﻿170 
  MARINE 
  MOLLUSCA 
  DESCRIBED 
  BY 
  P. 
  P. 
  CARPENTER 
  

  

  43 
  mm. 
  length 
  and 
  15 
  mm., 
  greatest 
  diameter. 
  Because 
  of 
  the 
  discrepancy 
  the 
  writer 
  has 
  not 
  

   included 
  the 
  illustration 
  of 
  the 
  shell. 
  The 
  shell 
  is 
  of 
  the 
  T. 
  cooperi 
  stock. 
  It 
  has 
  a 
  subquadrate 
  

   aperture 
  as 
  described 
  by 
  Carpenter 
  for 
  both 
  T. 
  cooperi 
  and 
  T. 
  jezvetti. 
  

  

  A 
  specimen 
  of 
  Turritella 
  (no. 
  15834) 
  in 
  the 
  Crooke 
  Collection, 
  American 
  Museum 
  of 
  Na- 
  

   tural 
  History, 
  is 
  labelled 
  "T. 
  jezvetti 
  Carp. 
  California." 
  Although 
  the 
  Crooke 
  Collection 
  was 
  

   acquired 
  probably 
  earlier 
  than 
  1894 
  (John 
  C. 
  Armstrong, 
  July 
  17, 
  1951, 
  personal 
  communi- 
  

   cation) 
  there 
  is 
  no 
  evidence 
  that 
  Carpenter 
  identified 
  this 
  shell, 
  and 
  the 
  locality 
  is 
  not 
  ade- 
  

   quate. 
  An 
  examination 
  of 
  the 
  shell 
  shows 
  it 
  to 
  be 
  the 
  apical 
  wliorls 
  of 
  T. 
  cooperi 
  Carpenter. 
  

   The 
  specimen 
  is 
  a 
  fossil. 
  

  

  Two 
  suites 
  of 
  specimens 
  of 
  two 
  each 
  arc 
  in 
  the 
  Museum 
  of 
  Comparative 
  Zoology, 
  Cam- 
  

   bridge, 
  Massachusetts. 
  

  

  One 
  set 
  (no. 
  29399) 
  has 
  a 
  printed 
  label. 
  "Turritella 
  /ctcc//// 
  Cpr. 
  Santa 
  Barbara; 
  (Jewctt 
  

   Coll., 
  fossill?) 
  549 
  California 
  Geol. 
  Survey 
  Jewctt." 
  These 
  two 
  specimens 
  are 
  fossil 
  and 
  most 
  

   certainly 
  from 
  a 
  lot 
  of 
  shells 
  similar 
  to 
  those 
  described 
  by 
  Durham, 
  which 
  are 
  at 
  present 
  at 
  

   the 
  University 
  of 
  California. 
  The 
  specimens 
  are 
  presumably 
  tliose 
  sent 
  out 
  by 
  Cooper, 
  as 
  

   Cooper 
  was 
  employed 
  by 
  the 
  California 
  Geological 
  Survey. 
  This 
  suite, 
  as 
  w-ell 
  as 
  the 
  follow- 
  

   ing 
  second 
  set, 
  is 
  at 
  present 
  labelled 
  "cotypes," 
  but 
  since 
  the 
  two 
  sets 
  probably 
  do 
  not 
  repre- 
  

   sent 
  original 
  Jewett 
  specimens 
  identified 
  by 
  Carpenter 
  they 
  cannot 
  qualify 
  as 
  "cotypes." 
  

  

  The 
  second 
  set 
  (no. 
  142835) 
  consists 
  of 
  two 
  Recent 
  shells 
  which 
  have 
  the 
  original 
  label. 
  

   "Turritella 
  Jewettii 
  Cpr. 
  Sta. 
  Barbara, 
  Cal. 
  Cooper." 
  

  

  One 
  shell 
  of 
  the 
  first 
  suite 
  is 
  too 
  badly 
  worn 
  for 
  accurate 
  identification. 
  The 
  remaining 
  

   three 
  specimens 
  are 
  what 
  is 
  being 
  identified 
  as 
  T. 
  cooperi 
  and 
  equal 
  specifically 
  the 
  other 
  spe- 
  

   cimens 
  enumerated 
  under 
  this 
  discussion. 
  All 
  except 
  the 
  Redpath 
  Museum 
  specimen 
  are 
  apical 
  

   whorls 
  and 
  are 
  equivalent 
  to 
  the 
  specimen 
  figured 
  by 
  Merriam 
  (pi. 
  33, 
  fig. 
  1). 
  

  

  If 
  T. 
  cooperi 
  and 
  T. 
  jezvetti 
  prove 
  to 
  be 
  conspecific, 
  T. 
  cooperi 
  has 
  priority. 
  Both 
  names 
  

   were 
  first 
  briefly 
  described 
  by 
  Carpenter 
  (1864b, 
  p. 
  655). 
  T. 
  cooperi 
  is 
  listed 
  first 
  on 
  that 
  

   page. 
  Carpenter's 
  first 
  descriptions 
  (1864) 
  of 
  both 
  consist 
  of 
  only 
  one 
  line, 
  which 
  is 
  not 
  ade- 
  

   quate 
  to 
  validate 
  the 
  name 
  of 
  the 
  species 
  as 
  of 
  that 
  date. 
  T. 
  cooperi 
  was 
  described 
  in 
  February 
  

   (1866a), 
  and 
  T. 
  jezvetti 
  in 
  April 
  (1866b). 
  Merriam 
  failed 
  to 
  include 
  the 
  1866a 
  reference 
  in 
  

   the 
  synonymy 
  of 
  T. 
  cooperi. 
  That 
  is 
  the 
  description 
  which 
  enumerates 
  characters 
  sufficiently 
  

   for 
  identification. 
  

  

  Holotype. 
  — 
  Not 
  found 
  

  

  Distribution. 
  — 
  Pleistocene. 
  Santa 
  Barbara, 
  California 
  (type) 
  

  

  Genus 
  Tachyrynchus'' 
  Morcli. 
  1868 
  

   (Tachyrhynchii.'! 
  Morch, 
  1875) 
  

   Tachyrynchus 
  Morch, 
  1868, 
  Amer. 
  Jour. 
  Conch., 
  vol. 
  4. 
  p. 
  46 
  Tachyrynchus 
  not 
  italicized. 
  

   Type 
  species 
  by 
  subsequent 
  designation, 
  Cossmann,"^ 
  1912, 
  Essais 
  Paleoconch. 
  Comp., 
  9 
  liv., 
  

   ' 
  p. 
  110. 
  Turritella 
  lactea 
  Moller, 
  1842, 
  Index 
  Moll. 
  Groenlandica, 
  p. 
  9 
  = 
  Turritella 
  reticu- 
  

   lata 
  MiGiiEi.s 
  AND 
  Adams, 
  1842, 
  Boston 
  Soc. 
  Nat. 
  Hist., 
  vol. 
  IV, 
  Jan., 
  p. 
  50, 
  pi. 
  IV, 
  fig. 
  

   19. 
  Recent. 
  Labrador 
  and 
  the 
  Gulf 
  of 
  St. 
  Lawrence. 
  Clench 
  and 
  Turner, 
  1950, 
  Occ. 
  

   Paper 
  Moll., 
  vol. 
  1, 
  no. 
  15, 
  pi. 
  40, 
  figs. 
  14-15 
  

  

  Tachyrhynchus 
  lacteolum 
  (Carpenter) 
  

  

  (PI. 
  20, 
  fig. 
  5) 
  

  

  Mesalia 
  lacteola 
  Carpenter. 
  1864b, 
  p. 
  603, 
  607, 
  655, 
  680, 
  683; 
  Reprint, 
  1872, 
  p. 
  89, 
  93, 
  141, 
  166, 
  

  

  169; 
  1865, 
  Acad. 
  Nat. 
  Sci. 
  Philadelphia, 
  Proc., 
  vol. 
  17, 
  p. 
  62; 
  Cooper, 
  1867, 
  Geog. 
  Cat. 
  

  

  Moll., 
  Geol. 
  Sur. 
  California, 
  p. 
  28 
  

  

  Turritella 
  reticulata 
  (Mighels 
  and 
  Adams), 
  Trvon, 
  1886, 
  Man. 
  Conch., 
  vol. 
  VIII, 
  p. 
  208 
  in 
  

  

  part 
  not 
  figures, 
  section 
  Turritellopsi.9 
  

   Tach\r\hynchus 
  lacteola 
  (Carpenter) 
  Smith, 
  1915, 
  Ann. 
  Mag. 
  Nat. 
  Hist., 
  8th 
  ser., 
  vol. 
  XV, 
  

   p." 
  376," 
  fig. 
  3 
  

  

  ''■'Morch 
  (1875, 
  p. 
  127) 
  corrected 
  the 
  spelling 
  to 
  Tacliyrhyuchus. 
  The 
  name 
  is 
  derived 
  from 
  

   the 
  Greek 
  rhynchos 
  (n.) 
  beak, 
  snout. 
  The 
  ending 
  of 
  the 
  specific 
  name 
  is 
  neuter 
  instead 
  of 
  

   either 
  masculine 
  or 
  feminine 
  as 
  often 
  written. 
  {Note: 
  After 
  this 
  paper 
  was 
  submitted 
  for 
  

   publication 
  the 
  International 
  Commission 
  on 
  Zoological 
  Nomenclature, 
  Declaration 
  39, 
  1958, 
  

   reversed 
  its 
  former 
  decision 
  and 
  ruled 
  that 
  such 
  endings 
  are 
  masculine.) 
  

  

  ■'s 
  The 
  designation 
  of 
  Cossmann 
  is 
  3 
  years 
  before 
  that 
  of 
  E. 
  A. 
  Smith 
  (1915, 
  p. 
  373 
  T. 
  

   reticulata 
  Mighels 
  and 
  Adams, 
  1842). 
  The 
  result 
  is 
  the 
  same 
  in 
  both 
  designations. 
  

  

  