﻿56 
  : 
  

  

  printing, 
  so 
  there 
  seems 
  to 
  be 
  no 
  short 
  J 
  

   word 
  for 
  that 
  in 
  Latin; 
  "digitisignatus'^ 
  

   would 
  perhaps 
  be 
  a 
  little 
  too 
  mouth- 
  , 
  

   filling 
  for 
  busy 
  malacologists, 
  " 
  Hence 
  j 
  

   only 
  "signatuin", 
  

  

  IX 
  . 
  SUPERFAI'IILY 
  HETEROPODA 
  

  

  (Gr, 
  heteros, 
  other 
  -h 
  pous, 
  pod-, 
  foot. 
  The 
  foot 
  forms 
  a 
  median 
  fin.)j 
  

  

  1. 
  F 
  a 
  mi 
  ly 
  At 
  1 
  an 
  t 
  i 
  d 
  ae 
  . 
  (Prom 
  Atlas, 
  the 
  Atlantic, 
  the 
  shells 
  are 
  pela- 
  

   gic; 
  or 
  Atlas, 
  Atlant-, 
  the 
  Titan, 
  used 
  ironically, 
  as 
  the 
  shells 
  

   are 
  snail 
  and 
  fragile.) 
  

  

  a 
  ) 
  Ge 
  nus 
  Atlant 
  a 
  Le 
  - 
  

   sueur 
  1817. 
  {"Fern.) 
  

  

  b 
  ) 
  Genus 
  O 
  xygyrus 
  Ben 
  - 
  

   son 
  1855 
  . 
  ( 
  Gr.oxys 
  , 
  

   sharp 
  — 
  gyros, 
  

   round, 
  ring, 
  cir- 
  

   cle, 
  Masc. 
  ) 
  

  

  Atlanta 
  gaud 
  ich 
  a 
  udi 
  Gray 
  ( 
  Gaudi 
  chaud 
  ' 
  s 
  . 
  ) 
  

   Atlanta 
  inclinat 
  a 
  Gray 
  (inclined. 
  ) 
  

   Atla 
  nta 
  laraanoni 
  Gra 
  y 
  ( 
  Lamanon 
  ' 
  s 
  , 
  ) 
  

   Atlanta 
  pe 
  roni 
  Le 
  su 
  eur 
  ( 
  Pe 
  r 
  o 
  n 
  ' 
  s 
  . 
  ) 
  

  

  I 
  Atl 
  anta 
  p 
  ulchel 
  la 
  Ver 
  rill 
  (rather 
  pretty.) 
  

  

  ■ 
  Atlanta 
  rosea 
  Gray 
  (pink.) 
  

  

  i 
  Oxygy 
  rus 
  keraudren 
  i 
  Lesueur 
  (Keraudren' 
  s.) 
  

  

  2. 
  Family 
  Carinariidae. 
  (Lat. 
  carina, 
  

   mon 
  name: 
  Keeled 
  Paper 
  Shells.) 
  

  

  a 
  keel; 
  shaped 
  like 
  a 
  keel. 
  Com- 
  

  

  Genus 
  Car 
  inar 
  ia 
  La 
  - 
  

   marck 
  1801. 
  fFera, 
  ) 
  

  

  I 
  Carinari 
  a 
  

   marck' 
  

  

  lamarcki 
  Peron 
  & 
  Lesueur 
  (La- 
  

  

  s; 
  named 
  in 
  honor 
  of 
  Jean 
  Baptiste 
  

   de 
  Monet, 
  chevalier 
  de 
  Lamarck, 
  a 
  cele- 
  

   brated 
  French 
  naturalist, 
  1744-1829.) 
  

   This 
  species 
  was 
  formerly 
  called 
  medi 
  - 
  

   terranea, 
  (Mediterranean.) 
  

  

  3. 
  Fa 
  mily 
  Pterotracheidae 
  . 
  

   rugged. 
  Body 
  ends 
  in 
  a 
  

  

  a) 
  Gen 
  us 
  Pterotr 
  achea 
  

   For 
  ska 
  1 
  1775. 
  (Fern.) 
  

  

  b) 
  Genus 
  

  

  (Gr. 
  pteron, 
  

   false 
  caudal 
  

  

  a 
  wing 
  -•- 
  tracheia, 
  rough, 
  

   fin.) 
  

  

  Souley 
  et 
  

  

  Firoloi 
  d 
  a 
  Le 
  - 
  

   sue 
  ur 
  IS 
  1 
  7 
  . 
  "[Re 
  s 
  am- 
  

   bling 
  a 
  Firola.Fem.) 
  

  

  Pt 
  erotr 
  a 
  chea 
  ker 
  audreni 
  Eydoux 
  & 
  

   {"Keraudren 
  ' 
  s3 
  

  

  Firoloida 
  lesueuri 
  Orbigny 
  ( 
  Le 
  sueur 
  ' 
  s 
  ; 
  

   named 
  for 
  Charles 
  A. 
  Lesueur, 
  a 
  French 
  

   ichthyologist 
  and 
  conchologist, 
  1778-184 
  

  

  (From 
  la 
  Natice, 
  name 
  

   word 
  natica, 
  buttock. 
  

   Shells; 
  Shark 
  Eyes.) 
  

  

  X. 
  s 
  uperfa:.ii 
  ly 
  naticagea 
  

  

  given 
  by 
  Adanson, 
  1757, 
  Taken 
  from 
  the 
  

   rump. 
  Shells 
  are 
  globular. 
  Common 
  name 
  

  

  Latin 
  

   ; 
  Moon 
  

  

  Family 
  Naticidae 
  . 
  (Same 
  etymology 
  as 
  above.) 
  

  

  a) 
  Genu 
  s 
  Polinic 
  e 
  s 
  Mont 
  -j 
  Polinices 
  brunneus 
  Link 
  (Lat. 
  brunus, 
  

  

  color 
  is 
  brownish.) 
  

  

  fort_l 
  810. 
  (This 
  is 
  

   Montfort's 
  spelling. 
  

   Poljrnices 
  would 
  be 
  

  

  brown; 
  _ 
  _ 
  

  

  Polinice 
  s 
  lacteus 
  Guilding 
  ( 
  mi 
  Iky-whi 
  te 
  . 
  ) 
  

   Polinices 
  leptaleu 
  s 
  V/atson 
  (th 
  in, 
  delicate 
  

  

  