﻿222 
  ^rARlXE 
  ^tOLLUSCA 
  DESCRTBF.n 
  BY 
  P. 
  P. 
  CARPENTER 
  

  

  Cystiscus 
  regularis 
  (Carpenter) 
  

   (PI. 
  24, 
  figs. 
  9-12) 
  

  

  Margiuclla 
  regularis 
  Carpenter, 
  1864b, 
  p. 
  537, 
  661; 
  Reprint, 
  1872, 
  p. 
  23, 
  147; 
  1865, 
  Ann 
  

   Mag. 
  Nat. 
  Hist., 
  scr. 
  3, 
  vol. 
  XV, 
  p. 
  398; 
  Reprint, 
  1872, 
  p. 
  287; 
  Cooper, 
  1867, 
  Geog. 
  Cat 
  

   Moll., 
  Geol. 
  Sur. 
  California, 
  p. 
  36; 
  1870, 
  Amer. 
  Jour. 
  Conch., 
  vol. 
  VI, 
  p. 
  68; 
  Tryon 
  

   1883, 
  Man. 
  Conch., 
  vol. 
  V, 
  p. 
  43, 
  pi. 
  12, 
  fig. 
  56; 
  Iveep, 
  1887, 
  West 
  Coast 
  Shells, 
  p. 
  43 
  

   Williamson, 
  1892, 
  U. 
  S. 
  Nat. 
  Mus., 
  Proc., 
  vol. 
  15, 
  no. 
  898, 
  p. 
  212; 
  Dall, 
  1921, 
  p. 
  85 
  

   Oldroyd, 
  1927, 
  vol. 
  II, 
  pt. 
  1, 
  p. 
  164; 
  Baily, 
  1935, 
  West 
  Coast 
  Shells 
  (Keep), 
  p. 
  222 
  

   Keen, 
  1937, 
  p. 
  39; 
  Smith 
  a.nd 
  Gordon, 
  1948, 
  California 
  Acad. 
  Sci., 
  Proc, 
  ser. 
  4, 
  vol 
  

   XXVI, 
  p. 
  185 
  

  

  Hyalina 
  (Cystbcus) 
  regularis 
  (Carpenter), 
  Grant 
  and 
  Gale, 
  1931, 
  p. 
  631 
  

  

  Cystiscus 
  regularis 
  (Carpenter), 
  Burch, 
  1945, 
  no. 
  49, 
  p. 
  24, 
  26 
  

  

  Persicida 
  (Gibberula) 
  regularis 
  (Carpenter), 
  Abbott, 
  1954, 
  p. 
  258 
  

  

  "Between 
  Jczvettii 
  and 
  minor, 
  C. 
  B. 
  Ad. 
  Maz. 
  Cat. 
  no. 
  587. 
  Beach 
  — 
  20 
  fm. 
  Cp." 
  [Car- 
  

   penter, 
  1864b, 
  p. 
  661] 
  

  

  Oldroj'd 
  (1927) 
  published 
  a 
  copy 
  of 
  Carpenter's 
  (1865) 
  description. 
  The 
  following 
  

   should 
  be 
  changed 
  in 
  her 
  copy 
  : 
  

   Add: 
  

  

  ". 
  . 
  . 
  div. 
  120°. 
  

  

  Delete 
  "poll." 
  

  

  "Hah. 
  Sta. 
  Barbara 
  (Jcwett) 
  ; 
  coast 
  of 
  California 
  south 
  from 
  Monterey, 
  beach 
  to 
  20 
  

   fathoms; 
  Catalina 
  Island, 
  10-20 
  fathoms. 
  State 
  Coll. 
  no. 
  398a 
  {Cooper)." 
  [Carpenter, 
  

   1865h, 
  p. 
  398] 
  

  

  Specimens 
  marked 
  type 
  of 
  tliis 
  species 
  have 
  been 
  found 
  in 
  the 
  Redpath 
  Museum, 
  McGill 
  

   University, 
  and 
  the 
  U. 
  S. 
  National 
  Museum. 
  Those 
  at 
  McGill 
  were 
  labelled 
  by 
  Carpenter 
  

   "type" 
  S. 
  Diego 
  Monterey," 
  and 
  there 
  are 
  six 
  specimens. 
  

  

  The 
  specimens 
  at 
  the 
  U. 
  S. 
  National 
  Museum 
  is 
  labelled 
  "type 
  Cpr. 
  [Cp.] 
  398 
  Sta. 
  

   Barbara 
  Jewctt." 
  This 
  specimen 
  represents 
  the 
  first 
  mentioned 
  of 
  the 
  seven 
  syntypes 
  avail- 
  

   able. 
  The 
  locality 
  of 
  this 
  shell 
  is 
  definite, 
  whereas 
  that 
  of 
  the 
  AicGill 
  specimens 
  is 
  not. 
  The 
  

   writer 
  therefore 
  selects 
  the 
  U. 
  S. 
  National 
  Museum 
  specimen, 
  no. 
  55391 
  (pi. 
  24, 
  figs. 
  11, 
  

   12,) 
  as 
  the 
  lectotype. 
  This 
  makes 
  Santa 
  Barbara 
  the 
  type 
  locality. 
  

  

  The 
  reference 
  in 
  Oldroyd 
  and 
  others 
  to 
  the 
  type 
  depository 
  as 
  the 
  Britisli 
  Museum 
  is 
  

   incorrect. 
  

  

  There 
  is 
  probably 
  a 
  finer 
  sixth 
  plication 
  on 
  the 
  columella 
  tlian 
  is 
  conspicuous 
  in 
  the 
  

   photographs. 
  

  

  Tv/TJ-.^Lectotypes, 
  U. 
  S. 
  National 
  Museum, 
  no. 
  55391 
  ; 
  paratypes 
  (6), 
  Redpath 
  Museum, 
  

   no. 
  82 
  

  

  Distribution. 
  — 
  Recent. 
  Santa 
  Barbara, 
  California 
  (type). 
  Pleistocene. 
  California 
  (Grant 
  

   and 
  Gale) 
  Mexico 
  (Jordan, 
  1926) 
  

  

  Cystiscus 
  subtrigona 
  (Carpenter) 
  

   (PI. 
  26, 
  figs. 
  3-4) 
  

  

  Maniinclla 
  .uihtrigona 
  Carpenter, 
  1864b, 
  p. 
  537, 
  661; 
  Reprint, 
  1872, 
  p. 
  23, 
  147; 
  1865, 
  Ann. 
  

  

  Mag. 
  Nat. 
  Hist., 
  ser. 
  3, 
  vol. 
  XV, 
  p. 
  397; 
  Reprint, 
  1872, 
  p. 
  287; 
  Cooper, 
  1867, 
  Geog. 
  Cat. 
  

  

  Moll., 
  Geol. 
  Sur. 
  California, 
  p. 
  36; 
  Tryon, 
  1883, 
  Man. 
  Conch., 
  vol. 
  V, 
  p. 
  43, 
  pi. 
  12, 
  fig. 
  55 
  ; 
  

  

  Keep, 
  1887, 
  West 
  Coast 
  Shells, 
  p. 
  43; 
  Dai.l, 
  1921, 
  p. 
  85; 
  Oldroyd, 
  1927, 
  vol. 
  II, 
  pt. 
  I, 
  

  

  p. 
  164; 
  Raily, 
  1935, 
  West 
  Coast 
  Shells 
  (Keep), 
  p. 
  222; 
  Keen, 
  1937, 
  p. 
  39 
  

   Hyalina 
  {Cystiscu.<!) 
  subtrigona 
  (Carpenter), 
  Grant 
  .\nd 
  Gale, 
  1931, 
  p. 
  631 
  

   Cystiscus 
  subtrigona 
  (Carpenter), 
  Burcu, 
  1945, 
  no. 
  49, 
  p. 
  24, 
  26 
  

   Persicula 
  {Gibberula) 
  subtrigona 
  (Carpenter), 
  Abbott, 
  1954, 
  p. 
  258 
  

  

  "Sliape 
  of 
  Erato 
  columbella." 
  [Carpenter, 
  1864b, 
  p. 
  661] 
  

  

  Oldroyd 
  (1927) 
  published 
  a 
  copy 
  of 
  Carpenter's 
  description 
  (1865). 
  Tiie 
  following 
  cor- 
  

   rections 
  should 
  be 
  made 
  in 
  her 
  copy 
  : 
  

  

  Line 
  1 
  : 
  add 
  "latiore" 
  between 
  "curtiore" 
  and 
  the 
  .semicolon 
  ; 
  correct 
  "parientali" 
  to 
  

   "parietali" 
  ; 
  add 
  at 
  the 
  end, 
  "div. 
  130°. 
  Hab. 
  Sta. 
  Barbara 
  {Jezuett)." 
  Delete 
  "poll." 
  

  

  The 
  holotype 
  and 
  "paratype" 
  of 
  this 
  species 
  are 
  in 
  the 
  Carpenter 
  Collection 
  in 
  the 
  Red- 
  

   path 
  Museum 
  intact 
  on 
  the 
  Carpenter 
  original 
  mount, 
  with 
  the 
  original 
  label, 
  "Gibberula 
  

  

  