90 Transactions of the South African Philosophical Society. 



III. Peoctonotus, A. et H. 

 Alder et Hanc, Nudibr. moll., Part ii., 1845. Fam. 3, pi. 42. 



Ehinophoria simplicia, crista interrhinophorialis nulla; anus 

 dorsalis. 



Margo masticatorius non dentatus. Eadula multiseriata. 

 1. Pr. mucroniferus, A. et H. 

 M. Atlant. 



IV. Madrella, A. et H. 

 A. et Hanc, Notice, I.e., v., 3, 1864, pp. 141-142. 

 Vayssiere, Bech. — sur les Opisthobranches, 1903, pp. 88-92. 



Ehinophoria papillata, crista interrhinophorialis nulla; anus 

 lateralis. 



Margo masticatorius non dentatus. Eadula triseriata. 



1. M. ferruginosa, A. et H. 



Eliot, Nudibranchs from Zanzibar, i. I.e., 1902. p. 71. pi. vii., 



figs. 14-16. 



M. Indie. 



2. M. aurantiaca, Vayss. 



M. Mediterr. 



Janolus capensis, B. n. sp. 

 PI. VII., figs. 6-21. 



One specimen was procured at " Eocky Bank," False Bay, by 

 dredge (17-27 fms.) on rocky bottom, October 8, 1902 ; it was 

 rather hardened. 



It was 3 cm. long by a breadth of 1*5 and a height of 1*3 cm. ; the 

 height of the rhinophoria 5 mm., the length of the tentacles 3, the 

 height of the dorsal papillae 4 and of the anus 3 mm. ; the sides of 

 the body at the middle 5 mm. high ; the breadth of the foot 12 mm., of 

 its brim 2 and the length of the tail 2 mm. — The animal was uniformly 

 coloured whitish yellow ; the papillae and the anus nearly colourless, 

 semi-pellucid. The liver shone brownish through the back and the 

 intestine whitish. 



The form of the body as in other Janidae. The mouth tube was 

 turned up, the anterior of the bulbus pharyngeus somewhat promi- 

 nent, the form of the head rather broad and its tentacles finger- 

 shaped ; the relations of the head to the foot quite as in other 

 Janidae.' 1 ' The inter-rhinophorial crest median on the neck, not 



* Cf. R. Bergh, " Beitr. zur Kenntn. d. iEolidiaden," 1. 1874, I.e., p. 599, 

 tab. vii., fig. 16. 



