﻿194 
  MARINE 
  MOLLUSCA 
  DESCRTBED 
  V,Y 
  P. 
  P. 
  CARPENTER 
  

  

  The 
  holotype, 
  as 
  may 
  be 
  seen 
  from 
  the 
  pliolograph, 
  is 
  badly 
  worn 
  with 
  the 
  body 
  whorl 
  

   broken. 
  The 
  break 
  was 
  occasioned 
  by 
  Carpenter 
  as 
  mentioned 
  by 
  him. 
  The 
  specimen 
  has 
  fine 
  

   punctations 
  like 
  "E. 
  spongiosum" 
  , 
  but 
  it 
  has 
  fairly 
  strong 
  longitudinal 
  ribs. 
  Inside 
  the 
  

   aperture 
  the 
  surface 
  is 
  flecked 
  with 
  bluish 
  purple. 
  This 
  condition 
  was 
  noted 
  by 
  Carpenter. 
  

  

  A 
  comparison 
  made 
  of 
  the 
  holotypes 
  of 
  O. 
  spongiosa 
  and 
  O. 
  retiporosa 
  convinces 
  one 
  that 
  

   the 
  two 
  forms 
  are 
  synonymous. 
  This 
  is 
  in 
  agreement 
  with 
  the 
  collecting 
  data 
  and 
  opinion 
  

   of 
  workers 
  (Willett; 
  Strong; 
  Burch) 
  that 
  only 
  one 
  species 
  exists. 
  O. 
  bullata 
  is 
  similar 
  to 
  

   O. 
  spongiosa. 
  

  

  The 
  writer 
  arranged 
  the 
  data 
  on 
  each 
  name 
  separately, 
  so 
  that 
  the 
  facts 
  could 
  be 
  evaluated 
  

   more 
  readily. 
  In 
  the 
  original 
  references 
  the 
  name 
  and 
  description 
  of 
  both 
  species 
  are 
  on 
  the 
  

   same 
  page. 
  O. 
  spongiosa 
  is 
  mentioned 
  first 
  in 
  all 
  cases, 
  so 
  that 
  name 
  has 
  priority 
  over 
  O. 
  

   retiporosa. 
  In 
  the 
  original 
  reference, 
  it 
  is 
  also 
  mentioned 
  before 
  O. 
  bullata 
  Carpenter. 
  O. 
  

   bullata 
  was 
  given 
  a 
  more 
  detailed 
  description 
  by 
  Carpenter 
  (1865), 
  before 
  that 
  of 
  the 
  other 
  

   two 
  names 
  (1866). 
  

  

  Types. 
  — 
  U. 
  S. 
  National 
  Museum, 
  holotype, 
  "O. 
  spongiosa," 
  no. 
  14830; 
  holotype, 
  O. 
  reti- 
  

   porosa, 
  no. 
  11843 
  

  

  Distribution. 
  — 
  Recent. 
  Monterey, 
  California 
  ( 
  tyi)e, 
  "O. 
  spongiosa" 
  ; 
  type, 
  O. 
  retiporosa, 
  

   Catalina 
  Island); 
  off 
  Oregon 
  coast 
  in 
  50 
  fatlioms, 
  to 
  Lower 
  California 
  (Dall). 
  Pliocene 
  

   (Moody, 
  1916) 
  

  

  Family 
  Eulimidae 
  (Melancllidae) 
  

   Genus 
  Balcis 
  Leach 
  in 
  Gray, 
  1847 
  

  

  Balds 
  Le.\ch 
  in 
  Gray, 
  1847, 
  Ann. 
  Mag. 
  Nat. 
  Hist., 
  vol. 
  XX, 
  p. 
  271 
  

  

  Type 
  species 
  by 
  monotypy 
  Winckworth*^, 
  1934, 
  Jour. 
  Conch., 
  vol. 
  20, 
  no. 
  1, 
  p. 
  13, 
  Balcis 
  

   Montagui 
  = 
  Helix 
  polita 
  Montagu, 
  1803, 
  Test. 
  Britannica, 
  vol. 
  II, 
  p. 
  398 
  = 
  B. 
  alba 
  

   (da 
  Costa), 
  1778, 
  Brit. 
  Conch., 
  p. 
  116 
  as 
  Stroinbifonnis 
  albus. 
  Living. 
  Northern 
  Europe. 
  

  

  Balcis 
  compacta 
  (Carpenter) 
  

  

  Eulima 
  compacta 
  Carpenter, 
  1864b, 
  p. 
  613, 
  659; 
  Reprint, 
  1872, 
  p. 
  99, 
  145; 
  1866, 
  California 
  

   Acad. 
  Sci., 
  Proc, 
  vol. 
  Ill, 
  p. 
  221 
  ; 
  Cooper, 
  1867, 
  Geog. 
  Cat. 
  Moll., 
  Geol. 
  Sur. 
  California, 
  p. 
  

   34; 
  Tryon, 
  1886, 
  Man. 
  Conch., 
  vol. 
  VIII, 
  p. 
  278; 
  Vanatta, 
  1899, 
  Acad. 
  Nat. 
  Sci., 
  Phila- 
  

   delphia, 
  Proc, 
  vol. 
  51, 
  p. 
  255, 
  256, 
  pi. 
  XI, 
  tigs. 
  11, 
  12 
  

  

  MelancUa 
  (Mclanella) 
  compacta 
  (Carpenter), 
  Bartsch, 
  1917, 
  U. 
  S. 
  Nat. 
  Mus., 
  Proc, 
  vol. 
  

   53, 
  no. 
  2207, 
  p. 
  314, 
  pi. 
  2,7, 
  fig. 
  3 
  lectotype 
  

  

  Melanella 
  compacta 
  (Carpenter), 
  Dall, 
  1921, 
  p. 
  118; 
  Oldroyd, 
  1927, 
  vol. 
  II, 
  pt. 
  II, 
  p. 
  77, 
  pi. 
  

   40, 
  fig. 
  3 
  .same 
  as 
  Bartsch, 
  1917, 
  lectotype; 
  Keen, 
  1937, 
  p. 
  40 
  

  

  Balcis 
  compacta 
  (Carpenter), 
  Burcii, 
  1945, 
  no. 
  53, 
  p. 
  6, 
  8, 
  11; 
  Berry, 
  1954, 
  Bull. 
  Amer. 
  

   Paleont, 
  vol. 
  35, 
  no. 
  151, 
  p. 
  4 
  

  

  "Small, 
  with 
  blunt 
  spire 
  and 
  elongated 
  base." 
  [Carpenter, 
  1864b, 
  p. 
  659, 
  locality 
  between 
  

   San 
  Diego 
  and 
  San 
  Pedro] 
  

  

  Oldroyd 
  (1927) 
  rci>ul)lis]ic(l 
  Cari)enter's 
  (lcscri])li()n 
  (1866). 
  The 
  following 
  clianges 
  should 
  

   be 
  made 
  in 
  her 
  copy 
  : 
  

  

  Line 
  1 
  : 
  read 
  "tereti" 
  : 
  for 
  "tcrti," 
  : 
  last 
  line 
  : 
  delete 
  "pull." 
  

   Add: 
  

  

  ". 
  . 
  . 
  div. 
  22°. 
  

  

  "Hah. 
  San 
  Pedro; 
  Cooper. 
  

  

  "A 
  single 
  dead 
  shell 
  was 
  found 
  in 
  Dr. 
  Palmer's 
  consignment." 
  [Carpenter, 
  1866a, 
  p. 
  221 
  

   (? 
  var.)] 
  

  

  Bartsch 
  gave 
  a 
  complete 
  discussion 
  and 
  illustration 
  of 
  the 
  lectotype. 
  The 
  syntypes 
  bear 
  

   the 
  label, 
  "Type 
  Cooper 
  San 
  Pedro." 
  There 
  are 
  two 
  specimens. 
  

  

  Dimensions. 
  — 
  Length 
  6.8 
  mm.; 
  diameter 
  2.2 
  mm. 
  (lectotype, 
  Bartsch) 
  

  

  Lectotype 
  and 
  paratype. 
  — 
  U. 
  S. 
  National 
  Museum, 
  no. 
  13517b 
  

  

  Distribution. 
  — 
  San 
  Pedro, 
  California 
  (type) 
  ; 
  San 
  Pedro, 
  California, 
  to 
  Point 
  Abreojos, 
  

   Lower 
  California 
  (Dall). 
  Pleistocene. 
  Long 
  Wharf 
  Canyon, 
  Santa 
  Monica 
  (Berry) 
  

  

  ^" 
  Two 
  of 
  the 
  three 
  sjiecies 
  listed 
  by 
  W'inckworth 
  are 
  nude 
  names. 
  

  

  