﻿256 
  Thirtieth 
  Report 
  on 
  the 
  State 
  Museum. 
  

  

  usually 
  occurring 
  singly, 
  it 
  is 
  evident 
  from 
  the 
  figure 
  given 
  in 
  

   the 
  Report 
  of 
  the 
  Fourth 
  Geological 
  District, 
  as 
  well 
  as 
  from 
  

   other 
  specimens 
  known, 
  that 
  they 
  may 
  grow 
  in 
  tufts. 
  No 
  

   evidence 
  of 
  fertile 
  cells 
  or 
  hydrothecse 
  has 
  been 
  seen, 
  and 
  no 
  

   distinct 
  serration 
  of 
  the 
  pinnulse 
  can 
  be 
  made 
  out 
  in 
  the 
  speci- 
  

   mens 
  examined. 
  From 
  certain 
  appearances 
  upon 
  some 
  speci- 
  

   mens, 
  I 
  infer 
  that 
  the 
  pinnulse 
  were 
  cylindrical, 
  and 
  probably 
  

   tubular, 
  their 
  present 
  appearance 
  being 
  due 
  to 
  extreme 
  com- 
  

   pression. 
  

  

  From 
  the 
  general 
  aspect 
  of 
  these 
  fossils, 
  they 
  appear 
  to 
  be 
  

   referable 
  to 
  the 
  family 
  Plumularidje, 
  and 
  their 
  forms 
  and 
  

   mode 
  of 
  growth 
  may 
  be 
  compared 
  with 
  some 
  species 
  of 
  Plu- 
  

   mularia 
  and 
  Aglaophenia. 
  

  

  