208 



S. GOTO. 



yk. duct. 



Wood-cut 1. — Diolidophora smaris, Ijima. Eeproduced 

 after a Drawing by Prof. Ijima. 



small caudal disc bearing 

 on its margin the toler- 

 ably long pedicels of the 

 circular posterior suck- 

 ers. The anterior portion 

 which is, roughly speak- 

 ing, a little less than 

 one-third the total length 

 of the body, is 0.25- 

 0.30 mm. broad in the 

 middle part, and in some 

 specimens a circular fold- 

 ing of the surface of the 

 body was present just in 

 front of the pharynx. 

 The middle portion mea- 

 sures, where it is broad- 

 est, viz., a little behind 

 the ovary, 2.25 mm. 

 The caudal disc is at 

 its anterior end about 

 1.00 mm. wide. The 

 first pair of sucker- 

 pedicels lies in a straight 

 line at right angles to 

 the long axis of the 

 body, and the rounded 

 angles between each two 

 successive pedicels are 

 equal to one another; the 

 pedicels are cylindrical. 



