﻿The 
  Faust 
  a 
  of 
  the 
  Niagara 
  Group, 
  185 
  

  

  This 
  species 
  is 
  allied 
  to 
  the 
  C. 
  arcuatus 
  of 
  Conrad, 
  from 
  the 
  

   Niagara 
  limestone 
  of 
  New 
  York, 
  in 
  which 
  the 
  annihilations 
  of 
  

   the 
  cast 
  are 
  more 
  rounded, 
  and 
  the 
  shell 
  more 
  rapidly 
  tapering.* 
  

  

  An 
  examination 
  of 
  the 
  original 
  specimens 
  of 
  T. 
  distans, 
  

   of 
  the 
  Clinton 
  group, 
  proves 
  it 
  to 
  be 
  a 
  Coencjlites, 
  and 
  it 
  

   will 
  therefore 
  be 
  indicated 
  as 
  Cornulites 
  distans. 
  

  

  *Jour. 
  Acad. 
  Nat. 
  Sci. 
  Phil., 
  vol. 
  viii, 
  p. 
  276, 
  pi. 
  17, 
  fig. 
  8. 
  

  

  