764 Mil. W. T. BLANrOKl) 0]S' SHELLS OF THE [Juiie 6, 



Plate XLVII. 



Fig. 1. Asfraa deutkulnta, Ellis & Solander, X 1 ; p. 748. 



2. ,, okeni, Milne-Edwards & Haime, X 1 ; p. 749. 



3. „ rotmnana^ n. sp., X 1 ; p. 750. 



4. VrionastrcBa ahdita, Ellis & Solander, X 1 ; p. 758. 



5. „ fusco-viridU, Q"oy & Gaimard, X 1 ; p. 759. 



6. ,, echinata, Dana, X 1 ; p. 760. 



Plate XLVIII. 



Fig. 1. SymphylUa. sinuosa, Quoy & Gaimard, X | ; p. 738. 



2. liydnopkora lobaia, Jmrnarck, X IJ; p- 745. 



3. „ ej;esa, Pallas, X 1 ; p. 745. 



Plate XLIX. 



Fig. 1. Gyphnstr^a savignyi, Milne-Edwards & Haiiiie, X 1 ; p. 7f'il. 



2. Orbicella wakayana, n. sp., X 11; p- 753. 



3. ,, rotumana., n. sp., X 1 ; p. 755. 



4. ,, heliopoi-a, Lamarck, X 1 ; p. 756. 



5. „ funafuteMsis, n. sp., X 1 ; p. 756. 



4. On some Species of Shells of the Greuera Streptaxis and 

 Ennea from India, Ceylon, and Burma. By W. T. 

 Blanford, F.K.S., V.P.Z.S. 



[Received May 15, 1899.] 

 (Plate L.) 



In the preparation of a general account of Indian terrestrial 

 MoUusca, I have bad occasion to go again over the somewhat 

 numerous forms of Streptaxis and Ennea found in Southern India 

 by Col. E. H. Beddoine, from whose collections I described 

 several species of those genera in 1880 '. Col. Beddome has very 

 kindly placed in my hands for examination the various additional 

 forms subsequently obtained by him, and although only one more 

 Ennea appears to require description, the case is different with 

 Streptaxis. This genus abounds on the hills of Southern India, and 

 shows so much variation that it is very difficult to say how many 

 forms present characters sufficiently well marked to justify specific 

 rank. If every variety were described as distinct, a large number 

 of " species " or " subspecies" might be proposed. In the present 

 ease only those forms, three in number, which are well marked and 

 easily recognized have received specific names. 



A species of Streptaxis obtained by Col. Beddome in Burma 

 and another that has long been in my own collection from Ceylon 

 are also described ; also an Ennm collected in the Naga Hills by 

 Col. Godwin-Austen, and another species from the neighbourhood 

 of Moulmein obtained by Mr. Theobald and now in the British 

 Museum collection at South Kensington. Eemarks on some other 

 species are added. 



Typical specimens of all the species here described are in the 

 British Museum. 



1 J. A. S. B. xlix. pt. 2, pp. 201-211. 



