﻿not 
  say 
  who 
  Mathilda 
  was.) 
  

  

  W 
  

  

  a) 
  Genus 
  Math 
  ilda 
  Sem- 
  

   per 
  18 
  55. 
  r^em. 
  ) 
  

  

  38 
  

  

  Mathil 
  da 
  amaea 
  Pall 
  ( 
  so 
  called 
  beoause 
  it 
  

  

  look 
  of 
  the 
  Epitonium 
  to 
  

  

  the 
  

   name 
  

  

  Amaea 
  has 
  been 
  applied", 
  I 
  

  

  "has 
  much 
  

   which 
  the 
  

   Call.) 
  

  

  Mathilda 
  ge 
  orgiana 
  Pall 
  (off 
  Georgia.) 
  

   M 
  athilda 
  glob 
  uli 
  fera 
  P 
  all 
  (bearing 
  globu-i 
  

  

  le^with 
  a 
  relatively 
  very 
  large 
  nucleusJi 
  

   Mathilda 
  granifera 
  Pall 
  (bearing 
  granu- 
  . 
  ! 
  

  

  les| 
  it 
  bears 
  prominent 
  granules.) 
  | 
  

   Mathilda 
  hen 
  de 
  rsoni 
  Pall 
  (named 
  for 
  John 
  

  

  an 
  American 
  malacologist. 
  

   Pall 
  (milk 
  color; 
  shell 
  

  

  I 
  Gegania 
  jef 
  fr 
  eysi 
  Pal 
  l 
  (named 
  in 
  honor 
  of 
  

   i 
  John 
  Gwynn 
  Jeffreys, 
  a 
  celebrated 
  Brit- 
  

   I 
  ish 
  malacologist, 
  1809-1885.) 
  

  

  I 
  

  

  B. 
  Henderson, 
  

  

  1870-1923.) 
  

   i 
  Mathilda 
  lacteos 
  a 
  

   ; 
  white.l 
  

  

  i 
  Mathilda 
  rushi 
  Pal 
  l 
  (named 
  in 
  honor 
  of 
  

   ! 
  Pr. 
  W. 
  H. 
  Rush, 
  U.S. 
  Navy.) 
  

   I 
  Mathil 
  d 
  a 
  scitula 
  Pall 
  (Lat, 
  pretty, 
  ele- 
  

   I 
  gant.y 
  

  

  ! 
  Mathi 
  l 
  da 
  yucatecana 
  Pall 
  ( 
  from 
  Yucatan 
  

   ' 
  Strait.) 
  

  

  b) 
  Genus 
  Gegani 
  a 
  Jef 
  - 
  

   freys 
  1884 
  . 
  "[Greek 
  

   feminine 
  proper 
  na- 
  

   me. 
  )Formerly 
  listed 
  

   as 
  Tuba 
  Lea 
  1835. 
  

   (Lat. 
  tuba, 
  a 
  trum- 
  j 
  

   pet.) 
  (Eem.) 
  ;_ 
  

  

  3. 
  Family 
  Architectonicidae 
  . 
  (Gr. 
  architectonicos, 
  pertaining 
  to 
  ar- 
  

   chitecture, 
  belonging 
  to 
  an 
  architect. 
  Common 
  name: 
  Sundials.) 
  

  

  i" 
  Architec 
  toni 
  ca 
  delphinul 
  o 
  ide 
  s 
  Orbigny 
  ( 
  rej- 
  

   i 
  sembling 
  a 
  shell 
  called 
  Pelphinula.) 
  

  

  Architecto 
  n 
  ica 
  krebsi 
  Mbrch 
  (named 
  for 
  

   I 
  Henry 
  Krebs, 
  a 
  conchologist 
  of 
  Saint 
  

   I 
  Thomas, 
  ^Vest 
  Indies.) 
  

  

  Architectonica 
  nobilis 
  R'dding 
  (noble); 
  

   formerly 
  known 
  as 
  A. 
  granulata 
  Lamarck 
  

   ; 
  (granulated, 
  covered 
  with 
  granulations.) 
  

   i 
  Architectonica 
  peracuta 
  Pall 
  (very 
  sharp; 
  

   i 
  periphery 
  is 
  very 
  sharp, 
  ) 
  

   ! 
  Architect 
  o 
  nica 
  sigsbeei 
  Pall 
  ( 
  Sigsbee 
  ' 
  s 
  ; 
  

   ' 
  named 
  in 
  honor 
  of 
  Lieutenant 
  Commander 
  

   1 
  C.P. 
  Sigsbee, 
  U.S. 
  Navy, 
  of 
  the 
  "Blake" 
  

   '. 
  1877-1878.) 
  

  

  ! 
  To 
  rini 
  a 
  bisulcata 
  Orbigny 
  ( 
  double- 
  fur 
  row- 
  

   1 
  ed; 
  "sculptured 
  with 
  revolving 
  grooves 
  

   j 
  which 
  are 
  cut 
  by 
  radiating 
  furrows 
  into 
  

   j 
  granules, 
  the 
  rows 
  just 
  above 
  and 
  below 
  

   ! 
  the 
  suture 
  being 
  strongest 
  . 
  "Pall. 
  ) 
  For- 
  

   i 
  merly 
  known 
  as 
  Architectonica 
  bisulcata 
  

   j 
  Orbigny 
  . 
  

  

  i 
  Torinia 
  canalifera 
  C.E.Adams 
  (having 
  a 
  

   ' 
  channel. 
  This 
  species 
  has 
  never 
  been 
  

   j 
  described.) 
  

  

  a) 
  Genus 
  Architectonica 
  

   Roding 
  1798 
  . 
  (7em. 
  ) 
  

  

  b) 
  Genus 
  Torinia 
  Gray 
  

   1842. 
  (Maybe 
  de 
  r 
  i 
  ved 
  

   from 
  Torino, 
  Turin, 
  

   Gray, 
  like 
  Leach, 
  is 
  

   famous 
  for 
  choosing 
  

   arbitrary 
  names. 
  

   Feminine 
  . 
  ) 
  

  

  