﻿GASTROPOnA 
  215 
  

  

  A. 
  insciilf'tits 
  cuplcura 
  Dall 
  (1917, 
  p. 
  576) 
  is 
  not 
  regarded 
  by 
  workers 
  as 
  of 
  subspecific 
  

   rank 
  (Grant 
  and 
  Gale, 
  1931, 
  p. 
  677; 
  Burch, 
  1945, 
  no. 
  57, 
  p. 
  6). 
  

  

  Type. 
  — 
  Not 
  found 
  

  

  Distribution. 
  — 
  Recent. 
  Catalina 
  Island, 
  California 
  (type) 
  ; 
  Point 
  Arena, 
  California, 
  to 
  

   Cerros 
  Island, 
  Lower 
  California 
  (Dall). 
  Pliocene 
  (Grant 
  and 
  Gale). 
  Pleistocene 
  (Arnold) 
  

  

  Family 
  Xeptuxeidae 
  

   Genus 
  Calicantharus 
  Clark, 
  1938 
  

  

  Calicanthanis 
  Clark, 
  1938, 
  Geol. 
  Soc. 
  American, 
  Bull., 
  vol. 
  49, 
  no. 
  5, 
  p. 
  712 
  as 
  subgenus 
  

  

  Cantlwriis 
  

   Type 
  species 
  by 
  original 
  designation, 
  Pisania 
  fortis 
  Carpenter, 
  1866, 
  Ann. 
  IMag. 
  Nat. 
  

  

  Hist., 
  ser. 
  3, 
  vol. 
  XVII, 
  p. 
  277. 
  Pleistocene. 
  California. 
  Woodring, 
  Bramlette, 
  and 
  Kew, 
  

  

  1946, 
  U. 
  S. 
  Geol. 
  Sur., 
  Prof. 
  Paper 
  207, 
  pi. 
  29, 
  figs. 
  28, 
  29 
  

  

  Calicantharus 
  fortis 
  (Carpenter) 
  

  

  Pisania 
  fortis 
  Carpenter, 
  1864b, 
  p. 
  539; 
  Reprint, 
  1872, 
  p. 
  25; 
  1866, 
  Ann. 
  Mag. 
  Nat. 
  Hist., 
  

  

  ser. 
  3, 
  vol. 
  XVII, 
  p. 
  275, 
  277; 
  Reprint, 
  1872, 
  p. 
  322, 
  324; 
  Cooper, 
  1888, 
  7th 
  Ann. 
  Rept. 
  

  

  California 
  State 
  Min. 
  Bur., 
  p. 
  260; 
  Arnold, 
  1903, 
  p. 
  227; 
  Van 
  Winkle 
  [Palmer], 
  

  

  1921, 
  Bull. 
  Amer. 
  Paleont., 
  vol. 
  36, 
  no. 
  8, 
  p. 
  350 
  type 
  not 
  found 
  

   Canthanis 
  fortis 
  (Carpenter), 
  Grant 
  and 
  Gale, 
  1931, 
  p. 
  647, 
  pi. 
  28, 
  fig. 
  2 
  see 
  for 
  further 
  

  

  synonymy; 
  Hanna 
  and 
  Hertlein, 
  1941, 
  Div. 
  Mines, 
  California, 
  Bull, 
  no. 
  118, 
  pt. 
  2, 
  

  

  fig. 
  64—12 
  Pliocene 
  

   Calicantliarus 
  fortis 
  (Carpenter), 
  Clark, 
  1938, 
  Geol. 
  Soc. 
  America, 
  Bull., 
  vol. 
  49, 
  p. 
  712; 
  

  

  Woodring, 
  Bramlette, 
  and 
  Kew, 
  1946, 
  U. 
  S. 
  Geol. 
  Sur., 
  Prop. 
  Paper 
  207, 
  p. 
  75, 
  pi. 
  29, 
  

  

  figs. 
  28, 
  29 
  

  

  "P. 
  testa 
  P. 
  insigni 
  simili, 
  sed 
  soldidiore 
  ; 
  crassissima, 
  sculptura 
  valde 
  impressa 
  ; 
  anfr, 
  

   norm, 
  v., 
  parum 
  rotundatis, 
  suturis 
  distinctis 
  ; 
  costis 
  radiantibus 
  t. 
  juniore 
  circ. 
  XII., 
  

   obtusis, 
  parum 
  expressis, 
  postea 
  obsoletis 
  ; 
  liris 
  spiralibus 
  validis, 
  crebis 
  (quarum 
  t. 
  juniore 
  

   v.. 
  postea 
  X., 
  in 
  spira 
  monstrantur), 
  subaequalibus, 
  anticis 
  majoribus; 
  canali 
  recurvata; 
  

   lacuna 
  umbilicali 
  magna; 
  labro 
  intus 
  crebrilirato; 
  labio 
  conspicuo, 
  spiraliter 
  rugose 
  lirato. 
  

  

  "Hab. 
  Sta 
  Barbara, 
  Pleistocene 
  formation 
  (Jezcett). 
  

  

  "Col. 
  Jewett's 
  single 
  specimen 
  is 
  in 
  very 
  fine 
  condition, 
  and 
  is 
  confirmed 
  by 
  a 
  fragment 
  

   obtained 
  by 
  Mr. 
  Gabb, 
  the 
  paleontologist 
  of 
  the 
  California 
  State 
  Survey. 
  Although 
  re- 
  

   sembling 
  Purpura 
  aperfa 
  and 
  congeners 
  in 
  the 
  irregular 
  rugose 
  folds 
  of 
  the 
  labium, 
  and 
  

   Siphonalia 
  in 
  the 
  strongly 
  bent 
  canal, 
  Mr. 
  H. 
  Adams 
  considers 
  that 
  its 
  affinities 
  are 
  closest 
  

   with 
  the 
  Cautharus 
  group 
  of 
  Pisania. 
  That 
  genus 
  is 
  extremely 
  abundant 
  in 
  the 
  tropical 
  

   fauna, 
  but 
  does 
  not 
  now 
  live 
  in 
  California. 
  It 
  is 
  the 
  only 
  distinctly 
  tropical 
  shell 
  in 
  the 
  whole 
  

   collection 
  ; 
  and 
  its 
  presence, 
  along 
  with 
  so 
  many 
  boreal 
  species 
  and 
  types, 
  appears 
  some- 
  

   what 
  anomalous, 
  like 
  the 
  appearance 
  of 
  Valuta 
  and 
  Cassidaria 
  in 
  the 
  Crag 
  fauna. 
  It 
  is 
  dis- 
  

   tinguished 
  from 
  the 
  extreme 
  forms 
  of 
  P. 
  insignis 
  by 
  having 
  the 
  spiral 
  lirae 
  pretty 
  equally 
  

   distributed 
  over 
  the 
  early 
  whorls, 
  by 
  the 
  close 
  internal 
  ribbing 
  of 
  the 
  labrum, 
  by 
  the 
  absence 
  

   of 
  the 
  stout 
  posterior 
  parietal 
  tooth, 
  and 
  bv 
  the 
  great 
  development 
  of 
  the 
  columellar 
  folds." 
  

   [Carpenter, 
  1866, 
  p. 
  277] 
  

  

  The 
  only 
  type 
  has 
  been 
  lost. 
  The 
  species 
  is 
  rare 
  in 
  the 
  San 
  Pedro 
  sand 
  at 
  Deadman 
  

   Island, 
  Timms 
  Point 
  silt, 
  and 
  Palos 
  Verdes 
  sand 
  but 
  common 
  in 
  the 
  Lomita 
  marl 
  of 
  the 
  

   Pleistocene 
  series 
  of 
  the 
  San 
  Pedro 
  area. 
  

  

  Holotype. 
  — 
  Not 
  found 
  

  

  Distribution. 
  — 
  Lower 
  Pleistocene.^"* 
  Santa 
  Barbara 
  formation 
  ; 
  near 
  Santa 
  Barbara, 
  

   California 
  (type). 
  Lower 
  and 
  upper 
  Pleistocene. 
  Palos 
  Verdes 
  Hills, 
  California 
  (Woodring, 
  

   Bramlette, 
  and 
  Kew-) 
  

  

  Genus 
  Exilioidea 
  Grant 
  and 
  Gale, 
  1931 
  

  

  Exilioidea 
  Grant 
  and 
  Gale. 
  1931, 
  Saji 
  Diego 
  Soc. 
  Nat. 
  Hist., 
  Mem., 
  vol. 
  I, 
  p. 
  665 
  

   Type 
  species 
  by 
  original 
  designation, 
  Chrysodomus 
  rectirostris 
  Carpenter, 
  1865, 
  Acad. 
  Nat. 
  

   Sci. 
  Philadelphia, 
  Proc, 
  p. 
  64. 
  Recent. 
  Behm 
  Canal, 
  Alaska, 
  to 
  Cape 
  San 
  Quintin, 
  Lower 
  

   California. 
  Bentson, 
  1940, 
  Univ. 
  California 
  Pub., 
  Dept. 
  Geol. 
  Sci., 
  vol. 
  25, 
  pi. 
  1, 
  fig. 
  22 
  

  

  Exilioidea 
  rectirostris 
  (Carpenter) 
  

  

  Chrvsodoinus 
  rectirostris 
  Carpenter, 
  1864b, 
  p. 
  603, 
  664; 
  1865, 
  Acad. 
  Nat. 
  Sci. 
  Philadelphia, 
  

   Proc., 
  vol. 
  17, 
  p. 
  64; 
  Arnold, 
  1903, 
  p. 
  228, 
  pi. 
  VII, 
  fig. 
  7 
  

  

  1"* 
  Also 
  determined 
  as 
  upper 
  Pliocene, 
  or 
  in 
  part 
  upper 
  Pliocene 
  and 
  lower 
  Pleistocene. 
  

  

  