234 î5- <^0T0. 



behind it at various distances. AYitli conico-cylin- 

 drical or club-sliaped penis. Testes two. With two 

 pairs of eye -spots. 



1. Epihdella Tshil^airac'-^, n. sp. 

 (PL XXYI, figs. 1-3.) 

 Bodif elong'ated-oval, fiat, about 4 mm. in length. Anterior suclccrs 

 nearl}^ circular, connected together by a tliin, membrancnis continuation 

 of the anterior end of tlie bod3\ I'osterior suclicr circular, -with a 

 marginal inembrane ; with three pairs of flattened liouhs of the 

 form represented in hg. 2, PI. XXA'I, in its posterior half. 

 Mouth small, a little in front of the plane of the posterior end of 

 tlie anterior suckers. Ocsophagiis w\anting. Intoitinal truuhs with 

 lateral branches, separate behind, ending at the plane of the front end 

 of the posterior sucker. Common fjcnital pore close to the left lateral 

 margin of the body, at the plane oî the mouth, just outside the 

 anterior sucker ; leading into a deep genital atrium, in which 

 lies the long, conico-cylindrical penis. Orarij comparatively small, 

 globular, situated in the median line, a little in front of the middle 

 of the body proper. Ocidnct arising from the ventral side of the 

 anterior end of the ovary, thence proceeding forwards with a few 

 slight windings and continued into the ootyp a- little l)ehind 

 the posterior end of the penis. The ooti/p is rhombic in horizontal 

 section, and opens into the genital atrium by means of an exceedingly 

 short neck. ViteUarittm extendi m»- from the level of the front end 

 of the pharynx to about the anterior end of the posterior sucker; that 

 of the two sides intermin2:linn: with each other behind the testes. 

 Paired yolk-dnct of each side formed by the union of two ducts coming 



1). Dedicated to Chiyomatsu Ishikawa, Ph. D., Ti-V/«/."«/"', lUgaliuhahisln,'Pvoîes- 

 sor of Zoology ia tlie Colleg-e of Agriculture, Imperial university, Tokyo. 



