342 



ZOOLOGY 



and with them food-particles, towards the mouth {mo) : they are 

 also capable of being bent in various directions. In the interior of 



tent 



OJJIC- 



avw 



Pig. 276. — Bugula avicularia. Two zooids, magnified, an. anus ; avk. avicularia ; emb. 

 embryo enclosed in the ooecium ; funic, funiculus ; gaxt. muscular bands passing from the 

 stomach to the body- wall ; int. intestine ; mo. mouth ; ok. ooeciunu; ces. oesophagus ; ov. ovary ; 

 ph. pharynx ; ret. parieto- vaginal muscles ; sp. spermatidia ; stom. stomach ; lent, tentacles. 

 The ganglion, which is not indicated, lies just below the middle of the stroke from mo. 



each is a narrow prolongation of the coelome. In all probability, 

 besides bringing minute particles of food to the mouth of the zooid 

 by the action of their cilia, the tentacles are prehensile as well as 



