﻿2S2 
  MARINE 
  MOLLUSCA 
  DESCRTBED 
  BY 
  P. 
  P. 
  CARPENTER 
  

  

  simpsonii 
  Grey 
  Monterey." 
  Tlie 
  front 
  of 
  the 
  table 
  has 
  "Vancouver 
  Is." 
  as 
  the 
  locahty 
  (G. 
  L. 
  

   Wilkins, 
  Sept. 
  7, 
  1951, 
  personal 
  communication). 
  

  

  "C.t. 
  ovata, 
  subelevata 
  (ad 
  angulum 
  120°), 
  sublaevi 
  ; 
  olivacea, 
  valva 
  utraque 
  ad 
  jugum 
  

   rubro-fusco 
  maculate, 
  lineis 
  tenebrosioribus 
  valvis 
  intermediis 
  subradiantibus, 
  valvis 
  ultimis 
  

   radiantibus 
  ; 
  valvis 
  intermediis 
  lineis 
  diagonalibus 
  subdistinctis, 
  ad 
  marginem 
  subquadratis, 
  

   suturis 
  conspicuis 
  ; 
  areis 
  lateralibus 
  lineis 
  paucis 
  radiantibus 
  obsoletis; 
  tota 
  superficie 
  

   punctulis 
  creberrimis 
  conferta, 
  subobsoletis, 
  niaxime 
  ad 
  areas 
  lateralcs 
  ; 
  mucrone 
  vix 
  

   prominente 
  ; 
  limbo 
  coriaceo, 
  ad 
  marginem 
  et 
  in 
  suturis 
  piloso, 
  setis 
  planatis 
  curtis, 
  incurvatis 
  ; 
  

   intus 
  valvarum 
  marginibus 
  baud 
  valde 
  arcuatis, 
  sinu 
  parvo, 
  ad 
  jugum 
  subimpresso. 
  

  

  "Long. 
  2.4, 
  lat. 
  1.42, 
  alt. 
  .45 
  poll. 
  

  

  "Hab. 
  Monterey, 
  rupibus 
  ad 
  undarum 
  tumultum 
  exix)sitis 
  : 
  legit 
  — 
  Hartvveg. 
  Alus. 
  Cuming. 
  

  

  "Margin 
  with 
  numerous 
  but 
  not 
  crowded, 
  short, 
  incurved, 
  horny, 
  flattened 
  hairs 
  ; 
  shell 
  

   very 
  finely 
  sculptured, 
  dark 
  olive, 
  with 
  very 
  dark 
  rays 
  slightly 
  diverging 
  from 
  the 
  summit 
  

   of 
  each 
  valve, 
  ajid 
  very 
  conspicuous 
  on 
  the 
  terminal 
  one. 
  The 
  jugum 
  is 
  stained 
  in 
  each 
  valve 
  

   with 
  sienna." 
  [Carpenter, 
  1855, 
  p. 
  231] 
  

  

  Through 
  the 
  courtesy 
  of 
  the 
  authorities 
  of 
  the 
  British 
  Museum 
  (Natural 
  History) 
  a 
  

   photograph 
  of 
  the 
  type 
  of 
  C. 
  viontcrcycnsis 
  Carpenter 
  is 
  included. 
  

  

  The 
  synonymy 
  of 
  M. 
  lignosa 
  is 
  not 
  intended 
  to 
  be 
  complete. 
  

  

  Hototype. 
  — 
  British 
  Museum 
  (Natural 
  History), 
  no. 
  1951. 
  9.7.1-5 
  

  

  Distribution. 
  — 
  Recent. 
  Monterey, 
  California 
  (type 
  of 
  M. 
  montereyensis) 
  . 
  For 
  complete 
  

   distribution 
  see 
  tliat 
  of 
  .1/. 
  lignosa. 
  Pleistocene. 
  (Berry; 
  Chace 
  and 
  Chace) 
  

  

  Mopalia 
  muscosa 
  Gould 
  

  

  "Chiton 
  ornatus 
  Nutt. 
  MS." 
  Carpenter 
  

  

  Mopalia 
  muscosa 
  Gould, 
  1846, 
  July, 
  Boston 
  Soc. 
  Nat. 
  Hist., 
  Proc, 
  vol. 
  II, 
  p. 
  145; 
  1852, 
  

  

  U. 
  S. 
  Expl. 
  Expcd., 
  Moll., 
  vol. 
  XII, 
  p. 
  313, 
  Atlas 
  (1856), 
  pi. 
  28, 
  fig. 
  436 
  

   Chiton 
  ornatus 
  Nutt. 
  ms. 
  Carpenter, 
  1855, 
  Zool. 
  Soc. 
  London, 
  Proc. 
  pt. 
  XXIII, 
  p. 
  232; 
  

  

  1856, 
  Zool. 
  Soc. 
  London, 
  Proc, 
  pt. 
  XXIV, 
  p. 
  221 
  ; 
  1857, 
  Kept. 
  British 
  Assoc. 
  Adv. 
  Sci. 
  

  

  1856, 
  p. 
  198, 
  229, 
  318, 
  349; 
  1860, 
  Smith. 
  Misc. 
  Coll., 
  vol. 
  2, 
  art. 
  6, 
  p. 
  3 
  ; 
  1864b, 
  p. 
  530; 
  

  

  Reprint, 
  1872, 
  p. 
  16; 
  Pilsbhv, 
  1892, 
  Man. 
  Conch., 
  vol. 
  XIV, 
  p. 
  295 
  as 
  M. 
  muscosa 
  Gould 
  

  

  Carpenter 
  used 
  Nuttall's 
  manuscript 
  name 
  of 
  C. 
  ornata 
  and 
  described 
  the 
  San 
  Diego 
  

   shell, 
  although 
  he 
  suspected 
  that 
  it 
  might 
  have 
  been 
  described 
  by 
  Gould. 
  Cari>enter 
  (1864b) 
  

   identified 
  the 
  Nuttall 
  specimen 
  as 
  conspecific 
  with 
  M. 
  muscosa 
  Gould. 
  

  

  Mopalia 
  muscosa 
  kennerleyi 
  Carpenter 
  

  

  Mopalia 
  grayii 
  Carpenter, 
  1864b, 
  p. 
  603, 
  648; 
  Reprint, 
  1872, 
  p. 
  89, 
  134 
  name 
  preoccupied 
  

  

  fide 
  Carpenter 
  

   Mopalia 
  Kennerleyi 
  Carpenter, 
  1864b, 
  p. 
  648; 
  Reprint 
  1872, 
  p. 
  134 
  new 
  name 
  for 
  M. 
  grayi 
  

  

  Carpenter, 
  p. 
  603; 
  1865, 
  Acad. 
  Nat. 
  Sci. 
  Philadelphia, 
  Proc, 
  vol. 
  17, 
  p. 
  59; 
  Cooper, 
  1867, 
  

  

  Geog. 
  Cat. 
  Moll., 
  Geol. 
  Sur. 
  California, 
  p. 
  21 
  ; 
  1871, 
  Amer. 
  Jour. 
  Conch., 
  vol. 
  VI, 
  p. 
  58 
  

   Mopalia 
  ciliata 
  Sowerby, 
  Pilsbry, 
  1892, 
  Man. 
  Conch., 
  vol. 
  XIV, 
  p. 
  303; 
  Berry, 
  1922, 
  

  

  California 
  Acad. 
  Sci., 
  Proc, 
  vol. 
  XI, 
  no. 
  18, 
  p. 
  449 
  in 
  part 
  

   Mopalia 
  muscosa 
  kennerleyi 
  Carpenter, 
  Dall, 
  1921, 
  p. 
  195 
  kennerlyi: 
  Oldroyd, 
  1924, 
  Pub. 
  

  

  Puget 
  Sound 
  Biol. 
  Station, 
  vol. 
  4, 
  p. 
  197 
  kennerlyi; 
  1927, 
  vol. 
  II, 
  pt. 
  Ill, 
  p. 
  306 
  kennerlyi; 
  

  

  BuRCH, 
  1927, 
  no. 
  66, 
  p. 
  19; 
  LaRocque, 
  1953, 
  Nat. 
  Mus. 
  Canada, 
  Bull. 
  129, 
  p. 
  15 
  kennerlyi 
  

  

  Oldroyd 
  (1927) 
  republished 
  the 
  original 
  description, 
  Carpenter's 
  Latin 
  descrijition 
  1865, 
  

   and 
  a 
  translation 
  of 
  the 
  latter. 
  

  

  There 
  are 
  specimens 
  with 
  labels 
  in 
  the 
  U. 
  S. 
  National 
  Museum 
  from 
  Neah 
  Bay 
  and 
  

   Vancouver 
  Island, 
  which 
  bear 
  Carpenter's 
  initial, 
  but 
  none 
  has 
  a 
  notation 
  that 
  it 
  is 
  type 
  

   material. 
  

  

  Holotype. 
  — 
  Not 
  found 
  

  

  Distribution. 
  — 
  Puget 
  Sound, 
  Washington 
  (type) 
  ; 
  Shumagin 
  Island, 
  Alaska, 
  to 
  Monterey, 
  

   California 
  (Dall) 
  

  

  Mopalia 
  sinuata 
  Carpenter 
  

   (PI. 
  33, 
  figs. 
  6-13) 
  

  

  Mopalia 
  sinuata 
  Carpenter, 
  1864b, 
  p. 
  603, 
  648 
  genus?; 
  Reprint, 
  1872, 
  p. 
  89, 
  134; 
  1865, 
  Acad. 
  

   Nat. 
  Sci. 
  Philadelphia, 
  Proc, 
  vol. 
  17, 
  p. 
  59; 
  Cooper, 
  1867, 
  Geog. 
  Cat. 
  Moll., 
  Geol. 
  Sur. 
  

  

  