﻿AMPHINEURA 
  275 
  

  

  writer 
  chooses 
  the 
  one 
  figured 
  herein 
  as 
  the 
  lectotype, 
  with 
  the 
  remaining 
  three 
  Rcdpath 
  

   Museum 
  specimens 
  and 
  the 
  U. 
  S. 
  National 
  Museum 
  specimen 
  as 
  paratypes. 
  The 
  U. 
  S. 
  Na- 
  

   tional 
  Museum 
  specimen 
  is 
  labelled 
  "type 
  San 
  Pedro 
  Cooper." 
  

  

  The 
  photographs 
  included 
  of 
  the 
  Redpath 
  Museum 
  specimen 
  have 
  been 
  taken 
  w^ith 
  the 
  

   specimens 
  blown 
  with 
  ammonium 
  chloride 
  to 
  bring 
  out 
  the 
  details 
  of 
  sculpture; 
  therefore 
  

   the 
  flecked 
  coloration 
  does 
  not 
  show. 
  

  

  Types. 
  — 
  Lectotype: 
  Redpath 
  Museum, 
  no. 
  25 
  (figured 
  herein); 
  paratypes: 
  Redpath 
  Mu- 
  

   seum, 
  no. 
  25 
  (three 
  specimens) 
  ; 
  U. 
  S. 
  National 
  Museum, 
  no. 
  19471 
  (2 
  plates 
  figured 
  herein) 
  

  

  Distribution. 
  — 
  Monterey, 
  California 
  (type) 
  ; 
  Prince 
  of 
  Wales 
  Island, 
  Alaska 
  to 
  San 
  

   Pedro, 
  California 
  (Dall) 
  

  

  Ischnochiton 
  (Lepidozona) 
  retiporosus 
  (Carpenter) 
  

   (PI. 
  30, 
  fig. 
  7; 
  PI. 
  35, 
  figs. 
  4, 
  5) 
  

  

  Ischnochiton 
  {Trachydernwti) 
  retiporosus 
  Carpenter, 
  1864b, 
  p. 
  603, 
  649; 
  Reprint, 
  1872, 
  

   p. 
  89, 
  135 
  ; 
  1865, 
  Acad. 
  Nat. 
  Sci. 
  Philadelphia, 
  Proc, 
  vol. 
  17, 
  p. 
  59 
  

  

  Trachydermon 
  retiporosus 
  (Carpenter), 
  Cooper, 
  1867, 
  Geog. 
  Cat. 
  Moll., 
  Geol. 
  Sur. 
  Cali- 
  

   fornia, 
  p. 
  22 
  

  

  Ischnochiton 
  retiporosus 
  Carpenter, 
  Pilsbry, 
  1892, 
  Man. 
  Conch., 
  vol. 
  XIV, 
  p. 
  75 
  ; 
  1893, 
  

   vol. 
  XV, 
  p. 
  77, 
  pi. 
  16, 
  figs. 
  47 
  type, 
  50-53; 
  Dall, 
  1921, 
  p. 
  191 
  ; 
  Oldroyd, 
  1924, 
  Pub. 
  Puget 
  

   Sound 
  Biol. 
  Station, 
  vol. 
  4, 
  p. 
  190 
  ; 
  1927, 
  vol. 
  II, 
  pt. 
  Ill, 
  p. 
  272 
  

  

  Isclinochiton 
  {Lepidozona) 
  retiporosus 
  (Carpenter), 
  Berry, 
  1917, 
  California 
  Acad. 
  Sci., 
  

   Proc, 
  ser. 
  4, 
  vol. 
  VII, 
  p. 
  235; 
  Burch, 
  1947, 
  no. 
  66, 
  p. 
  18; 
  Smith 
  and 
  Gordon, 
  1948, 
  

   California 
  Acad. 
  Sci., 
  Proc, 
  ser. 
  4, 
  vol. 
  XXVI, 
  p. 
  208 
  

  

  "... 
  : 
  mantle-scales 
  very 
  small, 
  close, 
  smooth. 
  Sp. 
  like 
  scrobiculatus, 
  central 
  pattern 
  in 
  

  

  network, 
  2-6 
  side 
  ribs. 
  [Carpenter, 
  1864b, 
  p. 
  649] 
  

  

  "I.t. 
  parva, 
  subelongata, 
  cinerea, 
  valde 
  elevata, 
  jugo 
  arcuato; 
  valvis 
  subquadratis, 
  apicibus 
  

   celatis, 
  marginibus 
  suturalibus 
  intus 
  reglicatis 
  ; 
  areis 
  lateralibus 
  parum 
  definitis, 
  costulis 
  iii-vi. 
  

   obsoletis, 
  rotundatis, 
  hue 
  et 
  illuc 
  granis 
  acutis, 
  expressis, 
  instructis 
  ; 
  areis 
  centralibus 
  omnino 
  

   scrobiculatis, 
  interstitiis 
  parvis, 
  alte 
  punctatis 
  ; 
  valvis 
  terminalibus 
  costulis 
  crebris, 
  angustis, 
  

   acutioribus 
  ; 
  mucrone 
  parum 
  conspicuo, 
  antrorsum 
  sito 
  : 
  intus, 
  sinu 
  suturali 
  lato 
  ; 
  laminis, 
  

   utroque 
  latere 
  semel, 
  valvis 
  terminalibus 
  circ. 
  XII 
  incisis 
  ; 
  limbo 
  pallii 
  granuloso, 
  granulis 
  

   confertis, 
  minimis, 
  vix 
  elongatis, 
  vix 
  regularibus, 
  baud 
  sculptis. 
  Long. 
  .44, 
  lat. 
  .28, 
  div. 
  90°. 
  

  

  "Hab. 
  — 
  In 
  sinu 
  Pugetiano 
  specimen 
  unicum 
  legit 
  Kennerley. 
  

  

  "Forma 
  /. 
  interstincto, 
  Gld. 
  et 
  /. 
  scrobiculafo, 
  Midd. 
  convenit 
  ; 
  indole 
  sculpturae 
  differt." 
  

   [Carpenter, 
  1865, 
  p. 
  59] 
  

  

  Pilsbry 
  (1892) 
  presented 
  a 
  translation 
  of 
  Carpenter's 
  (1865) 
  Latin 
  description. 
  He 
  later 
  

   (1893) 
  included 
  a 
  sketch 
  (Fig. 
  47) 
  of 
  part 
  of 
  one 
  plate 
  of 
  the 
  type 
  and 
  added 
  a 
  detailed 
  

   description 
  of 
  the 
  species. 
  

  

  In 
  the 
  Carpenter 
  Collection 
  in 
  the 
  Redpath 
  Museum 
  there 
  is 
  a 
  mounted 
  specimen 
  labelled 
  

   by 
  Carpenter 
  "Ischnochiton 
  subexpressus 
  Cpr. 
  type 
  = 
  scabricostatus 
  Cooper 
  518a 
  20 
  fms. 
  

   Catalina 
  Is." 
  This 
  is 
  a 
  manuscript 
  name 
  of 
  Carpenter, 
  although 
  it 
  is 
  not 
  so 
  indicated 
  on 
  the 
  

   label. 
  A 
  photograph 
  of 
  the 
  shell 
  is 
  included 
  herein, 
  so 
  that 
  the 
  record 
  may 
  be 
  clear. 
  The 
  

   specimen 
  is 
  /. 
  retiporosus 
  Carpenter 
  as 
  may 
  be 
  seen 
  by 
  comparison 
  of 
  Pilsbry 
  (1893, 
  pi. 
  16, 
  

   fig. 
  47) 
  and 
  this 
  report 
  (pi. 
  30, 
  fig. 
  7). 
  The 
  Redpath 
  Museum 
  specimen 
  has 
  been 
  coated 
  with 
  

   ammonium 
  chloride 
  to 
  bring 
  out 
  details 
  of 
  sculpture, 
  but 
  this 
  method 
  obliterates 
  coloration. 
  

  

  The 
  note 
  on 
  the 
  label, 
  " 
  = 
  scabricostatus 
  Cooper 
  518a," 
  has 
  not 
  been 
  explained. 
  The 
  pub- 
  

   lished 
  number 
  of 
  /. 
  scabricostatus 
  is 
  "1071c" 
  (Cooper's 
  number, 
  California 
  Geological 
  Sur- 
  

   vey) 
  ; 
  518a 
  was 
  the 
  number 
  of 
  "Trachydermon 
  gothicus" 
  (Carpenter, 
  1866a, 
  p. 
  212). 
  

  

  Holotype.—U. 
  S. 
  National 
  Museum, 
  no. 
  4499 
  (No. 
  in 
  Pilsbry, 
  14917) 
  

  

  Distribution. 
  — 
  Puget 
  Sound, 
  Washington 
  (type) 
  ; 
  Victoria, 
  British 
  Columbia, 
  to 
  San 
  

   Pedro, 
  California 
  (Dall) 
  

  

  Ischnochiton 
  (Lepidozona) 
  serratus 
  Carpenter 
  

   (PL 
  2,2, 
  fig. 
  5) 
  

  

  Ischnochiton 
  serratus 
  Carpenter, 
  1864b, 
  p. 
  618; 
  Reprint, 
  1872, 
  p. 
  104; 
  1864, 
  Ann. 
  Mag. 
  Nat. 
  

   Hist., 
  ser. 
  3, 
  vol. 
  XIII, 
  p. 
  315; 
  Reprint. 
  1872. 
  p. 
  213; 
  Pilsbry, 
  1892. 
  Man. 
  Conch., 
  vol. 
  

   XIV, 
  p. 
  122; 
  1893. 
  Man. 
  Conch., 
  vol. 
  XV, 
  p. 
  78, 
  pi. 
  16, 
  figs. 
  42-46; 
  Dall, 
  1921, 
  p. 
  192; 
  

   Oldroyd, 
  1927. 
  vol. 
  II, 
  pt. 
  Ill, 
  p. 
  278; 
  Burch, 
  1947, 
  no. 
  66, 
  p. 
  18 
  subgenus 
  Lepidozona 
  

  

  