8. 



9. 

 10. 

 11. 

 12. 

 13. 

 14. 

 15. 

 16. 



89 



fur cat a. 



angidata. . . . South Sea. 



suhdigitata. . . . South Sea. 



cervina. . . . Indian Sea. 



verrucosa. . . . Mad. spongiosa? Sol. and Ellis, No. 49. 



tuberculosa. 



complanata. 



rosacea. . . . var. Mad. foliosse ? Sol. and Ellis, Tab. lii. 



spumosa. . . . Knorr. delic. Tab. A. I. fig. 4. 



Pocillopora, — A stony polypifer, plant-formed, ramose 

 or lobated ; the surface set with deep cellules, as if scooped 

 out, with porous interstices. 



The cells few, distinct, hollowed into pits, the edges 

 rarely prominent ; obsoletely stellated ; the lamellae very 

 narrow, sometimes none. 



The pocilliform shape of the cells, and the margins having 

 little or no projection, separate this genus from madrepora ; 

 and the depth and fewness of the lamellae distinguish it 

 from porites. 



1. Pocill. acM^a. .. .Mad. damicornis. Sol. and Ellis, No, 73. 



2. P. damicornis ... .VoiA. Pall. Zooph. p. 334. Var. A. B. 



3. — verrucosa. . . . Mad. verrucosa. Sol. and Ellis, No. 78. 



4. — brevicornis. . . . Indian Ocean. 



5. — fenestrata. . . . South Sea. 



6. — stigmataria. . . . Mad. muricata? Esp. Supp. i. Tab.liv. A. fig. 1. 



7. — ccerulea. . . . Mad. cserulea. Sol. and Ellis, Tab. xii. fig. 4. 



Madrepora. — A stony polypifer, fixed, subdendroidal, 

 ramified ; the surface furnished on every part with projecting, 

 muricated cells ; the interstices porous. 



The cells scattered, distinct, cylindrical, tubular, and 

 prominent ; hardly any stellae ; the lamellae of the internal 

 parietes very narrow. 



Linnaeus and Pallas, as is noticed by Lamarck, gave the 

 name of madrepores to all the lamellated polypifers ; in con- 

 sequence of which, bodies essentially different have been 



