256 



ZOOLOGY 



int 



znt 



Fio. 19S. — Gunda segmentata. General view of the organisation, br. brain ; eye eye ; 

 gen. ap. genital aperture ; int. intestine with its cseca ; long. ne. longitudinal nerve-cord ; 

 ov. ovary ; ovd. oviduct : pe. penis ; ph. pharynx ; te. testes ; ut. uterus. (After hang.) 



