﻿AMPITINEURA 
  279 
  

  

  gave 
  a 
  new 
  designation 
  (C. 
  crassicostatus) 
  to 
  the 
  chiton 
  whicli 
  would 
  liave 
  been 
  described 
  

   by 
  Carpenter. 
  Pilsbry 
  did 
  not 
  believe 
  that 
  the 
  use 
  of 
  the 
  name 
  by 
  Cooper 
  applied 
  to 
  the 
  

   same 
  form. 
  The 
  specific 
  name 
  was 
  used 
  for 
  a 
  chiton 
  by 
  Sowerby 
  (1840). 
  

  

  The 
  name 
  is 
  thus 
  best 
  dropped 
  from 
  literature 
  of 
  chitons. 
  

  

  References 
  to 
  name 
  : 
  

  

  "Callochiton 
  fimbriatus 
  Cpr. 
  (AISS.)," 
  Cooper, 
  1867, 
  Geog. 
  Cat. 
  Moll., 
  Geol. 
  Sur. 
  California, 
  

  

  p. 
  23 
  nomen 
  nudum. 
  Not 
  Chiton 
  fimbriatus 
  Sowerby, 
  1840 
  

   "Chiton 
  (Callochiton) 
  fimbriatus 
  Cpr.," 
  Dall 
  in 
  Orcutt, 
  1886, 
  U. 
  S. 
  Nat. 
  AIus., 
  Proc, 
  

  

  vol. 
  8, 
  p. 
  544; 
  Orcutt, 
  1915, 
  Moll. 
  World, 
  p. 
  23 
  nomcn 
  nudum 
  

   "Callistochiton 
  fimbriatus 
  Cpr. 
  MSS. 
  1875," 
  Pilsbry, 
  1892, 
  Man. 
  Conch., 
  vol. 
  XIV, 
  p. 
  265 
  

  

  = 
  C. 
  crassicostatus 
  Pilsbry, 
  1892. 
  Not 
  C. 
  fimbriatus 
  Cpr. 
  Cooper, 
  see 
  above 
  fide 
  Pilsbry, 
  

  

  1892 
  

   Chiton 
  fimbriatus 
  of 
  authors. 
  Berry, 
  1922, 
  California 
  Acad. 
  Sci., 
  Proc., 
  ser. 
  4, 
  vol. 
  XI, 
  no. 
  18, 
  

  

  p. 
  484 
  = 
  Callistochiton 
  crassicostatus 
  Pilsbry, 
  1892 
  

  

  Callistochiton 
  palmulatus 
  Carpenter 
  in 
  Pilsbry 
  

   (PL 
  32, 
  fig. 
  1) 
  

  

  Callistochiton 
  palmulatus 
  Carpenter 
  ms. 
  in 
  Pilsbry, 
  1892, 
  Alan. 
  Conch., 
  vol. 
  XIV, 
  p. 
  262, 
  

   pi. 
  58, 
  figs. 
  12-16 
  typical; 
  Dall, 
  1921, 
  p. 
  193; 
  Oldroyd, 
  1927, 
  vol. 
  II, 
  pt. 
  Ill, 
  p. 
  292; 
  

   BuRCH, 
  1947, 
  no. 
  66, 
  p. 
  18; 
  Smith 
  and 
  Gordon, 
  1948, 
  California 
  Acad. 
  Sci., 
  Proc., 
  

   ser. 
  4, 
  vol. 
  XXVI, 
  p. 
  208 
  

  

  Pilsbry 
  utilized 
  Carpenter's 
  manuscript 
  name, 
  description, 
  and 
  drawings. 
  Part 
  of 
  the 
  

   figures 
  under 
  the 
  species 
  (pi. 
  58, 
  figs. 
  7-11) 
  Pilsbry 
  segregated 
  under 
  a 
  subspecific 
  name, 
  

   mirabilis 
  Pilsbry. 
  The 
  holotype 
  of 
  the 
  subspecies 
  is 
  in 
  the 
  Academy 
  of 
  Natural 
  Sciences, 
  

   Philadelphia. 
  

  

  One 
  specimen 
  in 
  the 
  Carpenter 
  Collection 
  in 
  the 
  Redpath 
  Museum 
  is 
  on 
  an 
  original 
  

   Carpenter 
  glass 
  mount 
  wath 
  original 
  label, 
  "type 
  Sta. 
  Barbara 
  Cooper 
  no. 
  1077." 
  The 
  

   number 
  and 
  locality 
  corresponds 
  with 
  that 
  given 
  for 
  the 
  type 
  by 
  Pilsbry 
  (1892, 
  p. 
  263), 
  

   which 
  verifies 
  the 
  specimen 
  as 
  type. 
  An 
  illustration 
  of 
  the 
  holotype 
  is 
  figured 
  herein. 
  The 
  

   specimen 
  was 
  mounted 
  with 
  four 
  plates 
  separate. 
  

  

  Holotype. 
  — 
  Redpath 
  Museum, 
  no. 
  48 
  

  

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

   Ignacio 
  Lagoon, 
  Lower 
  California 
  (Dall). 
  Pleistocene. 
  California 
  (Berry, 
  1922, 
  p. 
  407) 
  

  

  Family 
  Chitonidae 
  

   Genus 
  Placiphorella 
  Dall, 
  1879 
  

  

  Placiphorella 
  Dall, 
  1879, 
  U. 
  S. 
  Nat. 
  Mus., 
  Proc, 
  vol. 
  1, 
  p. 
  298, 
  303, 
  306 
  

   Type 
  species 
  by 
  original 
  designation, 
  P. 
  velata 
  "Cpr," 
  Dall, 
  1879, 
  U. 
  S. 
  Nat. 
  Mus., 
  Proc, 
  

   vol. 
  I, 
  pi. 
  IV, 
  figs. 
  36, 
  36a 
  dentition. 
  Recent. 
  Vancouver 
  Island, 
  British 
  Columbia, 
  to 
  

   Todos 
  Santos 
  Bay, 
  California. 
  Pilsbry, 
  1892, 
  Man. 
  Conch., 
  vol. 
  XIV, 
  pi. 
  66, 
  figs. 
  6-12 
  

  

  Placiphorella 
  velata 
  Dall 
  

  

  Placiphorella 
  velata 
  Carpenter 
  ms., 
  Dall, 
  1879, 
  U. 
  S. 
  Nat. 
  Mus., 
  Proc, 
  vol. 
  I, 
  p. 
  208, 
  303, 
  

   307, 
  pi. 
  IV, 
  fig. 
  36a 
  dentition; 
  1887, 
  U. 
  S. 
  Nat. 
  Mus., 
  Proc, 
  vol. 
  9, 
  p. 
  210; 
  Pilsbry, 
  1892, 
  

   Man. 
  Conch., 
  vol. 
  XIV, 
  p. 
  306, 
  pi. 
  66, 
  figs. 
  6-12; 
  Berry, 
  1917, 
  California 
  Acad. 
  Sci., 
  

   Proc, 
  ser. 
  4, 
  vol. 
  VII, 
  no. 
  10, 
  p. 
  241; 
  Dall, 
  1921, 
  p. 
  196 
  Carpenter; 
  Berry, 
  1922, 
  Cali- 
  

   fornia 
  Acad. 
  Sci. 
  Proc, 
  ser. 
  4, 
  vol. 
  XI, 
  no. 
  18, 
  p. 
  453, 
  pi. 
  Ill, 
  figs. 
  13-15; 
  Oldroyd, 
  1924, 
  

   Pub. 
  Puget 
  Sound 
  Biol. 
  Station, 
  vol. 
  4, 
  p. 
  199; 
  1927, 
  vol. 
  II, 
  pt. 
  Ill, 
  p. 
  315; 
  Burch. 
  1947. 
  

   no 
  66, 
  p. 
  19 
  ; 
  Smith 
  and 
  Gordon, 
  1948, 
  California 
  Acad. 
  Sci., 
  Proc, 
  ser. 
  4, 
  vol. 
  XXVI, 
  

   p. 
  206; 
  Berry, 
  1951, 
  Mai. 
  Soc. 
  London, 
  Proc, 
  vol. 
  28, 
  pt. 
  6, 
  p. 
  214, 
  215, 
  221 
  

  

  The 
  specific 
  name 
  should 
  not 
  be 
  credited 
  to 
  Carpenter, 
  as 
  only 
  Carpenter's 
  manuscript 
  

   name 
  was 
  utilized 
  by 
  Dall 
  and 
  by 
  Pilsbry. 
  Dall 
  described 
  the 
  soft 
  anatomy 
  of 
  the 
  animal, 
  

   and 
  Pilsbry 
  later 
  (1892) 
  described 
  the 
  shell. 
  Dall, 
  therefore, 
  has 
  priority 
  of 
  naming. 
  Refer- 
  

   ence 
  to 
  the 
  species 
  is 
  included 
  here 
  for 
  the 
  record 
  in 
  regard 
  to 
  names 
  in 
  connection 
  with 
  

   Carpenter's 
  work. 
  

  

  