﻿r.ASTRoroDA 
  2S'S 
  

  

  Turbonilla 
  (Pyrgiscus) 
  tenuicula 
  (Gould) 
  

  

  Chemnitzia 
  crebrifilata 
  Carpenter 
  

  

  (PL 
  21, 
  fig. 
  20; 
  

  

  Chemnitzia 
  tenuicula 
  Gould, 
  1853, 
  Boston 
  Soc. 
  Nat. 
  Hist., 
  Jour., 
  vol. 
  6, 
  p. 
  383-384, 
  pi. 
  14, 
  

   fig. 
  15; 
  Dall 
  and 
  Bartsch. 
  1909, 
  U. 
  S. 
  Nat. 
  Mus., 
  Bull. 
  68, 
  p. 
  92, 
  pi. 
  8, 
  figs. 
  3, 
  7. 
  7a, 
  

   12, 
  12a, 
  14, 
  14a 
  (type 
  of 
  T. 
  cuspidata 
  Cari)enter) 
  including 
  representative 
  figures 
  of 
  

   Carpenter 
  name; 
  (iRant 
  a\d 
  Gale, 
  1931, 
  p. 
  870, 
  see 
  for 
  additional 
  synonymy 
  

  

  Chemnitzia 
  terehralis 
  Carpenter, 
  1857, 
  Mazatlan 
  Shells, 
  p. 
  432 
  fide 
  Dall 
  and 
  Bartsch, 
  

   1909, 
  p. 
  92 
  

  

  Chemnitzia 
  unifasciata 
  Carpenter, 
  1857, 
  Mazatlan 
  Shells, 
  p. 
  433 
  fide 
  Dall 
  and 
  Bartsch, 
  

   1909, 
  p. 
  92 
  

  

  Chemnitzia 
  (? 
  tcnuicnla, 
  var.) 
  subcuspidata 
  Carpenter, 
  1864b, 
  p. 
  613, 
  659; 
  Reprint, 
  1872, 
  p. 
  

   99, 
  145 
  fide 
  Dall 
  and 
  B.'Vrtsch, 
  1909; 
  Cooper, 
  1867, 
  Geog. 
  Cat. 
  AIoll., 
  Geol. 
  Sur. 
  Cali- 
  

   fornia, 
  p. 
  22) 
  

  

  Chemnitzia 
  subcuspidata 
  Carpenter, 
  1866, 
  California 
  Acad. 
  Sci., 
  Proc. 
  vol. 
  Ill, 
  p. 
  220 
  

  

  Chemnitzia 
  crebrifilata 
  Carpenter, 
  1864b, 
  p. 
  537, 
  659; 
  Reprint, 
  1872, 
  p. 
  23, 
  145; 
  1865, 
  Ann. 
  

   Mag. 
  Nat. 
  Hist., 
  ser. 
  3, 
  vol. 
  XV, 
  p. 
  395 
  ; 
  Reprint, 
  1872, 
  p. 
  285 
  ; 
  Cooper, 
  1867, 
  Geog. 
  Cat. 
  

   Moll., 
  Geol. 
  Sur. 
  California, 
  p. 
  33 
  

  

  Turbonilla 
  (Pyrgiscus) 
  crebrifilata 
  (Carpenter), 
  Dall 
  and 
  Bartsch 
  in 
  Arnold, 
  1903, 
  

   p. 
  276. 
  pi. 
  n, 
  figs. 
  6, 
  6a 
  fide 
  Dall 
  and 
  Bartsch, 
  1909 
  

  

  Turbonilla 
  (Pyrgiscus) 
  subcuspidata 
  (Carpenter), 
  Dall 
  and 
  Bartsch 
  in 
  Arnold, 
  1903, 
  

   p. 
  277, 
  pi. 
  II, 
  figs. 
  2, 
  2a 
  type 
  fide 
  Dall 
  and 
  Bartsch, 
  1909; 
  Burch, 
  1946, 
  no. 
  61, 
  

   p. 
  32 
  under 
  T. 
  (P.) 
  tcnuicnla 
  Gould 
  

  

  Dall 
  and 
  Bartsch 
  indicated 
  in 
  the 
  synonymy 
  of 
  T. 
  tenuicula 
  Gould 
  several 
  Carpenter 
  

   names. 
  T. 
  terebralis 
  and 
  T. 
  unifasciata 
  are 
  Mazatlan 
  catalogue 
  names, 
  and 
  the 
  figuring 
  of 
  

   the 
  types 
  of 
  those 
  forms 
  properly 
  belong 
  with 
  the 
  illustration 
  of 
  that 
  catalogue. 
  The 
  holo- 
  

   type 
  of 
  T. 
  crebrifilata 
  (Santa 
  Barbara) 
  is 
  in 
  the 
  Redpath 
  Museum, 
  no. 
  2363. 
  That 
  of 
  

   T. 
  tenuicula 
  subcuspidata 
  Carpenter 
  is 
  in 
  the 
  U. 
  S. 
  National 
  Museum 
  (no. 
  14829) 
  and 
  was 
  

   figured 
  by 
  Dall 
  and 
  Bartsch 
  (1903, 
  PI. 
  II, 
  figs. 
  2, 
  2a; 
  1909, 
  pi. 
  8, 
  figs. 
  14, 
  Ha)."^ 
  It 
  is 
  a 
  

   specimen 
  collected 
  by 
  Cooper 
  at 
  San 
  Diego. 
  (See 
  Carpenter, 
  1864b, 
  p. 
  613, 
  no. 
  106.) 
  

  

  "Ribs 
  more 
  distant, 
  muricated 
  at 
  sutures." 
  [Carpenter, 
  1864, 
  p. 
  659 
  C. 
  tenuicula 
  var. 
  

   subcuspidata] 
  

  

  "Slender, 
  whitish 
  : 
  with 
  8 
  spiral 
  threads 
  passing 
  over 
  24 
  ribs, 
  evanescent 
  round 
  base." 
  

   [Carpenter, 
  1864b, 
  p. 
  659, 
  C. 
  crebrifilata] 
  

  

  "C. 
  testa 
  satis 
  tereti, 
  subalbida, 
  haud 
  regulari 
  ; 
  anfr. 
  nucl. 
  ii., 
  helicoideis, 
  decliviter 
  sitis, 
  

   margines 
  spirae 
  parum 
  excurvatos 
  paullum 
  superantibus 
  ; 
  norm. 
  VIII, 
  quorum 
  primi 
  subro- 
  

   tundati, 
  ultimi 
  vix 
  planati, 
  suturis 
  valde 
  distinctis 
  ; 
  cost. 
  rad. 
  circ. 
  XXIV., 
  subrectis, 
  acutiori- 
  

   bus, 
  angustis, 
  interdum 
  attingentibus, 
  anfr. 
  ultimo 
  crebrioribus 
  minus 
  expressis, 
  circa 
  basim 
  

   prolongatam 
  haud 
  subito 
  evanescentibus 
  ; 
  lirulis 
  spiralibus, 
  in 
  spira 
  circ. 
  VIII., 
  rotundatis 
  

   expressis, 
  anfr. 
  ult. 
  supra 
  costas 
  subnodulosis, 
  circa 
  basim 
  crebrioribus 
  ; 
  peritremate 
  con- 
  

   tinuo 
  ; 
  columella 
  vix 
  torta, 
  haud 
  plicata; 
  labio 
  distincto. 
  Long. 
  .22, 
  long. 
  spir. 
  .17, 
  lat. 
  .07, 
  

   div. 
  18°. 
  

  

  "Hob. 
  Sta. 
  Barbara, 
  1 
  specimen 
  (Jen'Ctt)." 
  [Carpenter, 
  1865h, 
  p. 
  395, 
  C. 
  crebrifilata] 
  

   ". 
  . 
  . 
  State 
  Collection, 
  no. 
  670 
  ; 
  a. 
  

  

  "Ch. 
  t. 
  parva, 
  minus 
  tereti, 
  cerina 
  seu 
  purpureo-fusca 
  ; 
  anfr. 
  nucl. 
  ii. 
  et. 
  dimidio, 
  valde 
  

   decliviter 
  sitis, 
  marginibus 
  spirae 
  parum 
  excurvatis 
  superantibus 
  ; 
  norm. 
  viii. 
  planatis, 
  

   suturis 
  excavatis 
  ; 
  costis 
  radiantibus 
  circ. 
  xviii. 
  acutis, 
  circa 
  basim 
  prolongatam 
  vix 
  continuis, 
  

   ad 
  suturas 
  valde 
  elevatis, 
  subcuspidatis 
  ; 
  interstitiis 
  latioribus 
  undulatis 
  ; 
  sulcis 
  spiralibus 
  

   creberrimis, 
  altis, 
  in 
  spira 
  circ. 
  x., 
  costas 
  vix 
  secantibus, 
  circa 
  basim 
  impressis 
  ; 
  peritremati 
  

   vix 
  continue, 
  labio 
  distincto 
  ; 
  columella 
  vix 
  torta. 
  

  

  "Long. 
  0.23, 
  long. 
  spir. 
  0.16, 
  lat. 
  0.06, 
  div. 
  25°. 
  

   "Hab. 
  S. 
  Diego 
  ; 
  25 
  dredged 
  in 
  shoal 
  water. 
  Cooper. 
  

  

  "Differs 
  from 
  the 
  figure 
  of 
  Ch. 
  tenuicula 
  (which 
  represents 
  a 
  shell 
  with 
  more 
  numerous 
  

   ribs 
  than 
  the 
  diagnosis) 
  in 
  its 
  more 
  distant 
  ribs 
  with 
  broader 
  interstices 
  ; 
  closer 
  and 
  deeper 
  

   spiral 
  sculpture 
  ; 
  impressed 
  sutures 
  ; 
  and 
  especially 
  by 
  the 
  elegant 
  murication 
  of 
  the 
  tops 
  

   of 
  the 
  ribs, 
  with 
  projecting, 
  curved 
  lines 
  between. 
  This 
  is 
  best 
  seen 
  in 
  the 
  j-oung 
  shells, 
  when 
  

   the 
  ribs 
  are 
  distinct 
  over 
  the 
  base." 
  [Carpenter, 
  1866, 
  p. 
  220, 
  C. 
  subcuspidata] 
  

  

  12" 
  Substitute 
  Carpenter 
  for 
  Gould 
  in 
  author's 
  name 
  (1909, 
  explanation 
  pi. 
  8, 
  fig. 
  14). 
  

   The 
  same 
  figure 
  is 
  in 
  Arnold 
  (1903, 
  PI. 
  II, 
  figs. 
  2, 
  2a 
  labelled 
  type) 
  ; 
  also 
  indicated 
  type 
  in 
  

   Dall 
  and 
  Bartsch 
  (1909, 
  p. 
  93) 
  and 
  Bartsch 
  (1912, 
  p. 
  321). 
  

  

  