﻿392 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM. 
  vol.44. 
  

  

  Sluiter 
  (1900), 
  station 
  757, 
  off 
  Cape 
  Finisterre, 
  Spain, 
  lat. 
  44° 
  06' 
  

   N.; 
  long. 
  12° 
  41' 
  W.; 
  4,900 
  meters; 
  clay 
  mud. 
  

  

  Two 
  s])ecimens 
  were 
  taken 
  by 
  the 
  Fisheries 
  steamer 
  Albatross 
  in 
  

   1885 
  with 
  a 
  trawl 
  in 
  the 
  same 
  region 
  at 
  which 
  the 
  Challenger 
  took 
  a 
  

   specimen 
  in 
  1873 
  — 
  that 
  is, 
  east 
  of 
  Cape 
  Charles, 
  Virginia, 
  and 
  south- 
  

   ward 
  from 
  Cape 
  Cod. 
  Another 
  specimen 
  was 
  dredged 
  by 
  the 
  Prince 
  

   of 
  j\Ionaco 
  off 
  Cape 
  Finisterre, 
  Spain, 
  and 
  two 
  specimens 
  by 
  the 
  

   CJiallenger 
  from 
  the 
  Pacific 
  Ocean, 
  east 
  of 
  Japan. 
  It 
  is 
  found 
  in 
  the 
  

   deep 
  sea 
  at 
  a 
  depth 
  of 
  1,700 
  to 
  2,678 
  fathoms. 
  

  

  The 
  posterior 
  end 
  of 
  the 
  elongated 
  trunk 
  is 
  prolonged 
  into 
  a 
  slender 
  

   flagellum.i 
  Flat, 
  oval 
  papillae 
  projecting 
  forward, 
  a 
  half 
  millimeter 
  

   long, 
  are 
  found 
  near 
  the 
  posterior 
  extremity 
  of 
  the 
  trunk, 
  which 
  else- 
  

   where 
  appears 
  smooth. 
  Slender, 
  finger-shaped 
  papillae 
  are 
  found 
  

   upon 
  the 
  introvert. 
  There 
  are 
  no 
  hooks. 
  

  

  The 
  trunk 
  of 
  the 
  specimen 
  that 
  is 
  intact 
  measures 
  about 
  60 
  mm., 
  

   the 
  introvert 
  about 
  40 
  mm. 
  Selenka's 
  largest 
  specimen 
  was 
  130 
  mm. 
  

   in 
  total 
  length; 
  Sluiter's, 
  with 
  largely 
  retracted 
  introvert, 
  120 
  mm. 
  

   The 
  color 
  of 
  the 
  trunk 
  is 
  yellowish-brown, 
  with 
  pigment 
  at 
  the 
  ante- 
  

   rior 
  extremity, 
  which 
  probably 
  gives 
  the 
  bluish 
  color 
  in 
  that 
  region 
  

   noted 
  by 
  Sluiter. 
  The 
  slender, 
  thin-walled 
  introvert 
  is 
  of 
  a 
  lighter 
  

   color. 
  The 
  anus 
  is 
  prominent, 
  and 
  the 
  openings 
  of 
  the 
  nephi'idia 
  are 
  

   situated 
  slightly 
  in 
  front 
  of 
  it, 
  opposite 
  each 
  other. 
  Selenka 
  de- 
  

   scribes 
  a 
  cu'clet 
  of 
  finger-shaped 
  tentacles, 
  which 
  are 
  heart-shaped 
  in 
  

   cross 
  section. 
  

  

  The 
  coils 
  of 
  the 
  intestine 
  are 
  numerous. 
  It 
  is 
  free 
  behind, 
  but 
  a 
  

   spindle 
  muscle 
  holds 
  it 
  in 
  front 
  (Selenka). 
  The 
  nephridia 
  are 
  free. 
  

   There 
  is 
  a 
  simple 
  contractile 
  tube. 
  

  

  PHASCOLOSOMA 
  SABELLARI.E 
  Theel. 
  

   [=PHASCOLOSOMA 
  (PETALOSTOMA) 
  MINUTUM 
  Keferstein?]. 
  

  

  A 
  large 
  number 
  of 
  these 
  minute, 
  transparent 
  sipunculids 
  were 
  

   taken 
  by 
  the 
  Fisheries 
  steamer 
  Albatross 
  in 
  1883 
  from 
  station 
  2084, 
  

   south 
  of 
  Georges 
  Bank, 
  lat. 
  40° 
  16' 
  50" 
  N.; 
  long. 
  67° 
  05' 
  15" 
  W., 
  in 
  

   1,290 
  fathoms, 
  where 
  the 
  bottom 
  is 
  of 
  gray 
  mud 
  and 
  sand 
  and 
  the 
  tem- 
  

   perature 
  40° 
  F. 
  One 
  specimen 
  was 
  also 
  taken 
  from 
  each 
  of 
  the 
  following 
  

   stations 
  in 
  the 
  same 
  general 
  locality: 
  Station 
  1095, 
  lat. 
  39° 
  55' 
  28" 
  N.; 
  

   long. 
  69° 
  47' 
  W.; 
  321 
  fathoms 
  soft 
  green 
  mud; 
  temperature 
  at 
  bot- 
  

   tom, 
  40° 
  F.; 
  station 
  2571, 
  lat 
  40° 
  09' 
  30" 
  N.; 
  long. 
  67° 
  09' 
  W.; 
  1,356 
  

   fathoms, 
  gray 
  Globigerina 
  ooze; 
  temperature 
  at 
  bottom, 
  37.8° 
  F; 
  

   and 
  two 
  from 
  off 
  Chatham, 
  Massachusetts, 
  station 
  372, 
  lat. 
  41° 
  40' 
  

   N.; 
  long. 
  69° 
  28?,' 
  W., 
  in 
  70 
  fathoms 
  and 
  fi-om 
  a 
  sandy 
  bottom. 
  

  

  The 
  largest 
  specimens 
  measure 
  in 
  contracted 
  conditions 
  about 
  

   8 
  mm. 
  in 
  total 
  length, 
  that 
  of 
  the 
  trunk 
  being 
  5-6 
  mm., 
  and 
  the 
  

   introvert 
  may 
  be 
  estimated 
  as 
  being 
  nearly 
  as 
  long 
  as 
  the 
  trunk. 
  In 
  

  

  » 
  For 
  figures 
  see 
  Selenka 
  (1885), 
  pi. 
  3, 
  lag. 
  17, 
  and 
  tiluiLer 
  (iyou), 
  pi. 
  ], 
  fig. 
  3. 
  

  

  