﻿NO. 
  1959. 
  SIPUNCULIDS 
  OF 
  EASTERN 
  NORTH 
  AMERICA— 
  GEROULD. 
  429 
  

  

  between 
  S. 
  nudus 
  and 
  S. 
  tituhans, 
  and 
  free 
  nephridia 
  as 
  in 
  S. 
  niidus. 
  

   In 
  all 
  these 
  specimens 
  the 
  four 
  retractors 
  arise 
  in 
  the 
  same 
  zone, 
  

   the 
  ventral 
  having 
  their 
  origin 
  from 
  longitudinal 
  muscles 
  2-4, 
  the 
  

   dorsal 
  from 
  9-13. 
  (See 
  Selenka's 
  description: 
  3-5 
  ventral, 
  8-13 
  dor- 
  

   sal. 
  Fischer's, 
  1894: 
  3-5 
  ventral, 
  or 
  1-5 
  ventral, 
  and 
  9-12 
  dorsal 
  

   or 
  8-13 
  dorsal.) 
  A 
  spindle 
  muscle 
  is 
  present 
  as 
  in 
  S. 
  nudus. 
  Ne- 
  

   phridia 
  open 
  between 
  longitudinal 
  muscle 
  bands 
  4-5, 
  as 
  in 
  S. 
  nudus 
  

   and 
  S. 
  rohustus. 
  

  

  These 
  specimens 
  are 
  unpigmented 
  except 
  at 
  the 
  anterior 
  extremity 
  

   of 
  the 
  trunk, 
  where 
  the 
  longitudinal 
  ridges 
  are 
  inconspicuously 
  

   marked 
  for 
  10 
  mm. 
  or 
  less 
  with 
  longitudinal 
  rows 
  of 
  small 
  circular 
  

   bluish-brown 
  spots 
  tending 
  to 
  become 
  confluent. 
  The 
  trunk 
  of 
  the 
  

   specimen 
  from 
  Jamaica 
  is 
  65 
  mm. 
  long. 
  The 
  Trinidad 
  specimens 
  

   measure: 
  Trunk 
  110 
  mm., 
  introvert 
  (narrow 
  papillated 
  part 
  only, 
  not 
  

   the 
  whole 
  region 
  in 
  front 
  of 
  the 
  anus) 
  about 
  15 
  mm. 
  Another: 
  

   Trunk 
  70 
  mm., 
  introvert 
  10 
  mm. 
  

  

  It 
  will 
  readily 
  be 
  seen 
  that 
  these 
  specimens 
  suggest 
  that 
  S. 
  tituhans 
  

   is 
  a 
  variable 
  form 
  closely 
  resembling 
  S. 
  nudus 
  and 
  S. 
  rohustus 
  Kefer- 
  

   stein, 
  from 
  which, 
  in 
  some 
  cases 
  at 
  least, 
  it 
  can 
  hardly 
  be 
  distin- 
  

   guished. 
  

  

  S. 
  tituhans 
  was 
  originally 
  described 
  by 
  Selenka 
  and 
  Biilow 
  (1883) 
  

   from 
  a 
  specimen 
  from 
  Puntarenas 
  on 
  the 
  Pacific 
  coast 
  of 
  Costa 
  Kica. 
  

   Specimens 
  in 
  the 
  Hamburg 
  Museum 
  described 
  by 
  Fischer 
  (1894) 
  are 
  

   from 
  St. 
  Jose 
  di 
  Guatemala 
  (Pacific 
  coast 
  of 
  Guatemala) 
  and 
  Mada- 
  

   gascar; 
  and 
  a 
  variety 
  of 
  the 
  species 
  from 
  Accra, 
  West 
  Africa, 
  is 
  also 
  

   described 
  by 
  Fischer. 
  According 
  to 
  Selenka 
  it 
  has 
  been 
  found 
  in 
  the 
  

   Barbados 
  and 
  is 
  common 
  in 
  the 
  Pacific, 
  especially 
  at 
  Uwea 
  (Wallis 
  

   Island), 
  Opalu 
  (Samoa), 
  Pelew 
  Islands, 
  Palaos, 
  Amboina, 
  Timor, 
  and 
  

   Lyly 
  Islands. 
  

  

  SIPUNCULUS 
  PRIAPULOIDES 
  Korea 
  and 
  Danielssen 
  var. 
  AMERICANA, 
  new 
  variety. 
  

   Phallosoma 
  priapuloide 
  (Levinsen), 
  1882 
  and 
  1883. 
  

  

  Type.— 
  C&t. 
  No. 
  1379, 
  U.S.N.M. 
  From 
  station 
  No. 
  2709. 
  

  

  Specimens 
  were 
  taken 
  from 
  the 
  following 
  locaUties 
  off 
  the 
  coast 
  of 
  

   the 
  United 
  States: 
  

  

  Station 
  2530, 
  southeast 
  of 
  Georges 
  Bank, 
  lat. 
  40° 
  53' 
  30'' 
  N.; 
  

   long. 
  66° 
  24' 
  W.; 
  956 
  fathoms, 
  gray 
  ooze; 
  bottom 
  temperature, 
  

   38.4° 
  F. 
  

  

  Station 
  2709, 
  south 
  of 
  Georges 
  Bank, 
  lat. 
  40° 
  07' 
  N.; 
  long. 
  67° 
  54' 
  

   W. 
  ; 
  866 
  fathoms, 
  brown 
  mud. 
  

  

  Station 
  2217, 
  lat. 
  39° 
  47' 
  20" 
  N.; 
  long. 
  69° 
  34' 
  15" 
  W.; 
  924 
  

   fathoms, 
  gray 
  mud; 
  temperature 
  at 
  bottom, 
  38.1° 
  F. 
  

  

  Station 
  2235, 
  off 
  Cape 
  May 
  and 
  Sandy 
  Hook, 
  lat. 
  39° 
  12' 
  N. 
  ; 
  long. 
  

   72° 
  03' 
  30" 
  W.; 
  707 
  fathoms, 
  green 
  mud; 
  temperature 
  at 
  bottom, 
  

   38.8° 
  F. 
  

  

  