The Opisthobranchiata of South Africa. 29 



12. D. obscurum, B. 



M. pacific. 



13. D. albo-ventrale, B. 



M. pacific. 



14. D. Gardineri, Eliot. 



M. pacific. 



15. D. reticulatum, Eliot. 



M. africano -indie. 



II. Chelidonuba, A. Adams. 



Chelidonura, Ad. E. Bergh, Die Opisthobranchier (Schauinsland, 

 Ergebn. einer Eeise). Zool. Jahrb., xiii., 1900, pp. 212-220. 

 — E. Bergh, I.e., 1905, pp. 42-46. 



? Navarchus, Cooper. E. Bergh, I.e. (Albatross), 1894, pp. 213-222. 



1. Chelid. hirundinina (Q. & G.), var. elegans, B. 



,, ,, (Q. & G.), var. punctata, Eliot. 



M. pacific et africano-indic. 



2. Ch. inermis (Cooper). 



M. pacific. (Calif.). 



3. Ch. anigmatica (B.). 



M. pacific. (Panama). 



4. Ch. plebeia, B. 



M. pacific. 



5. Ch. various, Eliot. 



M. africano-indic. 



6. Ch. velutina, B. (Siboga-Exped., 1905). 



M. indie. 



7. Ch. philinopsis, Eliot. 



M. africano-indic. 



8. Ch. amcena, B. (1905). 



M. indie. 



DOEIDIUM CAPENSE, B. n. Sp. 



One individual was captured on the shore at East London 

 (23.5.02). Preserved in formalin it still had the largest part of a 

 2 5 cm. long Annelide hanging out of the retracted mouth. 



It measured to the end of the hinder wings 5 cm. in length by a 

 breadth (with raised foot-lobes) of 1*8 and a height of 1*9; the 

 length of the anterior shield was 2*2 cm., its hinder end projected 

 freely 6 mm. ; the wings of the hinder shield 10 mm. long ; the 

 proper foot 13 mm. broad, its wings 8 mm. high, the tail 8 mm. long. 

 The animal was nearly uniformly coloured grayish white (but had 



