tend- 



avic- 



OPW 



Fig. ioi. — Bugula avicularia. Two zooids, magnified. an, anus; avic, avicularia; 

 emfa, embryo enclosed in the ocecium; funic, funiculus; gast % muscular bands 

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

 ocecium ; ces, oesophagus ; ov, ovary \ph, pharynx ; ret, pane to- vaginal muscles; 

 $p } spermatidia : stom, stomach. 



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