14 



Art. 4. — T. Kaburaki 



Text fig. 5. Distribution of eye- 

 spots in h'ipalium ochroleucuni, n. sp. 



Numerous eye-spots are distributed all round the margin of 

 the head and continued round to the sides of the neck, where they 

 are more ventral than dorsal and form a crowded cluster. P'urther, 

 the eye-spots are arranged in sparse numbers almost throughout 

 the wliole length of the body along the sides. 



The mouth-opening is situated 

 between the first and second thirds of 

 the body, leading into the peripharyn- 

 geal chamber. The pharynx was 

 proti"ude<l through the mouth-opening 

 as a creamy frill. 



The common genital aperture oc- 

 curs at a short distance behind the- 

 centre of the body. 



Tlie epidermis consists of a layer 

 of columnar cells, which are of a greater 

 height on the dorsal than on the ven- 

 tral side. The cilia are present on the surface of the sole only. 

 Situated between these cells, except for the surface of the sole, 

 are spindle-shaped rhabdites which are derived fiom their mother- 

 cells, scattered in the parenchyme deep below the epidermis. In 

 addition to the glands opening to the exterior on the surface of the 

 sale, there are some glands which open in scattered distribution 

 all over the surface of the body. 



The superficial muscular system underlying the fine basement 

 membrane is composed of the outer circular and the inner longi- 

 tudinal layer. The deep muscular system, whicli consists of 

 longitudinal and circular fibres, is w^ell developed all round in the 

 parenchyme as a thick and continuous sheet. Besides these, there 

 are well-developed dorso-ventral muscles which run between the 

 gut branches. 



The mouth-opening is situated near the centre of the peri- 

 pharyngeal chamber, in which is hanging the plicated pharynx from 

 above. The gut trunks give off numerous lateral branches which 

 are mostly bifurca'ed. 



