﻿62 
  MARINE 
  MOLLTTSCA 
  DESCRIBED 
  BY 
  P, 
  P. 
  CARPENTER 
  

  

  p. 
  12; 
  SowEiiBY, 
  1871, 
  Conch. 
  Icon., 
  Laeda, 
  vol. 
  18, 
  species 
  56, 
  pi. 
  9, 
  fig. 
  56 
  exterior 
  ; 
  Dall, 
  

   1902, 
  U. 
  S. 
  Nat. 
  Mus., 
  Proc., 
  vol. 
  24, 
  p. 
  558, 
  pi. 
  XL, 
  fig. 
  9 
  exterior; 
  Arnold, 
  1903, 
  p. 
  97, 
  

   pi. 
  17, 
  fig. 
  4; 
  Packard, 
  1918, 
  Univ. 
  California, 
  Pub. 
  Zool., 
  vol. 
  14, 
  p. 
  247, 
  pi. 
  14, 
  fig. 
  5 
  

   exterior; 
  Dall, 
  1921, 
  p. 
  11; 
  Oldroyd, 
  1924, 
  Pub. 
  Puget 
  Sound 
  Biol. 
  Station, 
  vol. 
  4, 
  p. 
  7, 
  

   pi. 
  25, 
  fig. 
  4 
  copy 
  Dall 
  ; 
  1924b, 
  p. 
  23, 
  pi. 
  6, 
  fig. 
  4 
  copy 
  Dall, 
  pi. 
  Z7, 
  fig. 
  5 
  exterior 
  

  

  Nuciilana 
  hamata 
  (Carpenter), 
  Grant 
  and 
  Gale, 
  1931, 
  p. 
  125, 
  pi. 
  1, 
  figs. 
  14, 
  15 
  exterior; 
  

   Baily, 
  1935, 
  West 
  Coast 
  Shells 
  (Keep), 
  p. 
  43, 
  44, 
  fig. 
  18 
  copy 
  Dall; 
  Keen, 
  1937, 
  p. 
  22 
  

  

  Nucnlana 
  (Thcstyleda) 
  hamata 
  (Carpenter), 
  Hertlein 
  and 
  Strong, 
  1940, 
  Zoologica, 
  New 
  

   York, 
  Zool. 
  Soc., 
  vol. 
  XXV, 
  pt. 
  4, 
  p. 
  400, 
  pi. 
  II, 
  fig. 
  14 
  exterior; 
  Burch, 
  1944, 
  no. 
  33, 
  p. 
  

   11; 
  1945, 
  no. 
  45, 
  p. 
  4; 
  Abbott, 
  1954, 
  p. 
  339, 
  fig. 
  26d 
  

  

  "Santa 
  Barbara 
  ; 
  Cat. 
  Is., 
  20-60 
  fms. 
  ; 
  common."- 
  [Carpenter, 
  1864b, 
  p. 
  612] 
  

  

  "Like 
  Steenstrupi 
  and 
  permdoides, 
  but 
  very 
  hooked, 
  sculpture 
  strong. 
  20-60 
  fm. 
  c. 
  Cp." 
  

   [Carpenter, 
  1864b, 
  p. 
  644] 
  

  

  "L.t. 
  "L. 
  caudatae 
  simili, 
  sed 
  valde 
  hamata 
  ; 
  planata, 
  valde 
  inaequilaterali 
  ; 
  umbonibus 
  

   angustioribus, 
  laevibus, 
  ad 
  trientem 
  sitis 
  ; 
  niargiiiilnis, 
  dors. 
  post, 
  niaxime 
  incurvato, 
  ant. 
  

   parum, 
  veritr. 
  valde 
  excurvatis 
  ; 
  parte 
  postica 
  valde 
  rostrata, 
  rostro 
  biangulato, 
  curvato, 
  an- 
  

   gustiore, 
  biangulata; 
  sulcis 
  et 
  costis 
  valdis, 
  concentricis, 
  supra 
  rostrum 
  rontinuis, 
  dorsum 
  ver- 
  

   sus 
  postice 
  obsoletis. 
  

  

  "Long. 
  0.37, 
  lat. 
  0.10, 
  alt. 
  0.10. 
  

  

  "State 
  Collection, 
  No. 
  984." 
  [Carpenter, 
  1866a, 
  p. 
  210] 
  

  

  The 
  type 
  material 
  is 
  in 
  the 
  U. 
  S. 
  National 
  Museum, 
  Cat. 
  107420, 
  and 
  consists 
  of 
  specimens 
  

   in 
  two 
  vials. 
  One 
  vial 
  contains 
  two 
  valves 
  loose 
  and 
  two 
  broken 
  opposite 
  valves. 
  They 
  have 
  

   a 
  label 
  "Cp 
  984" 
  which 
  is 
  the 
  original 
  "State 
  Collection" 
  number. 
  The 
  entire 
  valves 
  measure 
  

   9 
  mm., 
  length; 
  5 
  mm., 
  height; 
  1 
  mm., 
  thickness 
  (one 
  valve) 
  which 
  corresponds 
  fairly 
  closely 
  

   to 
  Carpenter's 
  measurements; 
  9.39 
  mm., 
  long.; 
  [lat. 
  0.10]"; 
  2.5 
  mm., 
  t. 
  (both 
  valves), 
  and 
  

   also 
  to 
  the 
  length 
  indicated 
  by 
  Dall. 
  The 
  other 
  vial 
  in 
  the 
  same 
  suite 
  contains 
  a 
  double 
  speci- 
  

   men 
  with 
  the 
  label 
  "type 
  fig'd." 
  The 
  specimens 
  measure 
  10 
  mm., 
  length; 
  5 
  mm., 
  height; 
  2j^ 
  

   mm., 
  thickness 
  (both 
  valves). 
  The 
  label 
  suggests 
  that 
  it 
  was 
  the 
  specimen 
  figured 
  by 
  Dall, 
  

   but 
  the 
  measurement 
  given 
  by 
  Dall 
  is 
  closer 
  to 
  that 
  of 
  the 
  other 
  specimen 
  (Cp. 
  984). 
  

  

  According 
  to 
  the 
  U. 
  S. 
  National 
  Museum 
  Catalogue, 
  No. 
  107420 
  should 
  include 
  only 
  one 
  

   specimen. 
  This 
  suggests 
  that 
  the 
  original 
  specimen 
  is 
  the 
  broken 
  shell 
  aiid 
  that 
  the 
  complete 
  

   specimens 
  were 
  added 
  later, 
  ix)ssibly 
  by 
  Dall 
  who 
  figured 
  one. 
  The 
  specimen 
  (pi. 
  2, 
  fig. 
  6) 
  

   is, 
  therefore, 
  chosen 
  as 
  the 
  lectotype. 
  

  

  Although 
  the 
  exterior 
  of 
  the 
  shells 
  of 
  this 
  species 
  has 
  been 
  frequently 
  illustrated, 
  the 
  in- 
  

   terior 
  has 
  not 
  been 
  figured 
  heretofore. 
  Dall 
  (1916a, 
  p. 
  397) 
  named 
  a 
  subspecies 
  limata 
  off 
  

   Santa 
  Rosa, 
  California. 
  

  

  Lectotype.— 
  {J. 
  S. 
  National 
  Museum, 
  No. 
  107420 
  ["Cp. 
  984"] 
  

  

  Distribution.— 
  Recent. 
  Catalina 
  Island, 
  California 
  20-60 
  fathoms 
  (type) 
  ; 
  Santa 
  Barbara, 
  

   California; 
  off 
  Farallon 
  Islands, 
  39-815 
  fathoms 
  (Packard); 
  off 
  San 
  Juan, 
  Washington, 
  

   25-35 
  fathoms 
  (Oldroyd) 
  ; 
  east 
  of 
  Cedros 
  Island, 
  Mexico, 
  45 
  fathoms 
  (Hertlein 
  and 
  Strong). 
  

   Pleistocene. 
  California 
  (Arnold; 
  Oldroyd, 
  1924). 
  Pliocene. 
  California 
  (Arnold) 
  

  

  Family 
  Arcidae 
  

   Genus 
  Barbatia 
  Gray, 
  1842 
  

  

  Barbatia 
  Gray, 
  1842, 
  Synopsis 
  of 
  the 
  Contents 
  of 
  the 
  British 
  Museum, 
  ed. 
  44, 
  p. 
  81 
  ; 
  1847, 
  

   Zool. 
  Soc. 
  London, 
  Proc, 
  p. 
  197 
  

  

  Type 
  species 
  by 
  subsequent 
  designation. 
  Gray, 
  1847, 
  Zool. 
  Soc. 
  London, 
  Proc, 
  p. 
  197, 
  Area 
  

   barbata 
  Linnaeus, 
  1758, 
  p. 
  693. 
  Recent. 
  Mediterranean. 
  Bucquoy, 
  Dautzenberg, 
  and 
  

   Dollfus, 
  1891, 
  Moll. 
  Marins 
  du 
  Roussillon, 
  t. 
  2, 
  fasc 
  18, 
  pi. 
  32 
  figs. 
  1-5; 
  Rein 
  hart, 
  1935, 
  

   Bull. 
  Musee 
  roy. 
  d'Hist. 
  Nat. 
  Belgique, 
  t. 
  XI, 
  no. 
  13, 
  p. 
  20, 
  pi. 
  1, 
  figs, 
  b, 
  b' 
  

  

  Barbatia 
  pernoides 
  (Carpenter) 
  

   (PI. 
  1, 
  figs. 
  4, 
  5) 
  

  

  Area 
  pernoides 
  Carpenter, 
  1856, 
  Rept. 
  British 
  Assoc. 
  Adv. 
  Sci., 
  p. 
  283, 
  310, 
  351 
  

   Byssoarca 
  pernoides 
  Gould 
  and 
  Carpenter, 
  1856, 
  Zool. 
  Soc. 
  London, 
  Proc, 
  p. 
  202; 
  Car- 
  

  

  PENTKR, 
  1860, 
  Smith. 
  Misc 
  Coll., 
  v. 
  2, 
  art. 
  6, 
  checklist 
  no. 
  1, 
  p. 
  2; 
  Reinhart, 
  1943, 
  Geol. 
  

  

  Soc 
  Amcr., 
  Sp. 
  Paper 
  47, 
  p. 
  35, 
  36 
  

  

  "Appears 
  to 
  be 
  an 
  error 
  here, 
  for 
  the 
  height 
  of 
  the 
  shell 
  would 
  not 
  equal 
  the 
  thickness 
  as 
  

   indicated 
  by 
  Carpenter. 
  

  

  