﻿94 
  MARINE 
  MOLLUSCA 
  DESCRIBED 
  BY 
  P. 
  P. 
  CARPENTER 
  

  

  dementia 
  {Comfsomyax) 
  suhdiaphmw 
  (Carpenter), 
  Grant 
  and 
  Gale, 
  1931, 
  p. 
  334, 
  pi. 
  17, 
  

  

  figs. 
  10a, 
  10b, 
  ? 
  15, 
  see 
  for 
  additional 
  synonj-my 
  

   Compsomxa^ 
  suhdiaphmia 
  (Carpenter), 
  Keen, 
  1937, 
  p. 
  19; 
  Keen 
  and 
  Bentson, 
  1944, 
  

  

  Geol. 
  Soc. 
  Amer., 
  Sp. 
  Paper 
  no. 
  56, 
  p. 
  38, 
  105, 
  118; 
  Burch, 
  1944, 
  no. 
  42, 
  p. 
  11; 
  1945, 
  

  

  no. 
  45, 
  p. 
  15; 
  Hertlein 
  and 
  Strong, 
  1948, 
  Zoologica, 
  New 
  York 
  Zool. 
  Soc, 
  vol. 
  33, 
  

  

  pt. 
  IV, 
  p. 
  191 
  ; 
  Smith 
  and 
  Gordon, 
  1948, 
  California 
  Acad. 
  Sci., 
  Proc, 
  ser. 
  4, 
  vol. 
  XXVI, 
  

  

  p. 
  174; 
  Abbott, 
  1954, 
  p. 
  411, 
  pi. 
  31f 
  ; 
  fig. 
  81a, 
  b, 
  .same 
  figs, 
  as 
  Dale, 
  1892, 
  U. 
  S. 
  Nat. 
  Mus., 
  

  

  Proc., 
  vol. 
  14, 
  no. 
  849, 
  p. 
  185 
  

   Kathcrinella 
  (Covtpso)nyax) 
  aff. 
  K. 
  subdiapliana 
  (Carpenter), 
  Woodring, 
  1938, 
  U. 
  S. 
  

  

  Geol. 
  Sur., 
  Prof. 
  Paper 
  190, 
  p. 
  11, 
  54, 
  pi. 
  6, 
  fig. 
  12, 
  lower 
  Pliocene. 
  See 
  for 
  additional 
  

  

  references 
  for 
  fossil 
  occurrence 
  

   Kathcrinella 
  {Compsomyax) 
  subdiapliana 
  (Carpenter), 
  Woodring, 
  Bramlette, 
  and 
  Kew, 
  

  

  1946, 
  U. 
  S. 
  Geol. 
  Sur., 
  Prof. 
  Paper 
  207, 
  p. 
  84. 
  90, 
  93, 
  pi. 
  33, 
  fig. 
  7-9. 
  Pleistocene. 
  Palos 
  

  

  Verdes 
  Hill, 
  California 
  

  

  "Clementin 
  subdiapliana, 
  n.s. 
  Very 
  rare, 
  living. 
  Intermediate 
  between 
  Clcmentia 
  

   proper 
  and 
  the 
  prora 
  group 
  of 
  thin 
  Callistae." 
  [Carpenter, 
  1864b, 
  p. 
  602J 
  

  

  "dementia 
  subdiapliana, 
  Vane. 
  Is., 
  Forbes. 
  One 
  broken 
  sp." 
  [Carpenter, 
  1864b, 
  p. 
  607] 
  

  

  "? 
  Clcmentia 
  subdiapliana, 
  n.s. 
  Hinge 
  normal, 
  very 
  thin, 
  ashy." 
  [Carpenter, 
  1864b, 
  

   p. 
  640] 
  

  

  " 
  ? 
  C. 
  t. 
  ovali, 
  quoad 
  genus 
  valde 
  transver.sa, 
  tumida, 
  tenuissima 
  ; 
  pallide 
  cinerea, 
  epi- 
  

   dermide 
  pallide 
  straminea 
  ; 
  subdiapliana, 
  sed 
  subcalcarea, 
  baud 
  porcellana 
  ; 
  lacvi, 
  nisi 
  

   striis 
  incrementi 
  ; 
  baud 
  lunulata, 
  umbonibus 
  satis 
  prominentibus 
  : 
  intus, 
  valva 
  dextra, 
  

   dentibus 
  anticis 
  duobus 
  acutis, 
  contiguis, 
  elevatis, 
  postico 
  elongato, 
  acuto, 
  bifido, 
  ligamento 
  

   parallelo; 
  valva 
  sinistra 
  dentibus 
  anticis 
  duobus 
  umbonem 
  versus 
  junctis, 
  acutis, 
  di- 
  

   vergentibus, 
  postico 
  elongato, 
  acuto, 
  simplici 
  ; 
  sinu 
  pallii, 
  ut 
  in 
  Dosinia, 
  ajigusto, 
  angulato, 
  

   per 
  dimidium 
  interstitii 
  umbones 
  verses 
  porrecto. 
  Long. 
  .72, 
  lat. 
  .58, 
  alt. 
  .34. 
  

  

  "Hab. 
  — 
  In 
  sinu 
  Pugetiano 
  specimina 
  quaedam, 
  plerumque 
  juniora, 
  piscavit 
  Kennerley: 
  

   ex 
  insula 
  Vancouver, 
  specimen 
  fractum 
  portavit 
  Forbes. 
  

  

  "Textura 
  Lucinopsei 
  convenit 
  ; 
  cardine, 
  Clementiae 
  ; 
  forma, 
  Saxidomo 
  squalido 
  juniori." 
  

   [Carpenter, 
  1865e, 
  p. 
  56] 
  

  

  Dall 
  (1892) 
  gave 
  a 
  detailed 
  description 
  and 
  figured 
  an 
  adult 
  shell 
  of 
  this 
  species 
  from 
  

   Alaska. 
  Carpenter's 
  type 
  was 
  a 
  young 
  shell. 
  The 
  holotype 
  is 
  a 
  double 
  shell 
  in 
  the 
  U. 
  S. 
  Nat. 
  

   Museum, 
  with 
  the 
  label," 
  ? 
  dementia 
  subdiapliana 
  Cpr. 
  Type. 
  Puget 
  Sound. 
  Dr. 
  Kennerly." 
  

  

  Woodring 
  (1938, 
  p. 
  54) 
  doubted 
  that 
  the 
  above 
  type 
  was 
  the 
  holotype, 
  because 
  he 
  con- 
  

   sidered 
  that 
  the 
  measurements 
  of 
  the 
  specimen 
  did 
  not 
  coincide 
  with 
  those 
  given 
  by 
  Carpen- 
  

   ter. 
  However, 
  the 
  measurements 
  correspond 
  so 
  closely^s 
  that 
  that 
  factor 
  does 
  not 
  seem 
  valid. 
  

   Woodring 
  designated 
  the 
  type 
  specimen 
  as 
  a 
  lectotype. 
  Since 
  there 
  is 
  no 
  other 
  specimen 
  

   which 
  can 
  qualify 
  in 
  the 
  type 
  catagory 
  of 
  this 
  species, 
  the 
  U. 
  S. 
  National 
  Museum, 
  no. 
  4541 
  

   specimen 
  remains 
  the 
  type 
  regardless 
  of 
  what 
  strict 
  term 
  is 
  used. 
  

  

  The 
  type 
  is 
  not 
  in 
  the 
  British 
  Museum, 
  as 
  Stewart 
  (1930, 
  p. 
  225) 
  presumed. 
  The 
  following 
  

   data 
  regarding 
  type 
  material 
  were 
  furnished 
  by 
  G. 
  L. 
  Wilkins 
  of 
  the 
  Department 
  of 
  Zoology, 
  

   British 
  Museum 
  : 
  

  

  "I 
  have 
  searched 
  for 
  Clcmentia 
  subdiaplnnia, 
  Carpenter, 
  but 
  all 
  we 
  have 
  is 
  a 
  specimen 
  

   attached 
  to 
  a 
  bright 
  blue 
  label 
  (one 
  of 
  several 
  such 
  in 
  the 
  Cuming 
  Coll.) 
  with 
  a 
  printed 
  state- 
  

   ment 
  'named 
  from 
  the 
  type 
  specimen 
  in 
  theSmithsonian 
  Institution, 
  Washington, 
  D. 
  C.,' 
  the 
  

   name 
  is 
  written 
  in 
  M.S.S. 
  with 
  the 
  locality 
  'Puget 
  Sound.' 
  " 
  

  

  The 
  above 
  cannot 
  be 
  included 
  in 
  syntypic 
  material. 
  It 
  is 
  one 
  of 
  the 
  many 
  thousands 
  of 
  

   specimens 
  sent 
  from 
  the 
  Smithsonian 
  in 
  the 
  1860's 
  and 
  1870's 
  with 
  that 
  standard 
  label 
  to 
  the 
  

   molluscan 
  departments 
  of 
  the 
  institutions 
  of 
  the 
  world. 
  If, 
  as 
  in 
  some 
  cases, 
  ro 
  original 
  ma- 
  

   terial 
  exists, 
  such 
  specimens 
  will 
  be 
  useful 
  from 
  which 
  to 
  choose 
  a 
  "neotype." 
  

  

  Stewart 
  united 
  the 
  fossil 
  Saxidomus 
  gibbosus 
  Gabb, 
  1869, 
  with 
  this 
  species, 
  and 
  Grant 
  and 
  

   Gale 
  reported 
  the 
  species 
  back 
  to 
  the 
  Pliocene 
  and 
  ix)ssibly 
  Miocene. 
  They 
  did 
  not 
  believe 
  in 
  

   an 
  identity 
  with 
  Pilar 
  orcgonesis 
  (Conrad) 
  which 
  had 
  been 
  suggested. 
  The 
  general 
  pitaroid 
  

   form 
  of 
  various 
  species 
  suggests 
  identity, 
  but 
  often 
  such 
  apparent 
  similarities 
  are 
  mislead- 
  

  

  ^'' 
  Carpenter's 
  measurements, 
  .72 
  long, 
  and 
  .58 
  lat., 
  would 
  equal 
  18.28 
  mm. 
  long, 
  (length) 
  

   and 
  14.732 
  mm. 
  lat. 
  (height), 
  which 
  is 
  practically 
  the 
  dimensions 
  given 
  by 
  Woodring 
  for 
  the 
  

   specimen, 
  U. 
  S. 
  National 
  Museum, 
  no. 
  4541, 
  "length, 
  18.5 
  mm.; 
  height, 
  15 
  mm." 
  Such 
  a 
  dif- 
  

   ference 
  in 
  mm. 
  can 
  be 
  accounted 
  for 
  in 
  the 
  measurements 
  by 
  different 
  individuals. 
  For 
  Car- 
  

   penter's 
  terms 
  of 
  measurements 
  see 
  notes 
  under 
  explanatory 
  remarks, 
  this 
  paper. 
  

  

  