﻿PELECYPODA 
  81 
  

  

  Eucrassatella 
  fluctuata 
  (Carpenter) 
  

   (PI. 
  7, 
  figs. 
  5-7) 
  

  

  Astarte 
  fluctuata 
  Carpenter, 
  1864b, 
  p. 
  611, 
  642; 
  Reprint, 
  1872, 
  p. 
  97, 
  128; 
  1866, 
  Feb., 
  Cali- 
  

   fornia 
  Acad. 
  Sci., 
  Proc, 
  vol. 
  Ill, 
  p. 
  209; 
  Cooper, 
  1867, 
  Geog. 
  Cat. 
  Moll., 
  Geol. 
  Sur. 
  

   California, 
  p. 
  8; 
  Tryon, 
  1872, 
  Acad. 
  Nat. 
  Sci. 
  Philadelphia, 
  Proc, 
  vol. 
  24, 
  p. 
  246; 
  

   Smith, 
  1881, 
  Jour. 
  Conch., 
  vol. 
  Ill, 
  p. 
  231 
  

  

  Crassatcllites 
  flnctuatns 
  (Carpenter), 
  Ball, 
  1921, 
  p. 
  31; 
  Oldroyd, 
  1924b, 
  109; 
  Keen, 
  1937, 
  

   p. 
  20 
  

  

  Crassatella 
  fluctuata 
  (Carpenter), 
  Burch, 
  1944, 
  no. 
  39, 
  p. 
  8; 
  1945, 
  no. 
  45, 
  p. 
  11 
  

  

  Eucrassatella 
  fluctuata 
  (Carpenter), 
  Woodring, 
  Bramlette, 
  and 
  Kew, 
  1946, 
  U. 
  S. 
  Nat. 
  

   Mus., 
  Prof. 
  Paper 
  207, 
  p. 
  81, 
  pi. 
  31, 
  figs. 
  1-8 
  

   "? 
  Astarte 
  flucttmta, 
  n.s. 
  Cat. 
  Is.; 
  2 
  similar 
  valves; 
  40 
  fm. 
  (Very 
  like 
  the 
  Crag 
  fossil, 
  

  

  A. 
  omaria, 
  jun. 
  ; 
  but 
  Dr. 
  Cooper 
  considers 
  it 
  a 
  Crassatella.)" 
  [Carpenter, 
  1864b,_p. 
  611] 
  

  

  "? 
  Astarte 
  fluctuata, 
  n.s. 
  Very 
  close 
  to 
  Omalii, 
  jun. 
  of 
  Coralline 
  Crag. 
  2 
  right 
  v. 
  30-40 
  

  

  fm. 
  Cp." 
  [Carpenter, 
  1864b, 
  p. 
  642] 
  

  

  Oldroyd 
  reprinted 
  the 
  major 
  portion 
  of 
  the 
  original 
  description. 
  The 
  following 
  original 
  

   lines 
  should 
  be 
  added 
  to 
  complete 
  her 
  copy 
  : 
  

  

  "Long. 
  0.33, 
  lat. 
  0.26, 
  0.10. 
  

  

  "Hah. 
  Catalina 
  Island, 
  30-40 
  fm. 
  Cooper. 
  

  

  "Only 
  dead 
  right 
  valves 
  having 
  been 
  found, 
  it 
  is 
  not 
  known 
  whether 
  this 
  species 
  be 
  an 
  

   Astarte 
  (according 
  to 
  Messrs. 
  Adams 
  and 
  Hanley) 
  or 
  an 
  abnormal 
  Crassatella. 
  It 
  scarcely 
  

   differs 
  from 
  the 
  young 
  of 
  Astarte 
  omalia, 
  from 
  the 
  Coralline 
  Crag." 
  [Carpenter, 
  1866a, 
  p. 
  

   209] 
  

  

  The 
  holotype 
  is 
  mounted 
  on 
  the 
  original 
  glass 
  with 
  label 
  by 
  Carpenter 
  in 
  white 
  ink 
  "fluc- 
  

   tuata, 
  Cpr. 
  Cp. 
  1060 
  Catalina 
  Is. 
  (Cooper), 
  type 
  'Cooper'." 
  

  

  Holotype.— 
  v. 
  S. 
  National 
  Museum, 
  No. 
  1060 
  (California 
  State 
  Collection, 
  No. 
  1060) 
  

   Distribution. 
  — 
  Recent. 
  Catalina 
  Island, 
  California, 
  30-40 
  fathoms 
  (type) 
  ; 
  Santa 
  Barbara 
  

   Islands, 
  to 
  San 
  Pedro, 
  California 
  (Burch). 
  Lower 
  Pleistocene. 
  California 
  (Woodring, 
  Bram- 
  

   lette, 
  and 
  Kew) 
  

  

  "Crassatella 
  marginata 
  Carpenter" 
  

  

  "Crassatella 
  marginata 
  Cptr. 
  Californ." 
  Paetal, 
  1890, 
  Calatoguder 
  Conchilien-Sammlung, 
  

   pt. 
  3. 
  p. 
  139 
  fide 
  Lamy, 
  1917; 
  Orcutt, 
  1915, 
  Molluscan 
  World, 
  p. 
  13. 
  60 
  

  

  ? 
  Crassatcllites 
  marginata 
  "Cpr.", 
  Keep, 
  1887, 
  West 
  Coast 
  Shells, 
  p. 
  179; 
  Lamy, 
  1917, 
  Jour, 
  

   de 
  Conchyl., 
  vol. 
  LXII, 
  p. 
  204 
  footnote 
  

  

  The 
  name 
  Crassatella 
  marginata 
  Carpenter 
  is 
  a 
  nomen 
  nudutn. 
  Therefore, 
  it 
  is 
  difficult 
  to 
  

   determine 
  just 
  what 
  the 
  various 
  authors 
  meant 
  unless 
  they 
  followed 
  Keep. 
  See 
  Burch 
  (1944, 
  

   no. 
  39, 
  p. 
  9) 
  for 
  notes 
  on 
  the 
  name. 
  The 
  writer 
  separates 
  the 
  references 
  in 
  Keep 
  as 
  the 
  foun- 
  

   dation 
  of 
  a 
  valid 
  specific 
  name 
  with 
  Keep 
  as 
  the 
  author. 
  The 
  test 
  will 
  be 
  if 
  there 
  is 
  a 
  species 
  

   of 
  Crassatella 
  in 
  the 
  California 
  fauna 
  which 
  needs 
  this 
  berth. 
  Keep 
  and 
  others 
  must 
  have 
  had 
  

   some 
  specimen 
  to 
  whicli 
  they 
  were 
  applying 
  Carpenter's 
  ms. 
  name. 
  

  

  Crassatella 
  marginata 
  Keep 
  

  

  Crassatella 
  marginata 
  "Cpr.", 
  Keep, 
  1887, 
  West 
  Coast 
  Shells, 
  p. 
  179 
  

  

  ? 
  Crassatellites 
  margarita 
  Carpenter, 
  Jordan, 
  1924, 
  So. 
  California 
  Acad. 
  Sci., 
  Bull., 
  vol. 
  

  

  XXIII, 
  pt. 
  5, 
  p. 
  153 
  probable 
  error 
  for 
  "marginata" 
  

   Crassatellites 
  marginata 
  "Carpenter," 
  Kelsey, 
  1905, 
  San 
  Diego 
  Soc. 
  Nat. 
  Hist., 
  Trans., 
  vol. 
  

  

  1, 
  no. 
  2, 
  p. 
  38; 
  Baily, 
  1935, 
  West 
  Coast 
  Shells 
  (Keep), 
  p. 
  73 
  

  

  Keep 
  published 
  a 
  brief 
  description 
  adequate 
  to 
  validate 
  the 
  specific 
  name 
  if 
  specimens 
  are 
  

   available 
  to 
  determine 
  what 
  Keep 
  had 
  in 
  mind. 
  The 
  specific 
  name 
  must 
  be 
  credited 
  to 
  Keep 
  

   and 
  not 
  to 
  Carpenter. 
  A 
  type 
  should 
  come 
  from 
  specimens 
  which 
  Keep 
  used 
  at 
  the 
  time 
  of 
  

   his 
  edition 
  of 
  1887, 
  but 
  apparently 
  those 
  are 
  not 
  available. 
  According 
  to 
  Mr. 
  Joshua 
  Baily 
  

   (March 
  9, 
  1950, 
  personal 
  communication) 
  they 
  may 
  turn 
  up 
  in 
  the 
  Baker-Kelsey 
  Collection 
  

   at 
  the 
  Scripps 
  Institute 
  of 
  Oceanography 
  at 
  La 
  Jolla. 
  

  

  