﻿i68 
  

  

  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  with 
  a 
  central 
  perforation 
  from 
  which 
  radiate 
  a 
  number 
  of 
  ridges, 
  

   giving 
  the 
  cells 
  often 
  a 
  radiately 
  septate 
  appearance; 
  mesopores 
  

   single, 
  in 
  groups 
  or 
  encircling 
  the 
  apertures. 
  

  

  1 
  

  

  mm 
  ■ 
  • 
  

  

  

  ^'rV 
  '• 
  __^ 
  

  

  i_i:i^^ 
  

  

  Fig. 
  67 
  Callopora 
  elegantula 
  with 
  enlargements 
  of 
  surface, 
  and 
  individual 
  tubes 
  

  

  Found 
  abundantly 
  in 
  the 
  Bryozoa 
  beds 
  of 
  the 
  Rochester 
  shale 
  at 
  

   Niagara. 
  Also 
  common 
  at 
  Lockport 
  (Hall). 
  

  

  Genus 
  phylloporina 
  Ulrich 
  

  

  [Ety.: 
  (puU(r>, 
  leaf; 
  -6po?, 
  pore] 
  

  

  * 
  (1890. 
  Geol. 
  stir. 
  Illinois, 
  8 
  1399, 
  639) 
  

  

  Zoarium 
  branching, 
  with 
  branches 
  irregularly 
  anastomosing, 
  with 
  

   two 
  to 
  eight 
  rows 
  of 
  apertures 
  on 
  one 
  side, 
  longitudinally 
  striated 
  

  

  Fig. 
  68 
  Phylloporina 
  asperato-striata 
  -with 
  enlargement 
  of 
  celluliferous 
  and 
  non-celluliferous 
  fiices, 
  

   the 
  latter 
  showing 
  the 
  asperate-striate 
  character 
  

  

  on 
  the 
  other; 
  zooecia 
  more 
  or 
  less 
  tubular, 
  often 
  with 
  diaphragms, 
  

   and 
  generally 
  separated 
  by 
  tabulated 
  interstitial 
  spaces, 
  which 
  are 
  

   closed 
  at 
  the 
  surface; 
  acanthppores 
  often 
  present. 
  

  

  