CLASSIFICATION OF ZOOPHYTES, 115 
Genera. Euphyllia, Ctenophyllia, Mussa, Manicina, Caulastraea, Tridacophyllia, 
Astraa, Meandrina, Monticularia, Phyllastreea, Merulina, Echinopora. 
Faminy III. Funerp®. Coralligenous ; disks not circumscribed, tentacles scattered, 
short, and often obsolete: simple or aggregato-zemmate ; when aggregate, the disks 
every way confluent without interstices: coralla, generally with a stellate surface, and 
without proper cells; lamella, in aggregate species, continuous between adjacent polyp- 
centres, 
Genera. Fungia, Cyclolites, Herpetolithus, Halomitra, Polyphyllia, Zoopilus, Pavenia, 
Agaricia, Psammocora. 
Trise IL—CARYOPHYLLACEA. 
Polyps having numerous tentacles in two or more series: mostly 
gemmiparous, gemmation inferior, buds lateral ; rarely (as in some 
Cyathophyllide) growing upward above the summit of the parent, 
but summits of polyps (the disks or adjoining margins) not prolate : 
generally coralligenous ; coralla calcareous, cells many-rayed, inter- 
Stitial surface not lamello-striate. 
Famity I. Cyarnoruytiip%. Coralligenous, the corallum of each polyp internally 
at middle, usually transversely or obliquely cellular. 
Genera. Cyathophyllum, Calophyllum, Amplexus, Caninia, Arachnophyllum, Acer- 
vularia, Cystiophyllum, Clisiophyllum, Michelinia, Columnaria, Sarcinula. 
Famuty II. Caryornyiiiw%. Coralligenous; tentacles crowded and long, meuths 
long exsert; corallum internally not transversely cellular ; cells many-rayed (rays more 
than twelve), margin of calicles thin, interstices not lamello-striate. (Lamelle nearly or 
quite entire.) 
Genera. Ecmesus, Cyathina, Stephanophyllia, Turbinalia, Desmophyllum, Culicia, 
Carycphyllia, Dendrophyllia, Oculina, Anthophyllum, Stylina, Astroitis. 
Famity II]. Gemmrrorrpm. Coralligenous, tentacles short, marginal, in 2 to 3 series 
disk broad and a little convex: coralla porous ; calicles with a stout margin, lamellae 
? 
even and not exsert. 
Genera. Gemmipora, Astreopora (7). 
Famity IV. Zoantuipm. Not coralligenous, exterior subcoriaceous ; tentacles short, 
marginal, in 2 or 3 series; disk often convex with the margin radiately striate and some- 
times much reflexed. 
Genera. \saura, Zoantha, Palythoa. 
Trise II.—MADREPORACEA. 
Tentacles in a single series, 12 (rarely more), sometimes obsolete ; 
gemmiparous, gemmation lateral: coralligenous, coralla calcareous, 
cells quite small, rays 6 to 12 or obsolete; interstitial surface not 
lamello-striate. 
Famiry I. Mapreportpm. 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. 
