﻿ECHIUROID 
  WORMS 
  OF 
  NOHTH 
  PACIFIC 
  — 
  FISHER 
  239 
  

  

  about 
  1 
  mm. 
  long. 
  A 
  specimen 
  from 
  Los 
  Frailes, 
  Baja 
  California? 
  

   has 
  the 
  intestine 
  distended 
  with 
  sand 
  not 
  in 
  pellets. 
  

  

  The 
  specimen 
  shown 
  in 
  plate 
  21 
  , 
  figure 
  4, 
  was 
  12 
  mm. 
  long 
  and 
  9 
  mm. 
  

   liiick 
  when 
  alive, 
  contracting 
  to 
  about 
  10 
  by 
  10 
  mm. 
  when 
  killed. 
  

   The 
  transparent 
  areas 
  of 
  body 
  wall 
  are 
  characteristic 
  and 
  are 
  dotted 
  

   with 
  gi'ayish 
  or 
  wliitish 
  papillae. 
  In 
  life 
  the 
  general 
  tone 
  is 
  greenish 
  

   or 
  olive, 
  with 
  gi'ay 
  papillae 
  spots, 
  the 
  proboscis 
  bordered 
  with 
  yellow. 
  

   In 
  the 
  clear 
  area 
  the 
  lateral 
  nerves 
  can 
  be 
  seen 
  as 
  they 
  leave 
  the 
  ven- 
  

   tral 
  nerve 
  cord 
  and 
  in 
  favorable 
  specimens 
  the 
  nerve 
  loop 
  can 
  be 
  

   traced 
  around 
  the 
  entire 
  margin 
  of 
  proboscis. 
  

  

  Dr. 
  Olga 
  Hartman 
  describes 
  small 
  specimens 
  from 
  off 
  southern 
  

   California 
  as 
  being 
  rich, 
  dark, 
  satiny 
  green 
  in 
  life, 
  wliile 
  those 
  from 
  

   Newport 
  Bay 
  Professor 
  MacGinitie 
  found 
  to 
  be 
  decidedly 
  greenish. 
  

  

  Text 
  figures 
  13 
  and 
  14 
  indicate 
  how 
  widely 
  the 
  neplu-idia 
  vary 
  in 
  

   size. 
  In 
  the 
  swollen 
  state 
  the 
  wall 
  is 
  perfectly 
  transparent 
  and 
  

   excessively 
  thin 
  and 
  the 
  proximal 
  parts 
  of 
  the 
  four 
  vesicles 
  adhere 
  to 
  

   each 
  other, 
  the 
  distal 
  part 
  lying 
  at 
  random, 
  crowded 
  amid 
  the 
  close 
  

   coils 
  of 
  the 
  mud-filled 
  intestine. 
  The 
  eggs 
  are 
  suspended 
  in 
  a 
  thin 
  

   gel, 
  spaced 
  1 
  or 
  2 
  diameters 
  apart. 
  They 
  vary 
  from 
  0.09 
  to 
  0.1 
  mm. 
  

   in 
  diameter 
  and 
  are 
  gi-avish 
  in 
  color, 
  surrounded 
  bj^ 
  a 
  clear 
  zone 
  

   (about 
  0.009 
  mm. 
  thick). 
  The 
  clearly 
  visible 
  nucleus 
  is 
  0.045 
  mm. 
  in 
  

   diameter. 
  

  

  In 
  text 
  figures 
  12 
  and 
  1 
  'A 
  the 
  vascular 
  system 
  is 
  shown 
  in 
  a 
  contracted 
  

   state. 
  It 
  does 
  not 
  (lifFcr 
  in 
  essentials 
  from 
  that 
  of 
  the 
  fully 
  adult 
  

   (pl. 
  22). 
  

  

  7;v/>^.— 
  U.S.N. 
  M. 
  No. 
  20008. 
  

  

  Tyj)e 
  locality. 
  — 
  Monterey 
  Bay, 
  Calif., 
  moderate 
  depth, 
  fine 
  sand; 
  

   from 
  stomach 
  of 
  flounders. 
  

  

  Specimens 
  examined. 
  — 
  As 
  follows: 
  

  

  Monterey 
  Bay, 
  10 
  large 
  and 
  4 
  small 
  specimens. 
  

  

  Tomalcs 
  Bay, 
  Marin 
  County, 
  Calif., 
  low 
  tide, 
  soft 
  black 
  sandy 
  mud, 
  about 
  6 
  

  

  inches 
  below 
  surface, 
  1 
  large 
  female, 
  June 
  7, 
  1941 
  (University 
  of 
  California). 
  

   Newport 
  Bay, 
  Calif., 
  7 
  to 
  20 
  fathoms, 
  numerous 
  specimens, 
  4 
  to 
  1 
  5 
  mm. 
  ; 
  collected 
  

  

  by 
  Prof 
  G. 
  E. 
  MacCinitio. 
  

  

  The 
  Allan 
  Hancock 
  Foundation 
  tendered 
  for 
  examination 
  an 
  impor- 
  

   tant 
  collection 
  from 
  Baja 
  California 
  and 
  off 
  southern 
  California, 
  com- 
  

   j)rising 
  the 
  small 
  phase 
  and 
  some 
  of 
  intermediate 
  size 
  (20 
  to 
  40 
  mm.): 
  

  

  JiAJA 
  Camkornia 
  

  

  Lfis 
  p'raih-s, 
  5 
  1.') 
  fathoms, 
  sand 
  aixl 
  nlnac, 
  1 
  specimen. 
  

  

  I'ppcr 
  end 
  of 
  Culf 
  of 
  ("aiifornia, 
  21 
  fathoms, 
  brown 
  mud, 
  6 
  specimens. 
  

  

  Camkciuma 
  

  

  Off 
  Newport 
  Beach, 
  ."iO 
  fathoms, 
  mud, 
  7 
  specimens. 
  

  

  Off 
  Laguna 
  Beach, 
  2.'> 
  .'>7 
  fathoms, 
  sandy 
  mud, 
  2.') 
  specimens. 
  

  

  