4 
ZOOPHYTES. 
Suborder IL— ALCYONARIA. 
Animals with. 8 tentacles ; tentacles papillose, papillae perfo- 
rate at apex : often coralligenous ; coralla calcareous or corneous 
rarelj siliceous, cells never radiate within. 
Family I. Pennatulid.®. Never attached, but either free or with the base 
buried in the mud. 
Genera. Renilla, Pennatula, Veretillum, Funiculina, Virgularia [Pennatu- 
lince)] Pavonaria, Umbellularia {Pavonarince). 
Family II. Alcyonid®. Fleshy, usually containing disseminated calcare- 
ous granules. 
Genera. Rhizoxenia, Anthelia, Xenia (Xenince) ; Ammothea, Sympodium, 
Nephthya, Alcyonium [Alcyonin(E)\ Spoggodia [Spoggodince). 
Family III. Cornularid®. Forming corneous tubular coralla. 
Genus. Cornularia. 
Family IV. Tubiporid®. Forming calcareous tubular coralla. 
Genera. Aulopora, Telesto, Tubipora, Syringopora(P). 
Family V. Gorgonid®. Forming basal epidermic secretions, and often, 
also, other tissue secretions, the latter separable from the former. 
Genera. Corallium ( Coralliinct) ; Hyalonema, Briareum, Gorgonia, Primnoa, 
Bebryce [Gorgonince] Isis, Mopsea, Melitsea {Isince). 
Order IL— HYDROIDEA. 
Animals with the internal cavity tubular and quite simple : 
ovules growing outward from the sides. 
Family I. Hybrid®. Ovules single ; buds lateral, young falling off when 
full grown : not coralligenous. 
Genus. Hydra. 
Family II. Sertularid®. Ovules enclosed in ovarian vesicles; buds 
lateral, persistent: coralla corneous, cal ides sessile. 
Genera. Antennularia, Plumularia, Sertularia, Thuiaria, Thoa, Pasythea. 
Family III. Campanularid®. Ovules enclosed in ovarian vesicles ; buds 
lateral, persistent; coralla corneous, calicles pedicellate. 
Genera. Laomedea, Campanularia. 
Family IV. Tubularid®. Caducous gemmules growing from near the 
base of the tentacles, and naked; often coralligenous, coralla corneous, 
tubular. 
Genera. Pennaria, Tubularia, Syncoryna, Corydendrium, Eudendrium, Co- 
ryna, Hydractinia. 
