﻿flASTROPODA 
  

  

  129 
  

  

  profile. 
  The 
  striulae 
  are 
  more 
  or 
  less 
  expressed, 
  more 
  or 
  less 
  distant, 
  and 
  rarely 
  slightly 
  

   granular; 
  they 
  are 
  always 
  most 
  developed 
  on 
  the 
  back, 
  and 
  subobsolete 
  in 
  front. 
  The 
  genus 
  

   (as 
  described 
  by 
  Forbes) 
  is 
  curiously 
  like 
  an 
  Emarginula 
  without 
  a 
  slit. 
  The 
  Sitcha 
  speci- 
  

   mens 
  range 
  to 
  long. 
  .57, 
  lat. 
  .48, 
  alt. 
  .2. 
  In 
  color, 
  sculpture, 
  etc., 
  it 
  exactly 
  resembles 
  

   L. 
  caeca; 
  but 
  that 
  species, 
  as 
  dredged 
  off 
  Norway, 
  by 
  M'Andrew 
  and 
  as 
  represented 
  in 
  the 
  

   Cumingian 
  collection, 
  is 
  conical, 
  while 
  caecoides 
  is 
  Ancyloid. 
  Messrs. 
  Adams 
  figure 
  Pro- 
  

   pilidium 
  ancvloide, 
  Forbes 
  and 
  Hani., 
  under 
  the 
  name 
  of 
  Lcf'cta 
  caeca; 
  but 
  the 
  examples 
  

   above 
  quoted 
  are 
  widely 
  different. 
  My 
  most 
  reliable 
  friend 
  Mr. 
  Arthur 
  .-Kdams, 
  collected 
  

   specimens 
  both 
  of 
  caeca 
  and 
  caecoides 
  in 
  the 
  Japanese 
  waters. 
  The 
  shells 
  collected 
  by 
  Dr. 
  

   Stimpson 
  in 
  the 
  North 
  Pacific 
  Exploring 
  Expedition 
  (Hakodadi 
  and 
  Arctic 
  Ocean) 
  were 
  

   marked 
  Lepeta 
  'caeca, 
  var. 
  conccntrica 
  Midd.' 
  by 
  Dr. 
  Gould: 
  Smiths. 
  Cab. 
  no. 
  1718" 
  [Car- 
  

   penter, 
  1866c, 
  p. 
  347] 
  

  

  The 
  holotype 
  has 
  a 
  printed 
  label, 
  "Type 
  Puget 
  Sound 
  Kennerley." 
  

  

  Holotypc. 
  — 
  U. 
  S. 
  National 
  Museum, 
  no. 
  11849 
  

  

  Distribution.— 
  Fuget 
  Sound 
  (type) 
  ; 
  Arctic 
  and 
  Bering 
  Seas 
  to 
  Hakodate, 
  Japan,^^ 
  the 
  

   Aleutian 
  Islands, 
  and 
  south 
  to 
  the 
  Farallon 
  Islands, 
  California 
  (Dall) 
  ; 
  10-30 
  fathoms 
  

   (Willett). 
  

  

  Family 
  TROCttiD.A.E 
  

   Genus 
  Margarites 
  Leach 
  in 
  Gray, 
  1847 
  

  

  Margarites 
  Le.ach 
  in 
  Gray, 
  1847, 
  Ann. 
  Mag. 
  Nat. 
  Hist., 
  vol. 
  20, 
  p. 
  271 
  ; 
  Dall, 
  1909, 
  U. 
  S. 
  

   Geol. 
  Sur., 
  Prof. 
  Paper 
  59, 
  p. 
  97 
  

  

  Margarita 
  Leach 
  in 
  Ross, 
  1819, 
  Voyage 
  of 
  Discovery, 
  H.M.S. 
  Isabella 
  and 
  Alexander, 
  

   Baffin's 
  Bay, 
  app. 
  II, 
  p. 
  LXI, 
  not 
  Margarita 
  Leach, 
  1814, 
  Zool. 
  Misc., 
  vol. 
  1, 
  p. 
  107 
  fide 
  

   Neave 
  

  

  Eumargarita 
  Fischer, 
  1885, 
  Man. 
  de 
  Conchyliol., 
  p. 
  825, 
  pi. 
  X, 
  fig. 
  7 
  M. 
  Iielicina 
  (Fabricius) 
  

  

  Type 
  species 
  by 
  monotypy, 
  Margarites 
  diaphana 
  = 
  Helix 
  margarita 
  Montagu 
  = 
  Turbo 
  

   helicinus 
  Fabricius, 
  1780, 
  Fauna 
  Groenlandica, 
  p. 
  393 
  = 
  T. 
  helicinus 
  Phipps, 
  1774, 
  Voy. 
  

   North 
  Pole 
  in 
  1773, 
  app., 
  p. 
  198. 
  Recent. 
  Circumboreal, 
  to 
  England, 
  in 
  Europe, 
  Massachu- 
  

   setts 
  Bay 
  on 
  west 
  Atlantic, 
  and 
  to 
  Catalina 
  Island 
  on 
  the 
  Pacific 
  Coast. 
  Pilsbry, 
  1889, 
  

   Man. 
  Conch., 
  vol. 
  XI, 
  p. 
  286 
  synonymy, 
  pi. 
  64, 
  figs. 
  45-47 
  

  

  Margarites 
  lacunatus 
  (Carpenter) 
  

   (Plate 
  17, 
  figs. 
  22, 
  23) 
  

  

  Gibbula 
  lacunafa 
  Carpenter, 
  1864b, 
  Aug., 
  p. 
  627, 
  653; 
  Reprint, 
  1872, 
  p. 
  113, 
  139; 
  1864, 
  Dec, 
  

   Ann. 
  Mag. 
  Nat. 
  Hist., 
  ser. 
  3, 
  vol. 
  XIV. 
  p. 
  425; 
  Reprint, 
  1872, 
  p. 
  239; 
  Cooper, 
  1867, 
  Geog. 
  

   Cat. 
  AIoll., 
  Geol. 
  Sur. 
  California, 
  p. 
  26; 
  Dall, 
  1871, 
  Amer. 
  Jour. 
  Conch., 
  vol. 
  VII, 
  p. 
  128 
  

   under 
  .1/. 
  lirulata; 
  Pilsbry, 
  1889, 
  Man. 
  Conch., 
  vol. 
  XI, 
  p. 
  297 
  under 
  .1/. 
  lirulata 
  

  

  Margarites 
  (Lirularia) 
  lacunafa 
  (Carpenter), 
  Dall, 
  1921, 
  p 
  179; 
  Oldroyd, 
  1924, 
  Pub. 
  Puget 
  

   Sound 
  Biol. 
  Station, 
  vol. 
  4, 
  p. 
  176; 
  1927. 
  vol. 
  II. 
  pt. 
  Ill, 
  p. 
  206 
  

  

  Margarites 
  lacunatus 
  (Carpenter), 
  Keen, 
  1937, 
  p. 
  39; 
  Burch, 
  1946. 
  no. 
  58. 
  p. 
  9. 
  

  

  "Very 
  small, 
  nearly 
  smooth, 
  umbilicus 
  henimed-in 
  by 
  swelling 
  of 
  columella.." 
  [Carpenter, 
  

   1864, 
  p. 
  653] 
  

  

  The 
  following 
  line 
  should 
  be 
  added 
  to 
  the 
  copy 
  of 
  Carpenter's 
  description 
  ( 
  1864. 
  Dec.) 
  as 
  

   republished 
  by 
  Oldroyd 
  to 
  make 
  that 
  copy 
  complete 
  : 
  

  

  "Hab. 
  Neeah 
  Bay 
  (Szivn)." 
  [Carpenter, 
  1864b, 
  p. 
  425] 
  

  

  The 
  label 
  of 
  the 
  holotype 
  reads, 
  "Type 
  Neeah 
  Bay, 
  W.T.J. 
  G. 
  Swan." 
  

  

  Holotvpc. 
  — 
  U. 
  S. 
  National 
  Museum, 
  no. 
  15535b 
  

  

  Distribution.— 
  yieah 
  Bav, 
  Washington 
  (type), 
  Neah 
  Bay, 
  Washington, 
  to 
  San 
  Diego, 
  

   California 
  (^Dall) 
  

  

  Margarites 
  tenuisculptus 
  Carpenter 
  

  

  Margarita 
  (? 
  v. 
  [Vahlii]) 
  tenuisculpta 
  Carpenter, 
  1864b, 
  p. 
  603, 
  653; 
  Reprint, 
  1872, 
  p. 
  89, 
  

   139- 
  1865, 
  Acad. 
  Nat. 
  Sci. 
  Philadelphia, 
  Proc, 
  vol. 
  17, 
  p. 
  61; 
  Cooper, 
  1867, 
  Geog. 
  Cat. 
  

   Moll., 
  Geol. 
  Sur. 
  California, 
  p. 
  26; 
  Dall, 
  1871, 
  Amer. 
  Jour. 
  Conch., 
  vol. 
  VII, 
  p. 
  128 
  

   under 
  M. 
  liridata 
  Carpenter 
  in 
  part; 
  Pilsbry, 
  1889, 
  Man. 
  Conch., 
  vol. 
  XI, 
  p. 
  297 
  under 
  

   M. 
  lirulata 
  

  

  ^'■^ 
  Keen 
  (1941, 
  p. 
  481) 
  did 
  not 
  include 
  this 
  species 
  in 
  the 
  list 
  of 
  species 
  common 
  to 
  Japan 
  

   and 
  western 
  North 
  America. 
  Tadashige 
  Habe 
  (June 
  22, 
  1955, 
  personal 
  communication) 
  

   stated 
  that 
  this 
  species 
  has 
  not 
  been 
  found 
  since 
  the 
  original 
  discovery. 
  

  

  