﻿2 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol. 
  ttT 
  

  

  The 
  length 
  of 
  the 
  prostomium 
  (fig. 
  1) 
  is 
  about 
  equal 
  to 
  its 
  great- 
  

   est 
  width, 
  which 
  is 
  at 
  the 
  level 
  of 
  the 
  posterior 
  pair 
  of 
  eyes. 
  The 
  

   median 
  cleft 
  is 
  not 
  very 
  prominent, 
  and 
  the 
  apices 
  are 
  rounded 
  with 
  

   no 
  trace 
  of 
  pointed 
  peaks. 
  The 
  posterior 
  pair 
  of 
  eyes 
  are 
  large 
  and 
  

   prominent, 
  the 
  anterior 
  pair 
  equal 
  to 
  these 
  in 
  size 
  but 
  because 
  of 
  

   their 
  position 
  on 
  the 
  sides 
  of 
  the 
  prostomium 
  are 
  barely 
  visible 
  from 
  

   above. 
  

  

  The 
  cirrophore 
  of 
  the 
  median 
  tentacle 
  is 
  very 
  large 
  and 
  about 
  

   one-third 
  to 
  one-fourth 
  as 
  long 
  as 
  the 
  style. 
  The 
  latter 
  tapers 
  only 
  

   very 
  gradually 
  toward 
  the 
  apex, 
  but 
  suddenly 
  narrows 
  and 
  ends 
  in 
  

   a 
  long 
  slender 
  terminal 
  filament. 
  The 
  cirrophore 
  is 
  colored 
  a 
  dark 
  

   brown 
  and 
  this 
  color 
  is 
  continued 
  on 
  to 
  the 
  style, 
  becoming 
  more 
  

   intense 
  toward 
  the 
  end. 
  The 
  extreme 
  apex 
  of 
  the 
  style 
  and 
  the 
  ter- 
  

  

  Figs. 
  1-4.— 
  Enipo 
  orrata, 
  l, 
  Anterior 
  end 
  X 
  12.5; 
  2, 
  15th 
  parapodidm 
  X 
  22.5; 
  3, 
  Parapodium 
  from 
  

   somite 
  52 
  X 
  22.5; 
  4, 
  ventral 
  seta 
  X 
  250 
  

  

  minal 
  filament 
  are 
  colorless. 
  The 
  lateral 
  tentacles 
  resemble 
  the 
  

   median 
  in 
  outline, 
  but 
  are 
  lighter 
  in 
  color 
  and 
  the 
  narrowing 
  to 
  form 
  

   the 
  terminal 
  filament 
  is 
  much 
  less 
  marked. 
  They 
  are 
  slender 
  and 
  

   very 
  short, 
  hardly 
  longer 
  than 
  the 
  cirrophore 
  of 
  the 
  median 
  ten- 
  

   tacle. 
  

  

  The 
  left 
  palp 
  is 
  lost. 
  That 
  on 
  the 
  right 
  side 
  is 
  colorless, 
  not 
  very 
  

   stout 
  and 
  extends 
  about 
  as 
  far 
  as 
  the 
  median 
  tentacle. 
  The 
  tentac- 
  

   ular 
  cirri 
  resemble 
  the 
  lateral 
  tentacles 
  in 
  form 
  and 
  color. 
  

  

  The 
  body 
  in 
  general 
  is 
  faintly 
  tinged 
  with 
  brown, 
  but 
  there 
  is 
  very 
  

   little 
  definite 
  pigmentation. 
  On 
  the 
  third 
  somite 
  are 
  short 
  transverse 
  

   bands 
  in 
  the 
  mid-dorsal 
  line, 
  and 
  these 
  are 
  repeated 
  in 
  subsequent 
  

   somites 
  up 
  to 
  the 
  ninth, 
  becoming 
  much 
  broader 
  in 
  the 
  latter 
  somites 
  

  

  