﻿PELECYPODA 
  

  

  99 
  

  

  Psephidia 
  salmonea 
  (Carpenter) 
  

   (PI. 
  11, 
  figs. 
  6-12) 
  

  

  Pscphis 
  salmonea 
  Carpenter, 
  1864b, 
  p. 
  539, 
  611, 
  641; 
  Reprint, 
  1872, 
  p. 
  25, 
  97. 
  127; 
  1866, 
  

  

  Feb., 
  California 
  Acad. 
  Sci., 
  Proc, 
  vol. 
  III. 
  p. 
  209; 
  Cooper, 
  1867, 
  Geog. 
  Cat. 
  Moll., 
  Geol. 
  

  

  Sur. 
  California, 
  p. 
  7; 
  Arnold, 
  1903. 
  p. 
  152; 
  D.all, 
  1902, 
  U. 
  S. 
  Nat. 
  Mus., 
  Proc., 
  vol. 
  26, 
  

  

  no. 
  1312, 
  p. 
  408, 
  nepionic 
  young 
  of 
  Tivcla 
  

   ? 
  Psephidia 
  salmonea 
  (Carpenter), 
  D.all, 
  1921, 
  p. 
  44; 
  Oldroyd, 
  1924, 
  p. 
  162 
  [not 
  questioned] 
  

   Psephidia 
  ? 
  salmonea 
  (Carpenter). 
  Grant 
  and 
  Gale, 
  1931, 
  p. 
  338, 
  see 
  for 
  synonymy 
  

   Psephidia 
  salmonea 
  (Carpenter), 
  Keen, 
  1937, 
  p. 
  24; 
  Burch, 
  1944, 
  no. 
  42, 
  p. 
  16; 
  1945, 
  no. 
  45, 
  

  

  p. 
  16 
  

  

  "Pscphis 
  salmonea, 
  n.s. 
  S. 
  Diego, 
  Cat. 
  Is., 
  30^0 
  fm. 
  ; 
  rare." 
  [Carpenter, 
  1864b, 
  p. 
  611] 
  

  

  "Psephis 
  salmonea, 
  n.s. 
  Very 
  small, 
  rounded, 
  teeth 
  elongate: 
  salmon-coloured. 
  30-40 
  fm. 
  

   r. 
  Cp." 
  [Carpenter, 
  1864b, 
  p. 
  641] 
  

  

  "Psephis 
  sahnonea, 
  Cpr., 
  n.s. 
  State 
  Collection, 
  no. 
  1068. 
  

  

  "Ps. 
  t. 
  Parva, 
  .subinflata, 
  subaequilaterali, 
  subtrigona 
  ; 
  colore 
  salmoneo; 
  extus 
  nitida, 
  

   minutissime 
  et 
  crebcrrime 
  concentrice 
  striata 
  ; 
  margine 
  ventrali 
  excurvato 
  ; 
  dorsalibus 
  antico 
  

   et 
  postico 
  subrectis 
  : 
  intus, 
  dent. 
  card, 
  iii.-iii., 
  quorum 
  utraque 
  valva 
  anticus 
  porrectus, 
  quasi 
  

   lateralis, 
  centrales 
  parvi 
  ; 
  v. 
  dextr. 
  dente 
  postico 
  in 
  marginem 
  sulcatum 
  decurrente 
  ; 
  cicatr. 
  

   adduct. 
  satis 
  conspicuis, 
  subrotundatis 
  ; 
  linea 
  pallii 
  satis 
  interna, 
  vix 
  obsolete 
  sinulata. 
  

  

  "Long. 
  0.12, 
  lat. 
  0.11, 
  alt. 
  0.06. 
  

  

  "Hab. 
  Catalina 
  Island, 
  30—40 
  fm., 
  rare 
  ; 
  Cooper. 
  

  

  "Placed 
  under 
  Psephis 
  by 
  analogy 
  ; 
  whether 
  the 
  animal 
  be 
  ovoviviparus 
  has 
  not 
  yet 
  been 
  

   ascertained." 
  [Carpenter, 
  1866a, 
  p. 
  2()9] 
  

  

  The 
  syntypes 
  of 
  this 
  species 
  consist 
  of 
  two 
  suites, 
  one 
  in 
  the 
  Redpath 
  Aluseum, 
  ^IcGill 
  

   University, 
  and 
  the 
  other 
  at 
  the 
  U. 
  S. 
  National 
  Museum. 
  The 
  specimens 
  in 
  the 
  Redpath 
  

   Museum 
  consist 
  of 
  five 
  specimens 
  on 
  Carpenter's 
  original 
  glass 
  mount 
  and 
  labelled 
  in 
  

   Carpenter's 
  handwriting, 
  "Type. 
  Catalina 
  Is. 
  30 
  fms. 
  Cooper." 
  These 
  are 
  the 
  specimens 
  which 
  

   are 
  mentioned 
  in 
  the 
  original 
  description. 
  The 
  U. 
  S. 
  National 
  Museum 
  specimens, 
  a 
  syntype 
  

   consisting 
  of 
  a 
  double 
  specimen, 
  is 
  also 
  on 
  a 
  Carpenter 
  original 
  glass 
  mount 
  and 
  labelled, 
  

   "type 
  S. 
  Diego 
  Cooper 
  Cp. 
  1068." 
  These 
  are 
  the 
  specimens 
  which 
  are 
  mentioned 
  first 
  by 
  

   Carpenter 
  (1864b, 
  p. 
  611). 
  The 
  label 
  "Cooper 
  no. 
  1068" 
  is 
  that 
  given 
  as 
  of 
  the 
  State 
  Col- 
  

   lection 
  in 
  his 
  original 
  description. 
  

  

  Oldroyd, 
  followed 
  by 
  Grant 
  and 
  Gale, 
  gave 
  the 
  type 
  depository 
  and 
  t.vpe 
  locality 
  incor- 
  

   rectly. 
  

  

  Syntypes. 
  — 
  Redpath 
  Museum, 
  no. 
  115; 
  U. 
  S. 
  National 
  Museum, 
  no. 
  15578 
  (Cp. 
  1068) 
  

  

  Distribution. 
  — 
  Recent. 
  Catalina 
  Island, 
  California. 
  30 
  fathoms, 
  (type) 
  ; 
  Farallon 
  Islands, 
  

   California, 
  to 
  San 
  Martin 
  Island, 
  Lower 
  California 
  (Burch). 
  Pleistocene 
  (Arnold, 
  1903; 
  

   Cooper 
  in 
  Arnold, 
  1903). 
  Pliocene 
  (Arnold, 
  1903) 
  

  

  "Tapes 
  gracilis" 
  Gould 
  

  

  Tapes 
  gracilis 
  Gould, 
  1856, 
  United 
  States 
  Pacific 
  R. 
  R. 
  Repts.. 
  vol. 
  5, 
  p. 
  333. 
  pi. 
  19, 
  fig. 
  20; 
  

   (jOuld 
  and 
  Carpenter, 
  1856, 
  Zool. 
  Soc. 
  London, 
  Proc, 
  p. 
  200. 
  

  

  This 
  species 
  has 
  been 
  identified 
  by 
  Dall 
  as 
  the 
  young 
  of 
  Saxidomus 
  nuttallii 
  Conrad, 
  1837. 
  

   Carpenter 
  stated 
  (1864b) 
  that 
  the 
  type 
  of 
  T. 
  gracilis 
  Gould 
  was 
  not 
  found 
  at 
  the 
  Smithsonian 
  

   Institution. 
  

  

  Additional 
  References 
  : 
  — 
  

  

  Tapes 
  gracilis 
  Gould, 
  Carpenter, 
  1857, 
  Rept. 
  British 
  Assoc. 
  Adv. 
  Sci. 
  1856, 
  p. 
  227, 
  284, 
  306, 
  

  

  352; 
  Carpenter, 
  1864b, 
  p. 
  592; 
  Reprint, 
  1872, 
  p. 
  78 
  

   Saxidomus 
  gracilis 
  Gould, 
  Cooper, 
  1867, 
  Geog. 
  Cat. 
  Moll., 
  Geol. 
  Sur. 
  California, 
  p. 
  8 
  

  

  (^ 
  arafits 
  Gld. 
  ?) 
  

   Saxidomus 
  arafus 
  Gould, 
  Williamson, 
  1892, 
  U. 
  S. 
  Nat. 
  Mus., 
  Proc, 
  vol. 
  15, 
  no. 
  898, 
  p. 
  189 
  

   Saxidomus 
  nuttallii 
  Conrad, 
  Gr.axt 
  and 
  G.\le. 
  1931, 
  p. 
  341 
  in 
  part 
  

  

  "Venus 
  (Chione) 
  excavata" 
  Carpenter 
  

  

  (PL 
  11, 
  fig. 
  13) 
  

  

  Chione 
  undatella 
  Sowerby, 
  Young 
  

  

  Venus 
  (Chione) 
  excavata 
  C.\rpenter, 
  1856, 
  Zool. 
  Soc. 
  London, 
  Proc, 
  p. 
  216; 
  Dall, 
  1902, 
  

   U. 
  S. 
  Nat. 
  Mus., 
  Proc, 
  vol. 
  26, 
  no. 
  1312, 
  p. 
  392 
  

  

  