CLASSIFICATION OF ZOOPHYTES. [ ] 9 



FAMILY II. SERTULARIU.E. Ovules enclosed in ovarian vesicles ; buds lateral, per- 

 sistent : coralla corneous, calicles sessile. 



Genera. Antennularia, Plumularia, Sertularia, Thuiaria, Thoa, Pasythea. 



FAMILY III. CAMPANULARID.E. Ovules enclosed in ovarian vesicles ; buds lateral, 

 persistent ; coralla corneous, calicles pedicellate. 



Genera. Laomedea, Campanularia. 



FAMILY IV. TL-BI-L.AIRID^E. Caducous gcmmules growing from near the base of the 

 tentacles, and naked ; often coralligenous, coralla corneous, tubular. 



Genera. Pennaria, Tubularia, Syncoryna, Corydendrium, Eudendrium, Coryna, Hy- 

 dractinia. 



HVLA, separating thus the fleshy species from the others ; the former including Lamarck's 

 orders, I., II., IV., and the latter, the remainder of his orders. The Zoophyta Heterohyla 

 are subdivided as follows : 



1. Lithoplii/ta nullipora. Nullipores, lately shown to be of vegetable nature, secre- 

 ting lime. 



2. Lithophyta porosa. The Madrepore tribe, excluding the Favosites and Catcnipora?. 



3. Lithophyta lamellosa. The coralligenous Astrceacea and Caryophyllacea. 



4. Lithophyta jbtuhua. Lamarck's "Polypiers foramines." 



5. Ceratophyta sjjo/igiosa. Sponges, and some Alcyonida?. 



6. Ceratophyta tubulosa. The Hydroidea (excluding the Hydridre), the Tubularidse 

 in part, and some of the Bryozoa. 



7. Ceratopliyt.a foliacca. Bryozoa. 



8. Ceratophyta corticosa. The Antipathi and Gorgonidcc. 



9. Pennce marina;. The Pennatulidffi. 



BLAINVILLE. Blainville includes under the name Zoophytes, the fleshy Aclinice as 

 well as the coralligenous species, and also the Echinoderms, Acalephce, and Sponges. 

 The Sponges constitute his " Amorphozoaires" and the other species, the " Aclinozo- 

 aires." The " Actinozoaires" are distributed as follows : 



CLASS I. " CIRRHODKRMAIRES," including the Echinoderms. 



CLASS II. " AHACIINODERMAIHES." The Acalcphir. 



CLASS III. " ZOANTIIAIHES." The Actinidoc, Zoanthidas, together with the coralligenous 

 Astra?acca, Caryophyllacea, and Madreporacea, excluding from the last the Antipathi, 

 Milleporse, and Favosites, nearly as was done by Lamarck. 



CLASS IV. " POLYPIAIRES." Includes the Milleporm, under which name Blainville 

 follows Lamouroux in comprising various unallied genera, characterized by the small 

 non-radiate cells of the corallum ; and in other divisions, the Bryozoa and Hydroidea. 



CLASS V. " Zooi'iiYTAiREs." Corresponding to the Alcyonaria. 



We perceive in this classification a great advance beyond those preceding it. The 

 Alcyonaria, before widely distributed, are here united in a single group : the Actinidoc 

 are arranged with the coral polyps ; the Bryozoa are mostly grouped together, and the 

 Hydroidea arc brought into close association, although still the Hydra forms a sub-class 

 next to the Sertularidaj, instead of being united with them. 



EHRENBKHC. Khrcnberg divides Zoophytes his Anthozoa into the two orders, 

 Zoocorallia and Phytocorallia. The former, " Animal Zoophytes" contains the fleshy 



