﻿!^8 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  PLATE 
  4 
  

  

  Continuation 
  of 
  the 
  illustration 
  of 
  Pleurodictyum 
  and 
  Hicetes, 
  

   etc. 
  

   1,2 
  Sections 
  of 
  P. 
  styloporum 
  showing 
  not 
  only 
  the 
  large 
  

   worm 
  but 
  the 
  smaller 
  ones 
  in 
  the 
  thickened 
  base 
  of 
  the 
  coral 
  

  

  3 
  An 
  etching 
  of 
  P. 
  styloporum 
  showing 
  actual 
  attach- 
  

  

  ment 
  of 
  the 
  worm 
  tube 
  Hicetes 
  to 
  the 
  surface 
  of 
  the 
  gas- 
  

   tropod 
  Loxonema 
  

  

  4 
  The 
  tube 
  Hicetes 
  penetrating 
  one 
  polyp 
  cell 
  and 
  passing 
  thence 
  

  

  into 
  another 
  

  

  5 
  The 
  small 
  sponge 
  found 
  in 
  the 
  tube 
  of 
  the 
  large 
  worm 
  Hicetes 
  

  

  6 
  Chonetessarcinulatus 
  Goldfuss, 
  the 
  brachiopod 
  

  

  to 
  which 
  P. 
  problematicum 
  usually 
  is 
  attached. 
  

   (After 
  F. 
  Roemer) 
  

  

  7 
  The 
  greatly 
  enlarged 
  interior 
  surface 
  of 
  the 
  worm 
  tube 
  

  

  Hicetes 
  with 
  slender 
  serpulid 
  worm 
  tubes 
  attached 
  

  

  8 
  The 
  enlarged 
  surface 
  of 
  part 
  of 
  a 
  Loxonema, 
  covered 
  with 
  

  

  small 
  serpulids. 
  This 
  specimen 
  of 
  Loxonema 
  had 
  served 
  

   as 
  base 
  of 
  attachment 
  for 
  P. 
  styloporum. 
  

  

  9 
  Loxonema 
  hamiltoniae 
  Hall 
  

  

  