﻿388 
  PROCEEDINGS! 
  OF 
  THE 
  NATIONAL 
  SIUSEUJI. 
  vol. 
  44. 
  

  

  They 
  differ 
  from 
  the 
  typical 
  form 
  in 
  that 
  the 
  circular 
  ridges 
  and 
  

   furrows 
  of 
  the 
  external 
  surface 
  are 
  nearly 
  concealed 
  by 
  the 
  loose, 
  

   thick, 
  coffee-colored 
  cuticula, 
  which 
  gives 
  the 
  surface 
  the 
  appearance 
  

   of 
  a 
  rough 
  woolen 
  fabric. 
  In 
  one 
  of 
  these 
  specimens 
  the 
  brain 
  is 
  

   distinctly 
  bilobed, 
  and 
  the 
  nephridia 
  are 
  long, 
  but 
  there 
  arc 
  no 
  con- 
  

   stant 
  internal 
  peculiarities 
  that 
  I 
  can 
  discover. 
  

  

  Specimens 
  from 
  Casco 
  Ba}^ 
  have 
  a 
  similar, 
  though 
  less 
  marked, 
  

   scabrous 
  appearance, 
  and 
  certain 
  individuals 
  from 
  off 
  Cape 
  Ann 
  

   show 
  the 
  same 
  tendency. 
  

  

  VARIATIONS 
  FROM 
  GREAT 
  DEPTHS. 
  

  

  The 
  single 
  specimen 
  taken 
  at 
  station 
  2052, 
  south 
  of 
  Georges 
  Bank, 
  

   1,095 
  fathoms, 
  differs 
  markedly 
  in 
  external 
  appearance 
  from 
  the 
  

   typical 
  form. 
  It 
  has 
  a 
  thick, 
  rough, 
  grayish 
  integument 
  thickly 
  

   covered 
  at 
  the 
  posterior 
  extremity 
  of 
  the 
  trunk 
  with 
  bluntly 
  rounded 
  

   papillse. 
  

  

  The 
  imperfect 
  specimen 
  from 
  station 
  891, 
  south 
  of 
  Marthas 
  Vine- 
  

   yard, 
  480 
  fathoms, 
  on 
  the 
  other 
  hand, 
  has 
  a 
  smooth, 
  thin 
  skin 
  sug- 
  

   gesting 
  that 
  of 
  Ph. 
  margaritaceum. 
  

  

  PHASCOLOSOMA 
  VERRILLU 
  Gerould.i 
  

  

  Station 
  15, 
  south 
  of 
  Naushon 
  Island, 
  Massachusetts, 
  7h 
  fathoms, 
  

   rocks 
  and 
  sand. 
  One 
  specimen. 
  

  

  Station 
  79, 
  north 
  of 
  Nashawena 
  Island, 
  5^ 
  fathoms, 
  mud. 
  One 
  

   specimen. 
  

  

  Station 
  93, 
  off 
  north 
  shore 
  of 
  Naushon, 
  7-8 
  fathoms, 
  sandy 
  mud. 
  

   One 
  specimen. 
  

  

  Station 
  135, 
  mouth 
  of 
  West 
  Falmouth 
  Harbor, 
  3f-5 
  fathoms, 
  sand 
  

   and 
  pebbles. 
  Two 
  specimens. 
  

  

  Station 
  7811, 
  off 
  West 
  Falmouth, 
  Massachusetts, 
  6f 
  fathoms. 
  

   Three 
  specimens. 
  

  

  Station 
  1188 
  (year 
  1884), 
  off 
  Nobska 
  Point, 
  4J-5 
  fathoms, 
  hard 
  

   sand. 
  

  

  Off 
  Tarpaulin 
  Cove 
  (south 
  of 
  Naushon) 
  . 
  

  

  Station 
  2280 
  (1884), 
  off 
  Cape 
  Hatteras, 
  lat. 
  35° 
  21 
  'N.; 
  long. 
  75° 
  21' 
  

   30'' 
  W,, 
  16 
  fathoms, 
  gray 
  sand 
  and 
  broken 
  shells. 
  Six 
  specimens. 
  

  

  This 
  species 
  occurs 
  in 
  the 
  shallow 
  waters 
  of 
  Vineyard 
  Sound 
  and 
  

   Buzzards 
  Bay, 
  Massachusetts, 
  and 
  extends 
  southward 
  as 
  far 
  at 
  least 
  

   as 
  Cape 
  Hatteras, 
  and 
  probably 
  farther. 
  The 
  biological 
  survey 
  of 
  

   the 
  Woods 
  Hole 
  region 
  carried 
  on 
  by 
  Dr. 
  F. 
  B. 
  Sumner 
  in 
  1905 
  and 
  

   1906 
  brought 
  to 
  light 
  eight 
  specimens, 
  and 
  four 
  others 
  from 
  Vine- 
  

   yard 
  Sound 
  and 
  six 
  from 
  off 
  Cape 
  Hatteras 
  had 
  already 
  been 
  pre- 
  

   served 
  in 
  the 
  U. 
  S. 
  National 
  Museum. 
  I 
  secured 
  one 
  specimen 
  off 
  

   West 
  Falmouth 
  in 
  August, 
  1907, 
  by 
  dredging 
  with 
  the 
  Phalarope, 
  

  

  I 
  Science, 
  vol. 
  27, 
  No. 
  691, 
  March 
  27, 
  1908. 
  

  

  