﻿GASTROPODA 
  

  

  149 
  

  

  transversim 
  in 
  liris 
  subirregulariter 
  dispositis 
  ; 
  apcrtura 
  ad 
  basin 
  posteriusaue 
  producta 
  ; 
  

   columella 
  paulum 
  excavata, 
  non 
  umbilicata. 
  

  

  "Long. 
  2.02, 
  lat. 
  2.04, 
  Ion. 
  .spir. 
  .78, 
  poll. 
  ; 
  div. 
  110°. 
  

  

  "Hab. 
  California. 
  Mus 
  Cuming. 
  

  

  "Syn. 
  Turbo 
  fluctiiatus, 
  var., 
  Rve. 
  Conch. 
  Ic. 
  pi. 
  VIII. 
  f. 
  34. 
  

  

  "Among 
  many 
  hundred 
  specimens 
  e.xamined 
  of 
  the 
  true 
  C. 
  fluctitatuin 
  from 
  the 
  Mazatlan 
  

   Collection, 
  there 
  was 
  not 
  one 
  approaching 
  this 
  shell. 
  Nevertheless, 
  as 
  there 
  is 
  in 
  the 
  British 
  

   Museum 
  a 
  somewhat 
  intermediate 
  form, 
  it 
  may 
  possibly 
  be 
  a 
  variety 
  of 
  that 
  species. 
  The 
  

   operculum 
  is 
  unfortunately 
  wanting 
  in 
  Mr. 
  C.'s 
  specimens 
  : 
  until 
  that 
  has 
  been 
  examined, 
  the 
  

   point 
  must 
  remain 
  in 
  abeyance." 
  [Carpenter, 
  1855, 
  p. 
  234] 
  

  

  This 
  form 
  has 
  not 
  been 
  noted 
  in 
  the 
  California 
  fauna 
  since 
  Carpenter 
  described 
  it 
  except 
  

   by 
  Pilsbry 
  (1888) 
  who 
  suggested 
  that 
  possibly 
  the 
  reference 
  in 
  Reeve 
  (1848) 
  should 
  have 
  

   been 
  Figure 
  3c, 
  of 
  Plate 
  IX. 
  

  

  The 
  specimen 
  figured 
  is 
  of 
  the 
  Carpenter 
  type 
  furnished 
  by 
  the 
  British 
  Museum 
  (Natural 
  

   History). 
  G. 
  L. 
  Wilkins 
  sent 
  to 
  the 
  writer 
  the 
  following 
  notes 
  which 
  are 
  the 
  label 
  with 
  the 
  

   shell: 
  "Callopoma? 
  fluctuatum 
  var. 
  dcpressum. 
  P.Z.S. 
  Calif. 
  Type. 
  Mus. 
  Cuming." 
  It 
  is 
  a 
  

   Nuttall 
  label. 
  

  

  Genus 
  Astraea 
  Roeding 
  in 
  Bolten, 
  1798 
  

  

  Astraca 
  Roeding 
  /;; 
  Boltex, 
  1798, 
  Mus. 
  Boltenianum, 
  pt. 
  2, 
  p. 
  79 
  

  

  Type 
  species 
  by 
  subsequent 
  designation, 
  Sutur, 
  1913, 
  Man. 
  New 
  Zealand 
  Moll., 
  p. 
  166 
  ; 
  

   Trochus 
  imperialis 
  Gmelix, 
  1791, 
  Syst. 
  Nat., 
  13 
  ed., 
  p. 
  3576; 
  = 
  Trochus 
  hcJ'wtrophim 
  

   AIartyx, 
  1784, 
  Univ. 
  Conch., 
  I, 
  p. 
  30. 
  Recent. 
  New 
  Zealand. 
  Sutur, 
  1913, 
  Man. 
  New 
  

   Zealand 
  Moll., 
  pi. 
  41, 
  fig. 
  1; 
  Powell, 
  1946, 
  The 
  Shellfish 
  of 
  New 
  Zealand, 
  2d 
  ed., 
  pi. 
  13, 
  

   fig. 
  7 
  

  

  Subgenus 
  Pomaulax 
  Gray 
  in 
  M. 
  E. 
  Gray, 
  1850 
  

  

  Pommdax 
  Gray, 
  J. 
  E., 
  in 
  Gray, 
  M. 
  E., 
  [dated 
  1859], 
  issued 
  1850, 
  Figures 
  of 
  Molluscous 
  

  

  Animals, 
  vol. 
  lY 
  , 
  p. 
  87 
  

   Type 
  species 
  by 
  subsequent 
  designation, 
  Herrjiannsex, 
  1852, 
  Indicies 
  Gen. 
  Malacoozorum, 
  

  

  Suppl., 
  p. 
  Ill, 
  Trochus 
  japoniciis 
  Dunker, 
  Philippi, 
  1845, 
  (1844) 
  Abbild. 
  Beschrieb., 
  I, 
  

  

  8, 
  p. 
  187, 
  pi. 
  5, 
  fig. 
  1. 
  Recent. 
  Japan. 
  Pilsbry, 
  1888, 
  Man. 
  Conch., 
  vol. 
  X, 
  pi. 
  58, 
  figs. 
  63, 
  

  

  64; 
  Hirase, 
  1936, 
  Japanese 
  Shells, 
  pi. 
  74, 
  fig. 
  11 
  

  

  The 
  first 
  type 
  designation 
  was 
  Herrmannsen. 
  His 
  statement 
  supersedes 
  that 
  of 
  Cossmann, 
  

   1918,62 
  ^vho 
  used 
  the 
  same 
  species, 
  T. 
  japonicus 
  Dunker. 
  

  

  P. 
  nndosus 
  [Wood] 
  and 
  P. 
  inponicus 
  [Dunker] 
  are 
  the 
  two 
  species 
  included 
  in 
  the 
  orig- 
  

   inal 
  description. 
  

  

  Astraea 
  (Pomaulax) 
  undosa 
  (Wood) 
  young 
  

   (PI. 
  19, 
  figs. 
  16, 
  17) 
  

  

  (? 
  hnpcrator 
  scrratus 
  Carpenter) 
  

  

  Trochus 
  undosus 
  Wood, 
  1828, 
  Index 
  Test., 
  Suppl., 
  p. 
  16, 
  pi. 
  5, 
  fig. 
  la 
  Pilsbry, 
  1888, 
  Man. 
  

  

  Conch., 
  vol. 
  X, 
  p. 
  243, 
  289 
  

   ? 
  hnpcrator 
  serratus 
  Carpexter, 
  1864h, 
  p. 
  612, 
  652; 
  Reprint, 
  1872, 
  p. 
  98, 
  138 
  

  

  " 
  ? 
  inipcraior 
  scrratus, 
  ?? 
  n.s. 
  Monterey; 
  Cat. 
  Is., 
  10-20 
  fm. 
  [Dr. 
  Cooper 
  thinks 
  this 
  

   shell 
  probably 
  the 
  young 
  of 
  Pomaulax.]" 
  [Carpenter, 
  1864b. 
  p. 
  612] 
  

  

  ". 
  . 
  . 
  Small, 
  finelv 
  sculptured, 
  base 
  stellate, 
  nucleus 
  Planorboid 
  : 
  operc. 
  flat, 
  with 
  more 
  

   whirls. 
  10-20 
  fm. 
  = 
  266 
  or 
  267 
  jun. 
  teste 
  Cp." 
  [Carpenter, 
  1864b, 
  p. 
  652] 
  

  

  The 
  holotype 
  of 
  the 
  Carpenter 
  name 
  is 
  in 
  the 
  U. 
  S. 
  National 
  Museum, 
  no. 
  11832. 
  It 
  has 
  

   the 
  label, 
  "Catalina 
  Cooper." 
  There 
  is 
  a 
  note 
  in 
  Dall's 
  handwriting 
  = 
  "Turbo 
  flucfuosus 
  

   junior" 
  with 
  the 
  specimen. 
  The 
  specimen 
  is 
  not 
  the 
  same 
  nor 
  is 
  it 
  related 
  to 
  that 
  form 
  of 
  

   the 
  reference 
  in 
  Dall 
  (1909, 
  p. 
  238) 
  to 
  "Wood, 
  Index 
  Test., 
  Suppl., 
  1828, 
  pi. 
  6, 
  fig. 
  44." 
  

   Carpenter, 
  as 
  well 
  as 
  Cooper, 
  thought 
  that 
  the 
  specimen 
  might 
  be 
  the 
  young 
  of 
  "Poniaulajv 
  

   undosiis 
  Wood" 
  or 
  Pachypoma 
  gibberosnm 
  Chem. 
  nos. 
  266 
  or 
  267 
  of 
  Carpenter 
  (1864b, 
  

   p. 
  652). 
  This 
  interpretation 
  seems 
  to 
  be 
  correct. 
  The 
  identity 
  may 
  be 
  verified 
  by 
  comparing 
  

  

  62 
  Used 
  by 
  Woodring 
  (1938, 
  p. 
  22, 
  footnote). 
  

  

  