ZOOLOGY. 267 



5. his. CoRAt. Aniraal assuming a plant-like appearance; 



stem stony, jointed, the joints longitudinally striated, 

 united by spongy or horny junctures, and covered by a 

 soft cellular bark, the ce/^s beset with oyi^VLtow?, polypes. 



6. Antipathes. Animal growing in the form of a plant ; 



stem expanding at the base=, internally tough and horny, 

 beset with small spines ; externally covered with a 

 gelatinous bark, covered with numerous ^jo/i/pe-&e«r2??«- 

 tubercles. 



7. Gorgonia, Venus's-F^^x. Animal assuming a p^a?i^-///ie 



form'; stem coriaceous, woody, horny or bony, com- 

 posed of stone-like fibres, striated, tapering, dilated at 

 the base ; covered with a vascular or cellular bark, 

 becoming when dry spo73gy aiid friable ; the surface of 

 the stem beset ^s\ih. polppe-bearing movxh^ or florets. 



8. Aktioniiim. Animal plant-like ; stem fixed, fleshy, 



gelatinous, spongy, or coriaceous, beset with polype- 

 bearing stellate cells. 



2. Spongia. Sponge. Animal fixed, flexile, of various forms, 

 composed of reticulated fibres, or masses of small spines 

 interwoven together, and covered with a gelatinous 

 flesh, full of small mouths on its surface, by means of 

 which it absorbs and rejects water. 



10. Flustra. Horn wrack. Animal a polype, proceeding 

 from porous c'c//^; stem fixed, foliaccous, membrana- 

 ceous, consisting of numerous rows of cells, united to- 

 gether, and interwoven like a mat. 



