﻿GASTROPODA 
  

  

  207 
  

  

  Ocenebra 
  tenuisculpta 
  (Carpenter) 
  

   ( 
  IM. 
  23. 
  figs. 
  9-12) 
  

  

  Trophon 
  tentiisculptus 
  Carpenter, 
  1864b, 
  p. 
  539; 
  Reprint, 
  1872, 
  p. 
  25; 
  1866, 
  Ann. 
  Mag. 
  Nat. 
  

  

  Hist., 
  ser. 
  3, 
  vol. 
  XVII, 
  p. 
  275, 
  277; 
  Reprint, 
  1872, 
  p. 
  322, 
  324; 
  not 
  Tryon, 
  1880, 
  Maji. 
  

  

  Conch., 
  vol. 
  II, 
  p. 
  139, 
  pi. 
  ii, 
  fig. 
  359 
  copy 
  Kobelt, 
  Kuster. 
  Conch. 
  Cab., 
  t. 
  76. 
  f. 
  9; 
  

  

  Cooper, 
  1888, 
  7th 
  Ann. 
  Rept. 
  California 
  State 
  Min. 
  Bur., 
  p. 
  268; 
  not 
  Keen, 
  1937, 
  p. 
  48 
  

   Trophon 
  (Boreotrophon) 
  tcnuiscitlptus 
  Carpenter, 
  Arnold, 
  1903, 
  p. 
  253 
  

   Boreotrophon 
  tenitisculptits 
  (Carpenter), 
  D.all, 
  1902, 
  U. 
  S. 
  Nat. 
  Mus., 
  Proc, 
  vol. 
  24, 
  no. 
  

  

  1264, 
  p. 
  541 
  in 
  part 
  section 
  Trophonopsis; 
  Van 
  Winkle 
  [Palmer], 
  1921, 
  Bull. 
  Amer. 
  

  

  Paleont., 
  vol. 
  VIII, 
  no. 
  36, 
  p. 
  5 
  copy 
  of 
  original 
  description, 
  pi. 
  1, 
  figs. 
  6-9 
  types 
  

   Not 
  Neptunea 
  tenuisculpta 
  (Carpenter), 
  Dall, 
  1921, 
  p. 
  Ill, 
  pi. 
  11, 
  figs. 
  11, 
  12; 
  Oldrovd, 
  

  

  1927, 
  vol. 
  II, 
  pt. 
  2, 
  p. 
  39, 
  pi. 
  30, 
  figs. 
  3, 
  7 
  copy 
  of 
  Dall, 
  1921, 
  pi. 
  11, 
  figs. 
  11, 
  12 
  = 
  

  

  Trophon 
  lasius 
  Dall, 
  1919, 
  U. 
  S. 
  Nat. 
  Mus., 
  Proc., 
  vol. 
  56, 
  p. 
  338; 
  Willet, 
  1938, 
  

  

  Nautilus, 
  vol. 
  52, 
  no. 
  1, 
  p. 
  10, 
  pi. 
  1, 
  fig. 
  6 
  type 
  

   Trophon 
  (Trophonopsis) 
  tenuisculpfus 
  (Carpenter), 
  Grant 
  and 
  Gale, 
  1931, 
  p. 
  725 
  in 
  part; 
  

  

  T. 
  lasiiis 
  Dall 
  

   Tritonalia 
  tenuisculpta 
  (Carpenter), 
  Willett, 
  1938, 
  Nautilus, 
  vol. 
  52, 
  no. 
  1, 
  p. 
  10 
  

  

  "T. 
  testa 
  T. 
  Barvicensi 
  simili, 
  sed 
  sculptura 
  minus 
  extante 
  ; 
  vertice 
  nucleoso 
  minimo 
  ; 
  

   anfractibus 
  uno 
  et 
  dimidio 
  laevibus, 
  apice 
  acuto 
  ; 
  normalibus 
  v., 
  tumidis, 
  postice 
  subangulatis, 
  

   suturis 
  impressis; 
  costis 
  radiantibus 
  x.-xiv., 
  plerumque 
  xii., 
  baud 
  varicosis, 
  angustis, 
  obtusis 
  ; 
  

   liris 
  spiralibus 
  majoribus, 
  distantibus, 
  quarum 
  ii.-iii. 
  in 
  spira 
  monstrantur, 
  aliis 
  intercalantibus, 
  

   supra 
  costas 
  radiantes 
  undatim 
  transeuntibus 
  ; 
  tota 
  superficie 
  lirulis 
  incrementi, 
  supra 
  liras 
  

   spirales 
  squamosis, 
  eleganter 
  ornata 
  ; 
  canali 
  longiore, 
  subrecta, 
  vix 
  clausa 
  ; 
  labro 
  acutiore, 
  

   postice 
  et 
  intus 
  incrassto, 
  dentibus 
  circ. 
  v. 
  munito; 
  labio 
  conspicuo, 
  laevi 
  ; 
  columella 
  torsa. 
  

  

  "Hab. 
  Sta. 
  Barbara, 
  Pleistocene 
  formation 
  {Jezvett). 
  

  

  "This 
  very 
  elegant 
  shell 
  is 
  like 
  the 
  least-sculptured 
  forms 
  of 
  T. 
  Barviccnsis 
  from_ 
  which 
  

   it 
  appears 
  to 
  differ 
  in 
  its 
  extremely 
  small 
  nucleus. 
  It 
  is 
  very 
  closely 
  related 
  to 
  T. 
  fimbriatulus, 
  

   A. 
  Ad., 
  from 
  Japan, 
  but 
  differs 
  in 
  texture, 
  and 
  is 
  regarded 
  by 
  Air. 
  Adams 
  as 
  distinct.^ 
  It 
  

   stands 
  on 
  the 
  confines 
  of 
  the 
  genus, 
  there 
  being 
  a 
  slight 
  columellar 
  twist, 
  as 
  in 
  Peristernia." 
  

   [Carpenter, 
  1866, 
  p. 
  277] 
  

  

  Dimensions. 
  — 
  Length 
  16 
  mm. 
  ; 
  greatest 
  diameter 
  8 
  mm. 
  ; 
  length 
  13 
  mm. 
  ; 
  greatest 
  diameter 
  

   7 
  mm. 
  (syntypes) 
  

  

  There 
  are 
  two 
  specimens 
  of 
  this 
  species 
  on 
  the 
  original 
  card 
  labelled 
  "type." 
  They 
  are 
  in 
  

   the 
  Paleontological 
  Laboratory, 
  Cornell 
  University. 
  The 
  history 
  of 
  tlieir 
  preservation 
  there 
  

   is 
  described 
  by 
  Van 
  Winkle 
  [Palmer] 
  (1921). 
  

  

  Willett 
  (1938) 
  in 
  consultation 
  with 
  Grant 
  and 
  Strong, 
  showed 
  that 
  the 
  Recent 
  form 
  

   which 
  had 
  commonly 
  been 
  determined 
  by 
  authors 
  and 
  labelled 
  in 
  collections 
  as 
  this 
  species 
  

   was 
  in 
  reality 
  something 
  different 
  and 
  is 
  what 
  Dall 
  (1919) 
  named 
  T. 
  lasius. 
  T. 
  tenuisculpta 
  

   Carpenter 
  is 
  not 
  in 
  the 
  Recent 
  fauna. 
  

  

  Syntypes. 
  — 
  No. 
  4951, 
  Paleontological 
  Laboratory, 
  Cornell 
  University 
  Ithaca, 
  New 
  York. 
  

  

  Distribution. 
  — 
  Santa 
  Barbara 
  formation. 
  Pliocene-Pleistocene.^o^ 
  Santa 
  Barbara, 
  Cali- 
  

   fornia 
  (type) 
  ; 
  California 
  (Arnold; 
  Grant 
  and 
  Gale; 
  Woodring, 
  Bramlette, 
  and 
  Kew, 
  1946) 
  

  

  Genus 
  Trophonopsis 
  Bucquoy, 
  Dautzenberg, 
  and 
  Dollfus, 
  1882 
  

   (Boreotrophon 
  Fischer, 
  1884) 
  

  

  Trophonopsis 
  Bucquoy, 
  Dautzenberg, 
  and 
  Dollfus, 
  1882, 
  Moll. 
  Marins 
  du 
  Roussillon, 
  

   Gastropodes, 
  t. 
  I, 
  p. 
  40 
  

  

  Type 
  species 
  by 
  monotypy 
  and 
  original 
  designation, 
  Murex 
  muricatus 
  Montagu, 
  1803, 
  Test. 
  

   Brit., 
  p. 
  262, 
  pi. 
  IX, 
  fig. 
  2. 
  Recent. 
  Western 
  Europe. 
  Tryon, 
  1880, 
  Man. 
  Conch., 
  vol. 
  II, 
  

   pi. 
  31, 
  fig. 
  308. 
  Murex 
  clathratus 
  Linnaeus, 
  1867, 
  Syst. 
  Nat., 
  p. 
  1223, 
  type 
  species 
  of 
  

   Boreotrophon 
  Fischer, 
  1884, 
  Man. 
  de 
  Conchyl., 
  pt. 
  II, 
  p. 
  640; 
  Tryon, 
  1880, 
  Man. 
  Conch., 
  

   vol. 
  II, 
  pi. 
  31, 
  fig. 
  312 
  

  

  Trophonopsis 
  triangulatus 
  Carpenter 
  

  

  Trophon 
  triangulatus 
  Carpenter, 
  1864b, 
  p. 
  613, 
  663; 
  Reprint, 
  1872, 
  p. 
  99, 
  149; 
  1866, 
  Cali- 
  

   fornia 
  Acad. 
  Sci., 
  Proc, 
  vol. 
  Ill, 
  p. 
  224; 
  Cooper, 
  1867, 
  Geog. 
  Cat. 
  Moll., 
  Geol. 
  Sur. 
  

   California, 
  p. 
  38, 
  1888, 
  7th 
  Ann. 
  Rept. 
  California 
  State 
  Min., 
  p. 
  268; 
  Tryon, 
  1880, 
  Man. 
  

   Conch., 
  vol. 
  II, 
  p. 
  142; 
  Dall, 
  1892, 
  U. 
  S. 
  Nat. 
  Mus., 
  Proc, 
  vol. 
  14, 
  no. 
  849, 
  p. 
  180, 
  pi. 
  V, 
  

   figs. 
  1, 
  3 
  "type," 
  6 
  

  

  101 
  Bailey 
  (1935, 
  p. 
  492-494) 
  gave 
  upper 
  Pliocene-lower 
  Pleistocene. 
  Woodring, 
  Bram- 
  

   lette, 
  and 
  Kew 
  (1946, 
  p. 
  104) 
  gave 
  lower 
  Pleistocene. 
  

  

  