﻿t) 
  

  

  c) 
  

  

  d) 
  

  

  e) 
  

  

  Genus 
  Acir 
  sa 
  M 
  orch 
  

   1857,'CGr. 
  a, 
  ("priva- 
  

   tive), 
  without 
  4- 
  

   cirsos, 
  a 
  dilated 
  

   vein. 
  Varices 
  are 
  

   obsolete; 
  sculpture 
  

   much 
  reduced, 
  Pem, 
  ) 
  

  

  Genus 
  Cir 
  sot 
  r 
  ema 
  

   Mo 
  rch 
  1852 
  7Tgt 
  . 
  

   cirsos, 
  a 
  dilated 
  

   vein 
  -I- 
  trema, 
  a 
  

   hole, 
  aperture, 
  

   ITeuter, 
  ) 
  

  

  Gen 
  us 
  Sthenorytis 
  

   Conrad 
  1862 
  . 
  (Gr. 
  

   sthenos, 
  strength 
  

   -+- 
  rytis, 
  wrinkle; 
  

   strong 
  wrinkles 
  or 
  

   costae, 
  Feni, 
  ) 
  

  

  4 
  

  

  48 
  

   shell 
  minute; 
  length 
  4,5 
  mm 
  to 
  6 
  mm,) 
  

  

  Bpitonium 
  eulitum 
  Pall 
  (Gr. 
  eu, 
  well 
  -r- 
  

   litos, 
  smooth; 
  shell 
  polished, 
  whorls 
  

   smooth, 
  ) 
  

  

  Epiton 
  ium 
  g 
  roenlandicum 
  Perry 
  ( 
  from 
  Gree 
  

   land.J" 
  

  

  Epitonium 
  f 
  o 
  r 
  mosissimum 
  Jeffreys 
  (very 
  

   handsomeTl 
  

  

  Epitonium 
  polacium 
  Pall 
  (impossible 
  to 
  

   find 
  the 
  meaning 
  of 
  this 
  word; 
  prohahly 
  

   it 
  is 
  a 
  misprint 
  for 
  poliacum 
  \7hich 
  

   would 
  "be 
  derived 
  from 
  Lat, 
  polia, 
  a 
  pre- 
  

   cious 
  stone 
  of 
  grayish 
  color, 
  or 
  Gr, 
  

   polios, 
  gray, 
  white, 
  as 
  the 
  shell 
  is 
  

   grayish-white.) 
  

  

  Ac 
  irsa 
  gracilis 
  Verrill 
  (slender, 
  thin,) 
  

   Acir 
  sa 
  costulata 
  Mighels 
  & 
  Adams 
  ( 
  \7 
  i 
  t 
  h 
  

   costae; 
  the 
  costae 
  are 
  numerous 
  but 
  in- 
  

   conspicuous. 
  Acirsa 
  borealis 
  Beck 
  (nor- 
  

   thern) 
  is 
  the 
  same, 
  ) 
  

  

  i 
  Cirso 
  t 
  rema 
  dalli 
  Rehder 
  (named 
  for 
  Tilli- 
  

   I 
  am 
  H. 
  Pall, 
  an 
  eminent 
  Ajnerican 
  raalaco- 
  

   logist, 
  1845-1927.) 
  

  

  Cirsotrema 
  pilsbryi 
  McGinty 
  (named 
  for 
  

   Pr, 
  Eenry 
  A. 
  Pilsbry, 
  one 
  of 
  the 
  great- 
  

   est 
  American 
  malacologists, 
  1862- 
  .) 
  

  

  Cirsotrema 
  cochl 
  ea 
  Sowerby 
  ( 
  Lat 
  . 
  noun 
  

   meaning 
  a 
  snail. 
  Y 
  

  

  Cirsot 
  r 
  ema 
  leeanum 
  Verrill 
  (named 
  in 
  ho- 
  

   nor 
  of 
  Professor 
  L,A,Lee, 
  of 
  Bowdoin 
  

   College 
  and 
  of 
  the 
  U.S. 
  Eish 
  Cormr.ission^ 
  

  

  Cirs 
  ot 
  rema 
  linteatum 
  Schwengel 
  (dressed 
  

   in 
  linen; 
  transparent, 
  glossy 
  white,) 
  

  

  Sthenoryti 
  s 
  cubana 
  B 
  a 
  rts 
  ch 
  ( 
  from 
  Cuba 
  . 
  ) 
  

  

  Sthenory 
  t 
  is 
  e 
  pae 
  E 
  artsch 
  ~Tmeaning 
  un- 
  

   known.) 
  

  

  Sthenorytis 
  h 
  endersoni 
  Bartsch 
  (named 
  foi 
  

   John 
  B. 
  Henderson, 
  an 
  Ai^erican 
  malacolo- 
  

   gist, 
  1870-1923,) 
  

  

  Sthenorytis 
  pernobilis 
  Eischer 
  & 
  Bernard 
  i 
  

  

  Genus 
  Opali 
  a 
  H.& 
  A 
  . 
  

   Adams 
  1853 
  , 
  (Lat 
  . 
  

   opalus, 
  opal, 
  a 
  

   precious 
  stone. 
  Color 
  

   TKhite 
  to 
  light 
  ivory, 
  i 
  

  

  Xvery 
  nobleTy 
  

  

  Opalia 
  watsoni 
  d 
  e 
  Boury 
  ( 
  '.7a 
  t 
  s 
  o 
  n 
  ' 
  s 
  ; 
  name 
  d 
  

   for 
  R.B.Watson, 
  a 
  British 
  conchologist, 
  

   of 
  the 
  "Challenger" 
  expedition,) 
  

  

  Opalia 
  bur 
  ryi 
  Clench 
  & 
  Turner 
  ( 
  Bur 
  ly 
  ' 
  s 
  ; 
  

   named 
  for 
  L.A.Burry, 
  collector.) 
  

  

  Opalia 
  crenata 
  Linne 
  (notched, 
  indented; 
  

   crenulations 
  at 
  the 
  suture,) 
  

  

  Op 
  alia 
  hotessieriana 
  Orbigny 
  Earned 
  for 
  

   St, 
  Cyr 
  Hotessier, 
  a 
  conchologist 
  of 
  

   Guadeloupe, 
  French 
  West 
  Indies,) 
  

  

  Opali 
  a 
  andrewsi 
  Verrill 
  (Andrev/s'; 
  named 
  

   for 
  E.A.Andrews, 
  of 
  the 
  U.S.Eish 
  ConmiiS' 
  

  

  SI 
  

  

  ion. 
  ) 
  

  

  