﻿GASTROPODA 
  237 
  

  

  Mitromorpha 
  filosa 
  (Carpenter) 
  

   (PI. 
  25, 
  figs. 
  5, 
  6) 
  

  

  ? 
  Daphnella 
  filosa 
  Carpenter, 
  1864b, 
  p. 
  658; 
  Reprint, 
  1872, 
  p. 
  144; 
  Tryon, 
  1884, 
  Man. 
  

   Conch., 
  vol. 
  VI, 
  p. 
  317, 
  pi. 
  25, 
  fig. 
  63 
  poor 
  

  

  Mitromorpfm 
  filosa 
  Carpenter, 
  1865, 
  Ann. 
  Mag. 
  Nat. 
  Hist., 
  ser. 
  3, 
  vol. 
  XV, 
  p. 
  182; 
  Re- 
  

   print, 
  1872, 
  p. 
  284; 
  Cooper, 
  1867, 
  Geog. 
  Cat. 
  Moll., 
  Geol. 
  Sur. 
  California, 
  p. 
  ZZ; 
  1870, 
  

   Amer. 
  Jour. 
  Conch., 
  vol. 
  VI, 
  p. 
  66; 
  Keep, 
  1887, 
  West 
  Coast 
  Shells, 
  p. 
  55; 
  Williamson, 
  

   1892, 
  U. 
  S. 
  Nat. 
  Mus., 
  Proc, 
  vol. 
  15, 
  p. 
  208, 
  pi. 
  XIX, 
  fig. 
  1; 
  Pace, 
  1902, 
  Malacol. 
  Soc. 
  

   London, 
  Proc, 
  vol. 
  5, 
  p. 
  83 
  Columbellidae 
  ; 
  Arnold, 
  1903, 
  p. 
  223; 
  Dall, 
  1921, 
  p. 
  87; 
  

   Oldroyd, 
  1927, 
  p. 
  173; 
  Baily, 
  1935, 
  West 
  Coast 
  Shells 
  (Keep), 
  p. 
  264, 
  fig. 
  282; 
  Keen, 
  

   1937, 
  p. 
  41 
  ; 
  BuRCH, 
  1945, 
  no. 
  49, 
  p. 
  22); 
  Smith 
  and 
  Gordon, 
  1948, 
  California 
  Acad. 
  Sci., 
  

   Proc., 
  ser. 
  4, 
  vol. 
  XXVI, 
  p. 
  185; 
  Abbott, 
  1954, 
  p. 
  273, 
  fig. 
  571 
  same 
  figure 
  as 
  William- 
  

   son, 
  1892 
  

  

  Maiigclia 
  (Rfttromorpha) 
  filosa 
  (Carpenter), 
  Grant 
  and 
  Gale, 
  1931, 
  p. 
  596 
  

  

  "t 
  Small, 
  diamond-shaped, 
  but 
  rounded 
  periphery; 
  spirally 
  threaded. 
  [Carpenter, 
  1864b, 
  

   p. 
  658] 
  

  

  "t 
  Generic 
  position 
  of 
  all 
  these 
  doubtful 
  : 
  perhaps 
  they 
  belong 
  to 
  genera 
  not 
  yet 
  elimi- 
  

   nated 
  : 
  filosa 
  resembling 
  the 
  Eocene 
  forms 
  between 
  Conus 
  and 
  Plenrotoma." 
  

  

  Oldroyd 
  republished 
  the 
  Carpenter's 
  description 
  (1865) 
  in 
  her 
  monograph 
  (1927). 
  The 
  

   following 
  changes 
  should 
  be 
  made 
  in 
  her 
  copy 
  : 
  

   Delete 
  "poll." 
  

  

  Add 
  : 
  

  

  ". 
  . 
  . 
  div. 
  45°. 
  

  

  "Hab. 
  Sta. 
  Barbara 
  (Jewett) 
  ; 
  Lower 
  California 
  (teste 
  Trick 
  [Frickf] 
  in 
  Mus. 
  Cuming.). 
  

  

  ' 
  — 
  ? 
  Daphnella 
  filosa, 
  Brit. 
  Assoc. 
  Rep. 
  1863, 
  p. 
  658, 
  note 
  +. 
  

  

  "Mr. 
  A. 
  Adams 
  obtained 
  two 
  similar 
  species 
  from 
  Japan 
  ; 
  and 
  as 
  the 
  shells 
  do 
  not 
  rank 
  

   satisfactorily 
  under 
  any 
  established 
  group, 
  he 
  proposes 
  the 
  above 
  genus 
  for 
  their 
  reception. 
  

   M. 
  Crosse 
  suggests 
  that 
  Columbclla 
  dormitor, 
  Sby., 
  may 
  be 
  congeneric." 
  [Carpenter, 
  1865h, 
  

   p. 
  182] 
  

  

  The 
  holotype 
  of 
  this 
  species 
  is 
  in 
  the 
  Redpath 
  Museum 
  at 
  McGill 
  University, 
  on 
  an 
  

   original 
  Carpenter 
  mount 
  with 
  a 
  Carpenter 
  label, 
  "type 
  Sta. 
  Barbara 
  Jewett." 
  It 
  is 
  dark 
  

   red, 
  the 
  protoconch 
  has 
  about 
  two 
  smooth 
  whorls, 
  about 
  four 
  of 
  the 
  coarse 
  spiral 
  ribs 
  are 
  

   on 
  the 
  whorls 
  of 
  the 
  spire, 
  and 
  the 
  columella 
  is 
  smooth. 
  

  

  The 
  statement 
  in 
  Oldroyd 
  and 
  others 
  that 
  the 
  type 
  is 
  in 
  the 
  British 
  IMuseum 
  is 
  incorrect. 
  

  

  Grant 
  and 
  Gale 
  have 
  described 
  well 
  the 
  shell 
  of 
  this 
  species. 
  ^^^^ 
  

  

  Holotype. 
  — 
  Redpath 
  Museum, 
  no. 
  96 
  

  

  Distribution. 
  — 
  Recent. 
  Santa 
  Barbara, 
  California 
  (type) 
  ; 
  Monterey, 
  California, 
  to 
  Gulf 
  

   of 
  California 
  (Dall). 
  Pleistocene. 
  California 
  (.Arnold; 
  Oldroyd, 
  1925; 
  Grant 
  and 
  Gale); 
  

   Mexico 
  (Jordan, 
  1926) 
  

  

  "Mitromorpha 
  gracilis 
  Carpenter" 
  

  

  "Mitromorpha 
  gracilis 
  Carpenter" 
  in 
  Arnold 
  (1903, 
  p. 
  223). 
  copied 
  by 
  Oldroyd 
  (1927, 
  

   vol. 
  II, 
  pt. 
  i, 
  p. 
  173) 
  is 
  apparently 
  an 
  error 
  either 
  in 
  spelling 
  or 
  confusion 
  of 
  names. 
  

   Arnold 
  may 
  have 
  meant 
  M. 
  gracilior 
  of 
  Hemphill 
  in 
  Tryon 
  (1884). 
  However, 
  that 
  

   species 
  was 
  not 
  described 
  until 
  1884 
  whicli 
  was 
  19 
  years 
  after 
  the 
  introduction 
  of 
  

   Mitromorpha 
  Adams 
  in 
  Carpenter 
  (1865), 
  with 
  which 
  Arnold 
  associated 
  the 
  specific 
  

   name 
  as 
  the 
  type 
  species. 
  

  

  Family 
  Acteonidae 
  

  

  Genus 
  Acteon 
  Montfort, 
  1810 
  

  

  (Tornatella 
  Lamarck, 
  1822) 
  

  

  Tornatella 
  Montfort, 
  1810, 
  Conchyliol. 
  Syst., 
  t. 
  2, 
  p. 
  315 
  

  

  Type 
  species 
  by 
  original 
  designation, 
  A. 
  tornatilis 
  (Gmelin) 
  = 
  Voluta 
  tornatilis 
  Linnaeus, 
  

   1767, 
  Syst. 
  Nat., 
  12th 
  ed., 
  p. 
  1187; 
  Gmelin, 
  1791, 
  Syst. 
  Nat., 
  p. 
  3437. 
  Recent. 
  Western 
  

  

  1^9 
  Their 
  description 
  is 
  not 
  a 
  complete 
  English 
  translation 
  of 
  Carpenter's 
  description 
  

   (1865), 
  as 
  stated 
  by 
  Burch 
  (1945, 
  no. 
  49, 
  p. 
  ?>?>). 
  Their 
  description 
  appears 
  to 
  have 
  been 
  

   based 
  on 
  specimens. 
  The 
  shells 
  which 
  they 
  measured 
  were 
  larger 
  than 
  the 
  figures 
  by 
  

   Carpenter. 
  

  

  