]^Q Art, 4. — T. Kaburaki : 



The vitelline glands are represented by cellular cords with the 

 cells closely packed; they extensively fill up tlie interspaces be- 

 'tween the gut branches and are in connexion with the oviduct at 

 numerous points by means of tlie short branches. Slightly behind 

 the genital aperture, tlie oviduct nears the median line, rising up- 

 wards at the same time, and finally unites with its mate of the 

 opposite side on the dorsal side of the vestibulum, to form a short 

 common duct which soon communicates with the glandular organ 

 from behind. The oviduct is lined with a ciliated epithelium, ex- 

 ternal to which comes a musculai" layer of circular fibres, 



The glandular organ is a body, embedded in the muscular 

 sheath of the vestibulum, and is lined with an epithelium made up 

 of high columnar cells of a glandular nature. Anteriorly it com- 

 municates with the tubular passage oî the penis-sheath, just before 

 opening into the vestibulum. 



Note : — The present species is nearly allied to B. simplex von 

 Graff recorded from the island of Sunda, but may be distinguished 

 from this in the colouration of the head. 



8. üipaHutn hisoenais, ii. sp. 



(PI. I., Fig. 11.— Text %s. 7, 8.) 



This new species is founded on seven individuals which were 

 procured by the late Professor Ijima in 1889 in Kiso. 



■ The head in the preserved state presents a small semi-lunar 

 shape and is less than the width of the trunk, from which it is only 

 marked ofï by a neck-like constriction. The trunk is nearly oval 

 in cross section and has the lateral margins even and nearly parallel 

 for a large part of the body-length, but is tapering in the hind parts 

 to the rounded hind end of the body. The ventral surface is made 

 up of a slightly raised sole, extending almost throughout the entire 

 length of the body and rather less than one-third the breadth of 

 ihe body. Well-grown specimens measure 30-35 mm. in length 

 and 5 mm. in breadth. 



