CLASSIFICATION OF ZOOPHYTES. US 



Genera. Euphvllia, Ctcnnphvllia, Miissa, Manicina, Caulastrfpa, Tridaeophyllia, 

 Astrsea, Meandrina, Mfintieuiaria, Pliyllastrffa, Mcruliiia, Ecliinopora. 



Family IK. Fuxcid-E. Coralligenous ; disks not circumscribed, tentacles scattered, 

 sliort, and often obsolete : simple or aggregato-gemmatc ; when aggregate, the disks 

 every way confluent without interstices : coralla, generally with a stellate surface, and 

 \\ ithijut iMM])er cells ; lamcllce, in aggregate species, continuous between adjacent polvp- 

 ccntres. 



Genera. Fungia, Cyclolites, Herpetolithus, Halomitra, PoIvphvUia, Zoopilus, Pavcnia, 

 Agaricia, Psamnincora. 



Tribe II — CARYOPHYLLACEA. 



Polyps having numerous tentacle.s in two or more series : mostly 

 gemmiparous, gemmation inferior, buds lateral; rarely (as in some 

 Cyathophyllidae) growing upward above the summit of the parent, 

 but summits of polyps (the disks or adjoining margins) not prolate: 

 generally coralligenous; coralla calcareous, cells tnany-rayed, inter- 

 stitial surface not lamello-striate. 



Family I. Cyathopiiyllid.e. Coralligcn ms, the corallum of each polvp internally 

 at middle, usually transversely or obliquely cellular. 



Genera. Cyathophylluni, Calophyllum, Ample.xus, Caninia, Arachnophylluni, Acer- 

 vularia, Cystiophyllum, Clisiophylluni, Miehelinia, Columnaria, Sarcinula. 



Family II. Caryophyllidje. Coralligenous; tentacles crowded and long, mruths 

 long exsert ; corallum internally not transversely cellular; cells many-rayed (rays more 

 than twelve), margin of caliclcs thin, interstices not lamello-striate. (Lamella; nearly or 

 quite entire.) 



Genera. Ecmesus, Cyathina, Stephannphyllia, Turbinalia, Dosmophyllum, Culicia, 

 Caryophyllia, Dendrophyllia, Oculina, AnthjphjUum, Stylina, Astroitis. 



Family III. Gemmiporid^e. Coralligenous, ten'acles short, marginal, in 2 to 3 series, 

 disk broad and a little convex: coralla porous; caliclcs with a stout margin, lamolliE 

 even and not exsert. 



Genera. Gemmipora, Astrseopora (!). 



Family IV. Zoanthid.e. Not coralligenous, exterior subcoriaceous ; tentacles short, 

 marginal, in 2 or 3 series; disk often convex with the margin radiateh' striate and some- 

 times much reflexcd. 



Genera. Isaura, Zoantha, Palythoa. 



Tribe IIL— MADREPORACEA. 



Tentacles in a single series, 12 (rarely more), sometimes obsolete; 

 genmiiparous, gemmation lateral : coralligenous, coralla calcareous, 

 cells quite small, rays 6 to 12 or obsolete ; interstitial surface not 

 lamello-striate. 



Family I. Madrepgridj^. Polyps with 12 tentacles, not secreting lime at middle 

 part of base ; and hence the cells deep, extending to the centre of the corallum. 

 Genera. Madrepora, Manopora. 



