History of British animals - University of Guam Marine Laboratory

(506)CARNOSA.I. Free; marine; moving by the contraction or expansion of the fleshypart; form symmetrical; axis of the body supported by a bonecontained in a sac.Pennatula.Virgularia.II.Fixed or stationary.A. Polypiferous matter covering a solid axis.a. Axis with stellular discs—LamelliferjE.b. Stellulai*, discs terminal.Sarcinula.Lithostrotion.Caryophyllea.Turbinolia.Cyclolites.aa.bb.Stellular discs aggregated.Explanaria.Astrea.Porites.Pocillopora.Axis destitute of stellular discs.b. Axis corneous and flexible ; polypiferous basis cretaceous ;the axis with spines.c.Polypi developed—GorgoniadjE.bb.cc.Gorgonia.Primnoa.Polypi not developed—CorallinadjE.Iania.Corallina.Halimeda.Axis stony.lsis.B. Polvpiferousbasis destitute of a continuous solid axis.a. Polypi developed.b.Polypi with eight tentacula ; the basis fibrous.Lobularia.Cydonium.Cliona.aa.bb. Polypi with tentacula exceeding eight in number ; basisnearly uniform.Alcyonium.Cristatella.Polypi not developed—SrONGiADiE.Tethya.mHalichondria.Spongia.Grantia.