  grosvenori 
  Dall 
  (Grosvenor's. 
  ) 
  

   Margarites 
  helicinus 
  Phipps 
  (Gr. 
  helix, 
  

  

  helices, 
  winding, 
  spiral; 
  shell 
  marked 
  

  

  with 
  fine 
  spiral 
  lines 
  at 
  its 
  base.) 
  

   Margarites 
  .johnsoni 
  Dall 
  (Johnson's.) 
  

   Margarites 
  minutissimus 
  Mighels 
  (very 
  

  

  minute; 
  length 
  about 
  one 
  fifth 
  of 
  an 
  

  

  inch.) 
  

   Margarites 
  multilineatus 
  DeKay 
  (with 
  many 
  

  

  lines; 
  whorls 
  with 
  minute 
  revolving 
  

  

  striae 
  and 
  ribs.) 
  

  

  