638 SIH C. ELIOT ON NUDIBRANCHS [Juiie 19, 



The references in the present paper are made to the ' Annals & 

 Magazine ' as being moi-e accessible than the other jjublications, 

 and the three papers are cited as Kelaart, 1. c. I., II., and III. 

 Similar abbreviated references are : — 



A. & H. 1. c. = Alder and Hancock, " Notice of a Collection 

 of ISTudibranchiate Mollusca made in India by "Walter 

 Elliot, Esq.," in Trans. Zool. Soc. 1864. 



Fai^ran, 1. c. = Report on the Pearl-Oyster Fisheries of the 

 Gulf of Manaar : Royal Society, 1905. Supplementary 

 Report, xxi., " On the Opisthobranchiate Mollusca," by 

 G. P. Farran. 



Bergh, Siboga = Siboga-Expeditie. L. Opisthobranchia. R. 

 ^Bergh. 1905. 



The three editions of Kelaart's paper do not appear to contain 

 any difierences of importance, but the pamphlet opens with a 

 preface which gives little scientific information, but emphasises 

 the fact mentioned from time to time in his descriptions, that he 

 studied Nudibranchs by keeping them " in a glass vivarium," 

 often for considerable peiiods. He also quotes a long passage 

 from the ' English Oyclopredia ' I'especting the structure of 

 Nudibranchs. 



Besides these papers, Kelaart published a description and 

 figure of Trevehjana ceylonica under the title " Description of a 

 new Ceylonese ISTudibranch," in the Ann. & Mag, Nat. Hist. 1858, 

 vol. i. p. 257. 



My examination of these collections and drawings (supple- 

 mented in a few cases by other material) resvilts in notes on 

 64 species. Of the identifications suggested, I think the following 

 may be i-egai-ded as more or less certain : — 



1. Ilexahranchus margioiatus Q. & G. 1832 = Doris gloriosa 



Kelaart. 



2. Chromocloris diardii (Kelaart) = Chr. semperi Bergh, of which 



Chr. nigrostriata Eliot and Chr. temcilinearis Farran are 

 varieties. 



3. Casella maccarthyi (Kelaart) = C. cincta Bergh. 



4. Kentrodoris maculosa (Cuv.) = A'. annuligera Bergh = i)o?'^s 



fanehris Kelaart. 



5. Discodoris condnna (A. &, 11.) = Disc, concinniformis Bergh. 



6. Archidoris violacea Jievg\\ = Arch. africana Eliot. 



7. Thordisa villosa (A. & H.) = 2'A. macuUgera Bergh. 



8. Tr'ijypa Inteola (Kelaart) = Thordisa ? caudata Farran. 



9. Trevehjana ceylonica Kelaart=7'. ruhromaculata Bergh. ' 



10. Bornella digitata Ad. & lieexe = J^ornella hancockana Kelaai-t. 



11. Samla hicolor (Kelaart) = /S'rt?»/rt annuligera Bergh. 



12. Elysia cmridea 'K.e\-xcivt=Elysia Uneolata Bergh. 



13. Elysia pimctata Kelaart =^^ys?"« nigropimctata (Pease). 



