TABULAR VIEW OF THE CLASSIFICATION OF ZOOPHYTES. 



ZOOPHYTES. 



Animals of the class Radiata : usually attached at base : having a 

 coronet of tentacles above, and an edentate mouth at the centre : 

 within, an alimentary cavity, to which the mouth is the only opening: 

 androgynous ; gemmiparous and oviparous : nerves indistinct (?) : cir- 

 culation very imperfect : no special organs of sense. 



Order I— ACTINOIDEA. 



Visceral cavity enclosing the stomach, and divided into compart- 

 ments by radiated lamellse, having reproductive functions; ovules 

 ejected through the mouth. 



Suborder I.— ACTJNARIA. 



Tentacles 6, 12, or more, in number, not papillose, (with few ex- 

 ceptions,) and perforate at apex: often coralligenous ; coralla calca- 

 reous, very rarely corneous, cells radiate with lamellse. 



TiiiBE I.— ASTR_^3ACEA. 



Tentacles many, in imperfect series or scattered ; when gemmi- 

 parous, gemmation superior, the polyps widening above: often coral- 

 ligenous; coralla calcareous, cells multiradiate, lamellfe prolonged 

 outward beyond the cells, and hence the surface in aggregate coralla 

 is lamello-striate. 



Family I. Actinid.is. Not coralligenous, usually attached. 



Genera. Actinia, Antlica, Adamsia, Edwardsia, Ilyanthus, Capnea, Actinecta, Epi- 

 cystis, Actinodendrum, Lucernaria, Metridium, Actineria,Heterodactyla, Epicladia. 



Family II. Astr.eid.e. Calcareo-coralligenous ; tentacles arranged along the mar- 

 gin of the disks; disks sometimes confluent in simple series; coralla, with excavate cells, 

 stars circumscribed, sometimes lobed or linear; lamellfe, in aggregate coralla, interrupted 

 usually along the middle of the septa. 



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