46 



Art. 2.— T. Kaburaki : 



inner side of tlie longitudinal nerve cords. At the sides of the 

 penis they gradually bend inwards and upwards, finally to open 

 separately into the seminal vesicle. 



In the penis there can be distinguislied the conical intro- 

 mittent part, Ij'ing horizontally in the penis-sheath, and the 

 spherical bulbous part of muscular nature, which contains a wide 

 lumen of an irregular contour, the seminal vesicle. The vesicle 

 gives rise behind to the moderately wide ejaculatory duct, which 

 opens at the tip of the penis. Embedded in the parenchyma 

 around the penis are numerous eosinophil glands, wliich make 

 their way into the lumen of the penis. 



gv ^o 



Text fig. 14. Diagrammatic representation of sexual organs of PoUjcelis ijimai 

 Kab in sagittal section. 

 ic intestinal commissure. 

 Other letters as in text figs 2, 5 and 6. 



The paired ovary, which is of an irregular shape, is placed 

 behind the brain, one on either side close to the inner side of 

 the longitudinal nerve cord and betw^een the first and second pairs 

 of the gut branches. At the postero-lateral aspect the oviduct 

 leaves the ovary in the form of a funnel-hke Avidening, which soon 

 assumes the character of a slender duct and proceeds backwards 

 just outside the longitudinal nerve cord, receiving the vitelline 

 glands at numerous points. The viteUine glands are represented 

 by l)ranching cellular cords with cells arranged in single or double 

 rows. The mode of the connexion of the glands with the oviduct 



