3Ö Art. 2.— T. Kaburaki: 



The vitelline glands are represented by branching cehuhu' 

 cords with cells usually arranged in several rows; they are very 

 extensively distributed posteriorly h'om the region of the ovaries 

 and in the interstices between the gut diverticulae, thus exhibiting 

 little room left for parenchyma. The connexion of the organs 

 with the oviducts takes place at intervals tlnoughout their length. 

 The cells of the vitelline glands are of moderately large size and 

 are pressed against one another, thus presenting an irregular 

 contour. The nucleus is smaller in proportion to the size of 

 the cells. In the cytoplasm lightly refractive granules occur 

 abundantly exhibiting an affinity for eosin. 



The ampullaceous part of the oviduct soon takes the character 

 of a narrow tube running backwards just outside the longitudinal 

 nerve cord. In the region of the penis the ovi(hK*t gradually 

 nears the median line, rising upwards at the same time, and 

 finally unites with its mate of the (»pposite side into an unpaired 

 common duct on the dorsal side of the penis-slieath. The common 

 duct opens into the genital vestibulum, supplied with a large 

 number of unicellular glands. The direct wall of the oviduct is 

 an epithelium made up of ciliated and nucleated cells, outside 

 which comes a feeble nuiscular layer of circular fibres. As already 

 stated, the oviduct receives the vitelline glands at several points. 

 So far as my observation goes, the latter appears to connect with 

 slight projections of the former. 



The seminal receptacle is an U-shaped oi'gan lying dorsally 

 just anterior to the penis and clasping from behind the posterior 

 end of the phar^mgeal chamber. Its wall is made np of an epithe- 

 lium of columnar cells of a glandular nature, resting upon a tine 

 basement membrane, external to which lie moderately well- 

 developed muscular layers of circular and longitudinal fibres. The 

 appearance of the cells is subject to variation according to their 

 secretory activity; the protoplasm may be either mostly homogene- 

 ous and deeply s'ainable, or contains some coarse granules. 



From the hind end of the receptacle arises the vaginal canal, 

 which runs backwards over the penis-sheath somewhat to the right 

 of the mediniî line and then dips below to open into the ves- 



