﻿CATALOGUE 



POLYPES AND THEIR CORALS. 



Class POLYPES oe COEALLIARIA. 



Mouth central, surrounded by tentacles, without 

 any distmct vent; tentacles tubular and placed in a 

 circle, so as to communicate freely with the visceral 

 cavity. 



Body hollow, consisting of a single cavity, all the 

 parts communicating with each other and with the 

 exterior. 



The organ of generation "internal, and placed in the 

 general cavity. 



Marine. 



Coralliaires, §1. Onidaires, Milne-Edw. Sf Haimej Coralliaires,i. p. 93. 

 Cnidaria or Polypi, Verrill, Proc. Essex Institute, 18(35, p. 19. 



The following arrangements have been proposed : — 



M. de Blainville, article Zoophytes, Diet. Sci. Nat. Ix. 1S;>0, and 

 Manuel d'Actinologie, 8vo, 1834, as follows : — 



Classe III. Les Zoantiiaires {Zoantha). 

 Faui. I, Les Zoanthaires mous ou Acfiniex. 

 Fani. II. Les Zoanthaires coriaces : Zoanthus &c. 



Fam. III. Les Zoanthaires jiierreux = M.AAve\wv!i, Linn.: 1. Les Madrepliyllies, 

 2. Les Uradi'astres, 3. Les Madi-epoi-es. 



B 



