IV 



PHYLUM CCELENTERATA 



199 



FIG- 147. Peimatula sulcata. A, entire colony; B, portion of the same magnified. 

 /. lateral branch ; p. polype ; s. siphonozooid. (After Koelliker.) 



t.-m> 





FIG. 14S. Tubipora musica. A, skeleton of entire colony ; B, transverse sections of polype ; 

 C. single polype with tube and commencement of platform ; I), growth of new polypes from 

 platform. /. /. longitudinal muscles ; pi. p'*. polypes ; pi. platform ; MI ph. siphonoglyphe ; sp. 

 spicules ; std. stomocUeum. (After Cuvier, Quoy and Gaimard, and Hickson.) 



