The Opisthobranchiata of South Africa. 93 



slightly nodular, over the middle of their height a blackish gray mass 

 shone through, up to this rose a thin-walled even tube ; the point of 

 the organs often flattened, and with a follicle/' 1 ' 



The renal mass behind the liver " being a network of tubes " t as 

 in other Janidse. 



The hermaphrodite gland yellowish, lying to the right, embraced 

 by the transverse and descending part of the intestine (fig. 20), 

 roundish in circumference with a diameter of 10 mm., 6 mm. thick ; 

 the under side distinctly divided into some large lobes radiating 

 from the centre ; the thin whitish efferent duct issues from this deep 

 centre. In the whitish lobules ripe genital elements. The anterior 

 genital mass yellowish and yellow brown, somewhat compressed, 

 7 mm. long and high by a thickness of 5, on its inside a large coil of 

 windings of the ampulla of the hermaphrodite duct ; the white 

 seminal vesicle, globular, 2 mm. in diameter. The yellowish penis 

 (fig. 21) nearly cylindrical, its upper end recurved, 12 mm. long 

 by a diameter of 2, consisting of the praeputium, that shows many 

 folds of the inside and at the bottom of its cavity a small whitish 

 glans. 



This form is certainly specifically different from the other known 

 Janoli, in the epinotidia and its distinctive mandibles. 



Off Cape Port Lighthouse (SW. by W., 4-J miles) a specimen 

 very likely of the same species was procured by shrimp-trawl 

 (December 5, 1902) from a depth of 29 fms. on fine sand bottom. 

 The epinotidia are said to have been " red tipped." 



The specimen had a length of 3*5 cm. and resembled the former, 

 only the epinotidia had fallen off (not being left in the bottle) with 

 the exception of those of the outermost series, where they had a 

 length of 0-5-1-25 mm. 



The bulbus pharyngeals 13 mm. long by a breadth of 11 and a 

 height of 4-5. The mandibles not so high and the furrows on the 

 outside and inside not so deep. The lingual plates longer than in 

 the former specimen. The oesophagus, the intestine and the liver 

 as described. 



The position and form of the hermaphrodite gland as well as the 

 anterior genital mass as described. 



An additional specimen was procured off Buffalo Bay " by shrimp- 



* According to Alder and Hancock (I.e., Part 5, 1851) a distinct external orifice 

 was visible in the living state in Antiopa cristata. Cf., too, my " Beitr. zur 

 Kenntn. der iEolidiaden," L, I.e., 1874, I.e., p. 604, note 3. 



f Alder and Hancock, I.e., pi. 43, fig. 1, ii, lili. 



