1052 MALAYSIAN LAND AND FRESHWATER MOLLUSCA, 



S. DENSESPIRATA, Mouss. = BuUmus densBspiratus, Mouss. Jour. 

 Conch. VI. 1857, p. 159 ; Pfr. Mon. Hel. IV. p. 497. 

 Buitenzorg, Java. 



S. ACUTissiMA, Mouss. = BuUmus acutissimus, Mouss. Jour. 

 Conch. VI. 1857, p. 159 ; Pfr. Mon. Hel. IV. p. 453. 

 Buitenzorg, Java, 



S. LAXISPIRA, von Mai't. Ostas. Zool. II. p. 373, pi. 22, fig. 14 

 = BuUmus laxispirus, Pfr. Mon. Hel. VI. p. 92. 

 Sumatra. 



S. HOCHSTETTERi, Zeleboi', ^ BuUmus hochstetteri, Zeleb. Reise 

 derPreg. "Novara;" Pfr. Mon. Hel. VI. p. 107. 

 Java. 



S. ACHATiNACEA, Pfr.= BuUmus achatinttceuSy Pfr. Symb. III. 

 p. 82 ; Mon. Hel. II. p. 156. 

 Java ; Borneo. 



15. Rhodina, De Morgan, Le Naturaliste, 1885, p. 68. 



Shell cylindraceous, striate ; whorls numerous, last much larger ; 

 aperture triangular ; columella i^eflected, very prominent ; peri- 

 stome continuous. 



M. de. INIorgan has founded this new genus for a curious shell 

 like Stenogyra. He thinks it is related to Khodea by the absence 

 of keel and the cornet-like aperture. 



Rhodina perakensis, De Morgan, I.e. 



Shell cylindrical, fragile, horny, yellow, with 10 i^egularly in- 

 creasing whorls very regularly and distinctly striate, the suture 

 linear and well marked ; the aperture triangular, oblique ; 

 peristome thin, not reflected. 



Long. 25, diam. of last whorl 4^, long, of aperture 5, lat. 3 mill. 



Limestone rocks of Gunong Tcheura, near IpoLi, Kinta Valley, 

 under dead leaves. 



