ü Art. 9. —M. Yerj and T. Kaburakt : 



course and receives the cluct of the prostate (pr). The conical 

 penis is of a small size and is vertically disposed in the penis 

 sheath, which opens externally through the short tubular antrum. 



After receiving as usual the uterine ducts, the median egg- 

 canal (ec) pursues a somewhat tortuous course before expanding 

 into the shell-gland passage {sgp) or the antrum femininum. 



The present species seems to be nearly allied to Stylochus 

 orientalis Bock (1913), but may be distinguished from it chiefly by 

 the eye-spots in different arrangement as well as hj the larger size 

 and the grayish orange colour of body. 



Genus JBerrj end alia Laidlaw 1903 (emend.). 



(Provisionally ranged under the Stylocliidœ). 



4. JBergendalia diver sa, n. sp. 



(PL II., fig. 15.— Textfigs. 6-8). 



This new species is represented by two individuals which were 

 captured at Shirahama in Prov. Awa near the low-tide mark, in 

 the summer of 1906. 



Body elongate-slender, moderately firm in texture, nearly 

 uniformly broad for the most part of its length, narrowed at both 

 its rounded or obtusely pointed ends. 35 mm. long by 6 mm. 

 broad. 



Dorsal surface of a grayish buff-pinkish colour, with a reddish 

 median streak which laterally gradually disappears. Ventral 

 surface much lighter coloured. 



Tentacles wanting. Numerous mar- 

 ginal eye-spots present in a row or rows 

 around the body; further, numerous 

 eye-spots densely distributed all over the 

 head end of body, as shown in text- 

 £ -V . ' \ figure G. 



Mouth situated slightly in front of 

 the middle of body. Pharyngeal chamber 

 Textfig: e. Eye-spots of Bergendaiia with numerous lobed diverticula. Main 



diversa. 



gut running in the median line and 



