﻿AMPHINEURA 
  

  

  273 
  

  

  There 
  are 
  in 
  the 
  Redpath 
  Museum 
  two 
  complete 
  specimens 
  and 
  three 
  separate 
  plates 
  

   which 
  were 
  labelled 
  by 
  Carpenter, 
  "Type 
  La 
  Paz 
  Pease." 
  One 
  of 
  those 
  specimens 
  is 
  figured 
  

   herein. 
  

  

  In 
  the 
  first 
  mention 
  of 
  /. 
  pectinatus 
  Carpenter 
  (1864b, 
  p. 
  612) 
  the 
  specimen 
  was 
  reported 
  

   from 
  Catalina 
  Island. 
  The 
  name 
  in 
  this 
  reference 
  is 
  a 
  nomen 
  nudum. 
  The 
  second 
  brief 
  refer- 
  

   ence 
  (1864b, 
  p. 
  649), 
  quoted 
  above, 
  listed 
  specimens 
  only 
  from 
  Santa 
  Barbara 
  Islands. 
  The 
  

   1866 
  description 
  cited 
  Catalina 
  and 
  Santa 
  Barbara 
  Island. 
  Lower 
  California 
  is 
  not 
  included 
  

   in 
  any 
  of 
  Carpenter's 
  remarks. 
  Therefore, 
  the 
  locality 
  with 
  the 
  type 
  specimens 
  must 
  be 
  in 
  

   error 
  or 
  a 
  misplacement 
  of 
  labels. 
  

  

  As 
  Pilsbry 
  and 
  Berry 
  have 
  pointed 
  out 
  the 
  name 
  /. 
  pectinatus 
  Carpenter 
  is 
  preoccupied. 
  

   A 
  possible 
  substitute 
  name 
  was 
  /. 
  pcctimdatiis 
  Carpenter 
  ms. 
  However, 
  its 
  introduction 
  by 
  

   Pilsbry 
  must 
  date 
  the 
  name 
  from 
  1892 
  by 
  Pilsbry, 
  and 
  it 
  cannot 
  be 
  credited 
  to 
  Carpenter. 
  

   The 
  introduction 
  by 
  Pilsbry 
  is 
  somewhat 
  ambiguous 
  in 
  its 
  manner 
  of 
  connection 
  with 
  /. 
  

   clathratns 
  Reeve, 
  and 
  the 
  writer 
  agrees 
  with 
  Berry 
  that 
  it 
  is 
  not 
  a 
  strict 
  substitute 
  for 
  /. 
  

   pectinatus 
  Carpenter. 
  

  

  Berry 
  (1931) 
  proposed 
  the 
  name 
  /. 
  calijorniensis 
  to 
  cover 
  the 
  "commonest 
  southern 
  

   Californian 
  Lepidocona," 
  but 
  he 
  doubted 
  that 
  it 
  was 
  a 
  substitute 
  for 
  /. 
  pectinatus 
  Carpenter 
  

   (1864; 
  1866). 
  

  

  Even 
  though 
  Carpenter's 
  remarks 
  (1864) 
  are 
  brief, 
  his 
  later 
  description 
  (1866) 
  qualifies 
  

   to 
  validate 
  a 
  specific 
  name. 
  Berry 
  selected 
  a 
  type 
  locality 
  when 
  presenting 
  a 
  new 
  name 
  which 
  

   is 
  not 
  the 
  same 
  as 
  that 
  of 
  /. 
  pectinatus 
  Carpenter. 
  

  

  Unfortunately 
  there 
  is 
  the 
  nonconformity 
  in 
  type 
  locality 
  between 
  the 
  description 
  and 
  the 
  

   label 
  of 
  the 
  type. 
  Hence 
  there 
  is 
  uncertainty 
  that 
  the 
  specimen 
  labelled 
  tyi^e 
  is 
  an 
  authentic 
  

   type. 
  It 
  could 
  be 
  compared 
  with 
  specimens 
  from 
  the 
  northern 
  and 
  southern 
  range 
  of 
  species 
  

   and 
  determined 
  to 
  what 
  it 
  bears 
  the 
  closer 
  resemblance. 
  

  

  The 
  problem 
  of 
  whether 
  /. 
  calijorniensis 
  is 
  a 
  substitute 
  name 
  and 
  whether 
  it 
  is 
  equivalent 
  

   to 
  /. 
  pectinatus 
  Carpenter 
  is 
  still 
  unsettled. 
  Berry 
  (1931) 
  did 
  not 
  give 
  the 
  range 
  of 
  /. 
  cali- 
  

   forniensis. 
  He 
  (1922) 
  specified 
  Monterey 
  to 
  Todos 
  Santos 
  Bay, 
  Lower 
  California, 
  and 
  stated 
  

   that 
  it 
  was 
  found 
  in 
  the 
  Pleistocene 
  of 
  California. 
  

  

  Types. 
  — 
  Syntypes 
  : 
  /. 
  pectinatus 
  Carpenter, 
  Redpath 
  Museum, 
  no. 
  70; 
  holotype 
  : 
  /. 
  cali- 
  

   forniensis 
  Berry, 
  S. 
  S. 
  Berry 
  Collection, 
  no. 
  1699; 
  paratypes 
  : 
  see 
  Berry 
  (1931, 
  p. 
  256). 
  

  

  Distribution. 
  — 
  Catalina 
  Island 
  or 
  Santa 
  Barbara 
  Island, 
  California 
  (type) 
  /. 
  pectinatus 
  

   Carpenter; 
  La 
  Jolla, 
  California 
  (type), 
  /. 
  calijorniensis 
  Berry. 
  

  

  Ischnochiton 
  (Lepidozona) 
  cooperi 
  "Dall" 
  Pilsbry 
  

  

  Ischnochiton 
  cooperi 
  "Cpr.," 
  Dall, 
  1879, 
  U. 
  S. 
  Nat. 
  Mus., 
  Proc, 
  vol. 
  1, 
  p. 
  296, 
  fig. 
  15 
  

   radula; 
  Pilsbry, 
  1892, 
  Man. 
  Conch., 
  vol. 
  XIV, 
  p. 
  127, 
  pi. 
  26, 
  figs. 
  27-30 
  types, 
  section 
  

   Lepidoaona; 
  Dall, 
  1921, 
  p. 
  192 
  section 
  Lepidocona; 
  Oldroyd, 
  1927, 
  vol. 
  II, 
  pt. 
  Ill, 
  p. 
  281 
  

  

  Ischnochiton 
  {Lepidozona) 
  cooperi 
  "Carpenter," 
  Berry, 
  1922, 
  California 
  Acad. 
  Sci.. 
  Proc, 
  

   .ser. 
  4, 
  vol. 
  XI, 
  p. 
  473, 
  pi. 
  XI, 
  figs. 
  1-12; 
  Burch, 
  1947, 
  no. 
  66, 
  p. 
  18; 
  Smith 
  and 
  Gordon, 
  

   1948, 
  California 
  Acad. 
  Sci., 
  Proc, 
  ser. 
  4, 
  vol. 
  XXVI, 
  p. 
  207 
  author 
  "Dall" 
  

  

  The 
  autliority 
  for 
  this 
  species 
  is 
  in 
  the 
  same 
  category 
  as 
  /. 
  conspicuus. 
  The 
  radula 
  only 
  

   was 
  described 
  and 
  figured 
  by 
  Dall 
  (1879). 
  Pilsbry 
  also 
  utilized 
  Carpenter's 
  manuscript 
  name 
  

   (1892), 
  but 
  he 
  composed 
  his 
  own 
  description 
  and 
  used 
  specimens 
  from 
  the 
  collections 
  of 
  the 
  

   Academy 
  of 
  Natural 
  Sciences. 
  The 
  specific 
  name, 
  if 
  Dall's 
  description 
  is 
  not 
  validated, 
  should 
  

   be 
  credited 
  to 
  Pilsbry 
  as 
  has 
  usually 
  been 
  done. 
  Smith 
  and 
  Gordon 
  date 
  the 
  specific 
  name 
  

   from 
  Dall. 
  Apparently 
  Dall 
  used 
  Carpenter's 
  manuscript 
  notes 
  in 
  identifying 
  the 
  species. 
  No 
  

   specimen 
  has 
  been 
  found 
  which 
  could 
  be 
  identified 
  as 
  a 
  type 
  for 
  Dall's 
  description. 
  

  

  Types. 
  — 
  Dall, 
  not 
  found 
  ; 
  syntypes 
  of 
  Pilsbry, 
  Academy 
  of 
  Natural 
  Sciences, 
  Philadelphia, 
  

   no. 
  118659 
  

  

  Distribution. 
  — 
  Dall, 
  type 
  locality 
  unknown 
  ; 
  Recent. 
  Bolinas, 
  north 
  of 
  San 
  Francisco, 
  

   California 
  (type, 
  Pilsbry) 
  ; 
  Mendocino 
  County, 
  to 
  Catalina 
  Island, 
  California 
  (Dall). 
  Pleis- 
  

   tocene. 
  California 
  (Chace 
  and 
  Chace, 
  1919; 
  Berry). 
  

  

  