158 TABULATE CORALS. 



added that the reference of the genus by Milne-Edwards and 

 Haime to the Halysitidce, in the vicinity of Syringopora, is based 

 upon a soHd foundation of structural likeness, since the connect- 

 incr-floors of CJwnostezites are the homologrues of the hollow 

 connecting-tubes in Syringopora, and the genus thus forms a 

 true link between Michelhiia and Syringopo7'a. 



Formation and Locality. — Not uncommon in the Corniferous 

 Limestone of Walpole, Ontario. 



