﻿142 
  

  

  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  hexagonal, 
  not 
  rounded 
  and 
  varying 
  in 
  size 
  according 
  to 
  age 
  of 
  

   individual; 
  septal 
  spines 
  in 
  one 
  or 
  more 
  rows. 
  

  

  'i^^-_. 
  

  

  Fig. 
  36 
  Favosites 
  pyriformis 
  

  

  

  VVMf 
  

  

  Found 
  in 
  the 
  Rochester 
  shale 
  and 
  Lockport 
  limestone 
  at 
  Lock- 
  

   port 
  (Hall). 
  Probably 
  occurs 
  also 
  at 
  Niagara. 
  

  

  Favosites 
  constrictus 
  (Hall) 
  (Fig. 
  37). 
  A 
  s- 
  

   trocerium 
  constrictum 
  Hall 
  (1852, 
  

   Pal. 
  N. 
  Y. 
  2:123, 
  pi. 
  34A) 
  

  

  Distinguishing 
  characters. 
  Small 
  size; 
  

   hemispheric 
  form; 
  minute 
  corallites 
  which 
  

   appear 
  constricted 
  at 
  intervals; 
  calyxes 
  ap- 
  

   pear 
  stellate. 
  

  

  Found 
  in 
  the 
  Rochester 
  shale 
  at 
  Lock- 
  

   port 
  and 
  other 
  places 
  (Hall). 
  Probably 
  also 
  at 
  Niagara. 
  

  

  Favosites 
  niagarensis 
  Hall 
  (Fig. 
  38) 
  (1852. 
  Pal. 
  N. 
  Y. 
  2:125,, 
  

   Pl. 
  34A) 
  

  

  Distinguishing 
  characters. 
  Spheroidal 
  to 
  irregular 
  form, 
  rapidly 
  

   increasing 
  in 
  size 
  by 
  interstitial 
  addition 
  of 
  corallites; 
  thin 
  walled 
  

   corallites 
  with 
  mural 
  pores 
  in 
  double 
  rows; 
  tabulae 
  often 
  oblique 
  

   or 
  bent 
  downward; 
  calyxes 
  varying 
  in 
  size 
  with 
  varying 
  age 
  of 
  in- 
  

   dividual; 
  septal 
  spines 
  obsolete. 
  

  

  Found 
  in 
  the 
  Lockport 
  limestone 
  at 
  Niagara 
  and 
  Lockport. 
  

  

  Fig. 
  37 
  Favosites 
  conslrictus; 
  

   a 
  group 
  of 
  corallites 
  enlarged, 
  

   and 
  enlargements 
  of 
  the 
  

   calyxes 
  

  

  