﻿GASTROPODA 
  

  

  147 
  

  

  Dtstribuf 
  ion. 
  —Recent 
  Catalina 
  Island, 
  California 
  (type) 
  ; 
  Monterey, 
  California, 
  to 
  Tres 
  

   Marias 
  Islands, 
  Mexico 
  (Burch). 
  Pleistocene 
  (Woodring, 
  Bramlette, 
  and 
  Kew, 
  1946, 
  p. 
  63) 
  

  

  Family 
  Turbinidae 
  

   Genus 
  Homalopoma 
  Carpenter, 
  1864, 
  Aug. 
  

  

  Hoiimlopoma 
  Carpenter, 
  1864b, 
  Aug., 
  p. 
  537, 
  588, 
  627, 
  652; 
  Reprint, 
  1872, 
  p. 
  23, 
  74, 
  113, 
  138. 
  

  

  Xew 
  name 
  for 
  Lcptonvx 
  Carpenter, 
  1864 
  

   Lcttonx.v 
  Carpenter. 
  1864b, 
  Aug., 
  p. 
  612, 
  627. 
  652; 
  Reprint, 
  1872, 
  p. 
  98, 
  113, 
  138; 
  1864. 
  Dec, 
  

  

  California 
  Acad. 
  Sci., 
  Proc, 
  vol. 
  Ill, 
  p. 
  176 
  Adams 
  partially 
  included 
  in 
  authorship. 
  Xot 
  

  

  Lcptonvx 
  SwAiNSON, 
  1833; 
  Gray. 
  1837, 
  or 
  Lesson, 
  1842 
  see 
  Neave, 
  (1939-1940) 
  

   Lcptothyra 
  Dale, 
  1871, 
  Amer. 
  Jour. 
  Conch., 
  vol. 
  VII, 
  p. 
  130 
  Carpenter 
  ms. 
  Not 
  Leptothyra 
  

  

  Pease,1869, 
  Amer. 
  Jour. 
  Conch., 
  vol. 
  5, 
  p. 
  70 
  

   Pctropoma 
  Gabb, 
  1877, 
  Acad. 
  Nat. 
  Sci. 
  Philadelphia, 
  Jour., 
  new 
  species, 
  vol. 
  VIII, 
  p. 
  281 
  

  

  fide 
  PiLSBRY, 
  1893, 
  Nautilus, 
  vol. 
  7, 
  p. 
  84 
  

   CoUonista 
  Iredale, 
  1918, 
  Malacol. 
  Soc. 
  London, 
  Proc, 
  vol. 
  13, 
  p. 
  28, 
  30 
  fide 
  Wenz, 
  1938, 
  

  

  Hand. 
  Palaozoologie, 
  Bd. 
  6, 
  Teil 
  2, 
  p. 
  341 
  

   Type 
  species 
  bv 
  monotypy, 
  H. 
  sangiiinaeiis 
  (Linnaeus) 
  ^= 
  Turbo 
  sangidnaeus 
  Linnaeus, 
  

  

  1758, 
  Syst. 
  Naturae, 
  p. 
  762>. 
  Living. 
  Mediterranean 
  and 
  Adriatic 
  Sea. 
  Pilsbry, 
  1888, 
  Man. 
  

  

  Conch., 
  vol. 
  X, 
  p. 
  249, 
  pi. 
  49, 
  figs. 
  48, 
  49 
  ; 
  pi. 
  64, 
  figs. 
  60, 
  61 
  

  

  Although 
  the 
  monotype 
  which 
  Carpenter 
  used 
  when 
  originating 
  this 
  generic 
  name 
  was 
  a 
  

   misidentification 
  his 
  citation 
  of 
  Linnaeus' 
  name 
  confirms 
  the 
  Linnaean 
  species 
  as 
  the 
  type 
  

   species. 
  Even 
  though 
  Carpenter 
  probably 
  had 
  the 
  West 
  Coast 
  form 
  in 
  mind 
  there 
  is 
  not 
  

   conflict 
  enough 
  in 
  regard 
  to 
  the 
  generic 
  name 
  to 
  warrant 
  submission 
  of 
  the 
  problem 
  to 
  the 
  

   International 
  Commission 
  on 
  Zoological 
  nomenclature. 
  

  

  Homalopoma 
  baculum 
  (Carpenter) 
  

   (PI. 
  19, 
  figs. 
  14, 
  15) 
  

  

  Lcptonvx 
  bacnla 
  Carpenter, 
  1864b, 
  Aug., 
  p. 
  612, 
  652; 
  Reprint, 
  1872, 
  p. 
  98, 
  138 
  Homalopoma, 
  

  

  p. 
  652; 
  1865, 
  California 
  Acad. 
  Sci., 
  Proc, 
  vol. 
  Ill, 
  p. 
  177; 
  Pilsbry, 
  1888, 
  Alan. 
  Conch., 
  

  

  vol. 
  X, 
  p. 
  248, 
  pi. 
  39a, 
  fig. 
  2,Z; 
  D.\ll, 
  1921, 
  p. 
  173; 
  Oldroyd, 
  1924, 
  Pub. 
  Puget 
  Sound 
  Biol. 
  

  

  Station, 
  vol. 
  4, 
  p. 
  170 
  ; 
  1927, 
  vol. 
  II, 
  pt. 
  Ill, 
  p. 
  167 
  

   Lcptothvra 
  bacnla 
  (Carpenter), 
  Cooper, 
  1867, 
  Geog. 
  Cat. 
  Moll., 
  Geol. 
  Sur. 
  California, 
  p. 
  25; 
  

  

  Williamson, 
  1892, 
  U. 
  S. 
  Nat. 
  Mus., 
  Proc, 
  vol. 
  15, 
  no. 
  898. 
  p. 
  199 
  

   Homalopoma 
  bacula 
  Carpenter, 
  Grant 
  and 
  Gale, 
  1931, 
  p. 
  822 
  see 
  for 
  additional 
  synonymy; 
  

  

  Keen, 
  1937, 
  p. 
  Z7 
  ; 
  Woodring, 
  Bramlette, 
  and 
  Kew, 
  1946, 
  U. 
  S. 
  Geol. 
  Sur., 
  Prof. 
  Paper 
  

  

  207, 
  p. 
  64 
  

   Homalopoma 
  baculum 
  (Carpenter), 
  Burch, 
  1946, 
  no. 
  57, 
  p. 
  23; 
  Smith 
  and 
  Gordon, 
  1948, 
  

  

  California 
  Acad. 
  Sci., 
  Proc, 
  ser. 
  4, 
  vol. 
  XXVI, 
  no. 
  8, 
  p. 
  200 
  

   Turbo 
  paucicostatus 
  "Ball, 
  1887" 
  Sowerby, 
  1884, 
  Thes. 
  Conch., 
  vol. 
  5, 
  p. 
  229, 
  pi. 
  13, 
  fig. 
  172 
  

  

  not 
  L. 
  paucicostata 
  Dall, 
  1871, 
  Fide 
  Pilsbry, 
  1888, 
  and 
  Grant 
  and 
  G-\le, 
  1931 
  

  

  "Small, 
  ash}^ 
  Helicina-shaped, 
  nearly 
  smooth. 
  Bch. 
  d. 
  Cp. 
  Genus 
  Homalopoma, 
  p. 
  537 
  : 
  

   nom. 
  preoc." 
  [Carpenter, 
  1864b, 
  p. 
  652] 
  

  

  The 
  following 
  lines 
  should 
  be 
  added 
  to 
  Oldroyd's 
  copy 
  (1927) 
  of 
  Carpenter's 
  description 
  

   (1865): 
  

  

  "Hab. 
  Catalina 
  Is., 
  dead 
  on 
  beach 
  ; 
  Cooper, 
  no. 
  1056. 
  

  

  "This 
  unpretending 
  little 
  shell 
  resembles 
  on 
  the 
  back 
  one 
  of 
  the 
  small 
  Helicinae. 
  It 
  differs 
  

   from 
  L. 
  sanguineus 
  in 
  its 
  small 
  size, 
  ashy 
  color, 
  flattened 
  sutures, 
  and 
  nearly 
  obsolete 
  sculp- 
  

   ture. 
  A 
  groove 
  in 
  the 
  somewhat 
  callous 
  columella, 
  continued 
  slightly 
  round 
  the 
  labrum, 
  seems 
  

   intended 
  for 
  the 
  broad-margined 
  operculum 
  of 
  the 
  genus." 
  [Carpenter, 
  1864e, 
  p. 
  177] 
  

  

  The 
  holotype, 
  in 
  the 
  U. 
  S. 
  National 
  Museum, 
  is 
  labelled 
  "type 
  Catalina 
  Is. 
  Cooper." 
  There 
  

   are 
  the 
  remains 
  of 
  a 
  hermit 
  crab 
  within 
  the 
  shell. 
  The 
  shell 
  is 
  smooth 
  with 
  faint 
  suggestions 
  

   of 
  spiral 
  lines 
  on 
  the 
  penultimate 
  whorl. 
  

  

  Holotype. 
  — 
  U. 
  S. 
  National 
  Museum, 
  no. 
  16284 
  

  

  Distribution.— 
  Recent. 
  Catalina 
  Island, 
  California 
  (type) 
  ; 
  Puget 
  Sound 
  to 
  San 
  :Martin 
  

   Island, 
  Lower 
  California 
  (Dall). 
  Pleistocene 
  (Arnold, 
  1903; 
  Grant 
  and 
  Gale; 
  Woodring, 
  

   Bramlette, 
  and 
  Kew). 
  Pliocene 
  (Arnold, 
  1903; 
  Berry 
  1908) 
  

  

  Homalopoma 
  carpenteri 
  (Pilsbry) 
  

  

  Leptonyx 
  sanguinea 
  ("Linnaeus") 
  Carpenter, 
  1864b, 
  p. 
  612, 
  627, 
  652; 
  Reprint, 
  1872, 
  p. 
  98, 
  

   113, 
  138; 
  1864, 
  Dec, 
  California 
  Acad. 
  Sci., 
  Proc, 
  vol. 
  Ill, 
  p. 
  176. 
  Not 
  Turbo 
  sanguineus 
  

   Linnaeus, 
  1758, 
  Syst. 
  Natural, 
  10th 
  ed., 
  p. 
  763 
  

  

  