﻿104 
  MARINE 
  MOLLUSCA 
  DESCRIBED 
  BY 
  1'. 
  T. 
  CARPENTER 
  

  

  the 
  foundation 
  for 
  the 
  original 
  conception 
  of 
  the 
  species. 
  It 
  does 
  not 
  seem 
  wise 
  to 
  follow 
  Dall 
  

   in 
  defining 
  new 
  types 
  for 
  the 
  species 
  when 
  Carpenter's 
  were 
  in 
  existence 
  and 
  available 
  to 
  

   Dall. 
  (See 
  discussion 
  in 
  the 
  introduction 
  to 
  this 
  paper 
  on 
  the 
  practice 
  of 
  choosing 
  new 
  types 
  

   for 
  species 
  renamed.) 
  In 
  the 
  case 
  of 
  this 
  species 
  Dall 
  did 
  not 
  choose 
  a 
  type 
  for 
  his 
  new 
  name 
  

   from 
  the 
  type 
  locality 
  of 
  Carpenter's 
  species. 
  Hence 
  there 
  is 
  a 
  double 
  opportunity 
  for 
  misiden- 
  

   tifying 
  the 
  original 
  species. 
  The 
  remaining 
  types 
  of 
  "A." 
  obtusa 
  Carpenter 
  are 
  those 
  men- 
  

   tioned 
  second 
  by 
  Carpenter 
  from 
  San 
  Pedro. 
  Dall 
  chose 
  a 
  Lower 
  California 
  shell 
  for 
  the 
  

   holotype. 
  

  

  Interpreting 
  the 
  renaming 
  of 
  "A." 
  obtusa 
  as 
  strictly 
  a 
  nomcnclatural 
  technicality, 
  the 
  

   writer 
  retains 
  Carpenter's 
  types'^ 
  for 
  the 
  species 
  as 
  renamed, 
  and 
  the 
  writer 
  disregards 
  Dall's 
  

   1900 
  redesignation. 
  

  

  In 
  the 
  case 
  of 
  a 
  name 
  merely 
  replacing 
  a 
  preoccupied 
  term, 
  if 
  the 
  original 
  types 
  have 
  been 
  

   lost 
  neotypes 
  would 
  properly 
  be 
  designated. 
  In 
  such 
  case 
  it 
  would 
  seem 
  fitting 
  that 
  they 
  

   should 
  be 
  from 
  the 
  original 
  locality 
  of 
  the 
  species. 
  (See 
  Copenhagen 
  Decisions 
  on 
  Zool. 
  

   Nomen., 
  Aug. 
  1953, 
  p. 
  28-32.) 
  

  

  This 
  species 
  has 
  coarser 
  concentric 
  striae 
  than 
  T. 
  carpcnteri 
  Dall 
  (7". 
  varicgata 
  Car- 
  

   penter). 
  

  

  The 
  double 
  specimen 
  (type 
  no. 
  19429) 
  has 
  the 
  valves 
  intact. 
  The 
  valves 
  were 
  not 
  separated 
  

   for 
  photographing, 
  lest 
  the 
  hinges 
  be 
  broken. 
  The 
  photographs 
  do 
  not 
  include 
  tliat 
  of 
  the 
  

   hinge. 
  

  

  Syntypcs. 
  — 
  U. 
  S. 
  National 
  Museum, 
  no. 
  19429 
  (one 
  double 
  and 
  fragments 
  of 
  two 
  single 
  

   valves) 
  

  

  Distribution. 
  — 
  Recent. 
  San 
  Pedro, 
  California 
  (Cooper, 
  type) 
  ; 
  Lituya 
  Bay, 
  Alaska, 
  to 
  the 
  

   Gulf 
  of 
  California 
  (Dall). 
  Pleistocene. 
  (See 
  Grant 
  and 
  Gale, 
  1931) 
  

  

  Subgenus 
  Moerella 
  Fischer, 
  1887 
  

   Morrrlla 
  Fischek, 
  1887, 
  Man. 
  de 
  Conchy!., 
  p. 
  1147. 
  Morra 
  H. 
  Axn 
  A. 
  .^i)A>fs, 
  [1856] 
  

  

  1858, 
  not 
  Macra 
  Leach, 
  1814, 
  Donacilla 
  C^ray, 
  1851, 
  not 
  Lamarck, 
  1819, 
  see 
  Neave, 
  

  

  1939-1940 
  for 
  references 
  

   Type 
  species 
  by 
  monotypy, 
  Tcllina 
  donacina 
  Linnaeus, 
  1758, 
  Syst. 
  Nat., 
  10th 
  ed., 
  p. 
  676. 
  

  

  Recent. 
  Europe. 
  Reeve, 
  1866, 
  Conch. 
  Icon., 
  vol. 
  17, 
  Tellina. 
  pi. 
  X, 
  fig. 
  43 
  ; 
  Bucquoy, 
  

  

  Dautzenberg, 
  and 
  Doi.lfus, 
  ]\To11. 
  Marins 
  du 
  Roussilon, 
  1898, 
  tome 
  II, 
  pi. 
  91, 
  figs. 
  13, 
  

  

  14, 
  vars. 
  figs. 
  15-19 
  

  

  Tellina 
  (Moerella) 
  carpenteri 
  Dall 
  

  

  (PI. 
  13, 
  fig. 
  12-16) 
  

  

  Anqnlus 
  varicgatus 
  Carpenter, 
  1864b, 
  Aug., 
  p. 
  611, 
  627, 
  639; 
  Reprint, 
  1872, 
  p. 
  97, 
  113, 
  125; 
  

  

  'l864b. 
  Dec, 
  Ann. 
  Mag. 
  Nat. 
  Hist., 
  ser. 
  3, 
  vol. 
  XIV, 
  p. 
  423; 
  Reprint, 
  1872, 
  p. 
  235. 
  Not 
  

  

  Tellina 
  I'aricgata 
  Gmei.in, 
  1791, 
  Syst. 
  Nat., 
  p. 
  3237 
  

   Mcra 
  varicgata 
  (Carpenter), 
  Cooper, 
  1867, 
  Geog. 
  Cat. 
  Moll., 
  Geol. 
  Sur. 
  California, 
  p. 
  5 
  

   Tellina 
  (Angulus) 
  variegata 
  (Carpenter), 
  Tryon, 
  1869, 
  Cat. 
  Tellinidae, 
  Acad. 
  Nat. 
  Sci. 
  

  

  Philadelphia, 
  p. 
  95 
  

   Tellina 
  ( 
  Anquhis) 
  carpenteri 
  Dall, 
  1900, 
  U. 
  S. 
  Nat. 
  Mus., 
  Proc., 
  vol. 
  23, 
  no. 
  1210, 
  p. 
  303, 
  

  

  320 
  new 
  name; 
  1908, 
  Mus. 
  Comp. 
  Zool.. 
  Bull., 
  vol. 
  XLIII, 
  no. 
  6, 
  p. 
  421; 
  1921, 
  p. 
  45; 
  

  

  Oldroyd, 
  1924b, 
  p. 
  166, 
  not 
  pi. 
  44, 
  figs. 
  10a, 
  10b 
  same 
  as 
  Packard, 
  1918, 
  Univ. 
  California 
  

  

  Pub. 
  Zool., 
  vol. 
  14, 
  no. 
  2, 
  pi. 
  25. 
  figs. 
  10a, 
  10b. 
  pi. 
  29, 
  fig. 
  2; 
  Oldroyd. 
  1924, 
  Pub. 
  Puget 
  

  

  Sound 
  Biol. 
  Station, 
  vol. 
  4, 
  p. 
  51, 
  not 
  pi. 
  41, 
  figs. 
  10a, 
  10b; 
  Keen, 
  1937, 
  p. 
  26; 
  Burcii, 
  

  

  1943. 
  no. 
  25. 
  p. 
  12; 
  1945. 
  no. 
  43, 
  p. 
  5, 
  7; 
  no. 
  46, 
  back 
  page 
  

   Not 
  Tcllina 
  carpenteri 
  Dall. 
  Packard. 
  1918, 
  Univ. 
  California 
  Pub. 
  Zool., 
  vol. 
  14, 
  p. 
  276, 
  pi. 
  

  

  25, 
  figs. 
  10a. 
  10b, 
  pi. 
  46; 
  Oldroyd, 
  1924b, 
  pi. 
  44, 
  figs. 
  10a, 
  10b; 
  Oldroyd, 
  1924, 
  Pub. 
  Puget 
  

  

  Sound 
  Biol. 
  Station 
  vol. 
  4, 
  pi. 
  41, 
  figs. 
  10a, 
  10b 
  same 
  as 
  Packard 
  pi. 
  25, 
  figs. 
  10a, 
  10b 
  = 
  

  

  T. 
  (Moerella) 
  arcnica 
  Hertlein 
  and 
  Strong, 
  1949, 
  Zoologica, 
  New 
  York 
  Zool. 
  Soc., 
  

  

  vol. 
  34, 
  pt. 
  2, 
  p. 
  68 
  

  

  "Angulus 
  varicgatus, 
  n.s. 
  Mont., 
  Cat. 
  Is., 
  20-60 
  fm. 
  ; 
  rare. 
  (Neeah 
  Bay, 
  Sivan.) 
  [Car- 
  

   penter 
  1864b, 
  p. 
  6111 
  

  

  "Angulus 
  varieqatus. 
  n.s. 
  Shape 
  of 
  obtusus: 
  no 
  callus, 
  rayed 
  with 
  pink 
  and 
  yellow. 
  20-60 
  

  

  fm. 
  r. 
  Cp." 
  [Carpenter, 
  1864b, 
  Aug., 
  p. 
  639] 
  

  

  ^1 
  New 
  types 
  designated 
  l)y 
  Dall 
  ( 
  lOOOc, 
  p. 
  320) 
  V. 
  S. 
  National 
  Museum, 
  no. 
  42865a, 
  have 
  

   been 
  copied 
  by 
  later 
  authors 
  (Oldroyd; 
  Grant 
  and 
  Gale) 
  

  

  