112 RISSOIDiE, 



40. Alvania n. sp. 



20 Singapore ; coll. Dr. F. Stoliczka. 

 Long. 1|, diam. 1 mil. Unusually broad, in proportion. 



var robust a. 



30 Bombay ; ex c. Dr. F. Stoliczka. 



41. Alvania n. sp. 



The wliorls are markedly less convex than in the Nico- 

 barese^. stigmata^ Frauenfeld. 



8 Bombay [If, 1] ; coll. Rev. S. B. Fairbauk, and W. T. Blanford, 



Esq. 

 4 Andaraans, Ceylon, and Mauritius [2, 1] ; coll. G. Nevill and 



J. B. Baxter, Esqrs. 

 4 Arakanj coll. Dr. F. Stoliczka. 



42. Alvania n. sp. 



4 Arakan and Penang; coll. Dr. F. Stoliczka. 

 1 Singapore [2, 1 i] ; coll. Dr. F. Stoliczka. 



Longitudinal ribs quite straight, rather distant and thick. 



43. Alvania stigmata. 



Alvania stigmata, von Frauenfeld, Moll. Novara Retse, 1866 [Kamorta, 

 Nicohars^—long. 2, diam. mil., on expl. of plate as A. stigmatica ! 



var. tumida [? dist. sp.] 



6 Andamans; coll. J. Wood-Mason and G. Nevill, Esqrs. 

 2 Ceylon; coll. G. Nevill and J. B. Baxter, Esqrs. 

 20 Arakanj coll. Dr. F. Stoliczka. 



44. Alvania weinkaufiai. 



Alvania weinkauffii, Schwartz, ms., Weinkauff, Conch. Medit., 1S68, Algeria, 

 20 Algiers ; coll. P. Joly, Esq. 

 Fide Monterosato, distinct from Alv. dldyophora, Philippi ? 



