1 CONTENTS OF VOL. II. 



Order II. Intestine open at the mouth only. 



Tribe I. Stellerida, Asterias, Ophiura, Euryale, Co- 

 matula, . ... 609. 



Tribe II. Crinoidea. Pentacrinus, . 609 



Class II. Acalepha. 



Order I Base adhering. 1. Actinia, Zoanthus. 2. Lu- 



cernaria, . . . 6lQ 

 Order II. Base free. 



1. Tribe, without air-vessels. Velella, Porpita, Medusa, 

 Beroe, Pleurobrachia. . . . 6ll 



2, Tribe, with air-vessels. Physalia, Physsophora, Rhi- 

 zophyza, Stephanomja, 612 



Class III, Zoophyta. 



Order I. CARNOSA. 



Tribe I. Aggregated free animals. Pennatula, Vere- 

 tellum, Funiculina, Renilla, Virgularia, Umbellularia, . 618 



Tribe II. Aggregated animals fixed. Anthelia, Zenia, 

 Amothea, Lobularia, Cornularia, Spongia, Ephydatia, . 614 



Tribe III. Antipathes, Corallium. 614 



Tribe IV. Madrepora. 615 



Order II. 



1. Tribe. Millepora, Retipora, Corallinadae, Tubulipo- 

 ra, Tubipora, Cellipora, Eschara, Flustra, Cellularia, 

 Alcyonium, . . . .615 



2. Tribe. Sertularia, Tubularia, Alcyonium, . 6l6 



Order III. 



Coryna, Hydra, 6l6 



Order IV. 



1. Brachionus, Furcularia, &c. . 617 



2. Ratullus, Trichocerca. 617 



