tent 



avic- 



FIG. 95. Bulgula aviculaiia. Two zooids, magnified, an. anus ; avic. avicularia ; 

 einb. embryo enclosed in the ocecium ; funic. funiculus ; gast. muscular bands 

 passing from the stomach to the body-wall ; int. intestine ; mo. mouth ; 

 oaec. ooecium ; oes. oesophagus ; ov. ovary ; ph. pharynx ; ret. parieto-vaginal 

 muscles ; sp. spermatidia ; stotn. stomach. 



