126 ELASMIAS. 



easy to tell by the smaller aperture, the simple columella, and 

 the last whorl not inflated. From cernica also by the surface 

 of the shell not decussate (Dohrn). 



According to Semper, this species lives among and on the 

 leaves of water plants, and not infrequently crawls rather 

 high on the trunks of mangroves. Possibly this observation 

 was based on some small and superficially similar Assiminea, 

 as Tornatellinidcc usually are no more aquatic in station than 

 Piipillidce. 



The specimens seen from. Manila (pi. 31, fig. 6, length 2.7 

 mm.) do not agree well with Dohrii's description, and their 

 identity with his type must be regarded as doubtful. There 

 are slightly over four convex whorls, the first minutely striate 

 spirally, the rest only faintly marked with growth-lines. 

 Parietal lamella rather small and about one-third of a whorl 

 long. Columella convex, narrow, not much callused, and in- 

 distinctly bilobed. Cf. T. kochiana. 



The Maldive and Natuna records are from E. A. Smith, 

 who states that he cannot distinguish the Maldive specimens 

 from the Philippine form, and that the shells described as T. 

 natunensis are the same. The original description of the latter 

 is translated below, and the figure is copied. 



" Tornatellina natunensis. PL 38, fig. 16. Shell small, 

 ovate, subconoid above, thin, subpellucid, pale brownish, im- 

 perforate; striated with delicate lines of growth. Whorls 4, 

 convex, the apex large, rounded. Aperture perpendicular, 

 inversely auriform, a little less than half of the total length. 

 Peristome thin, the columellar margin slightly twisted, hardly 

 thickened or reflexed. Parietal lamella very thin, entering. 

 Length 2.5 mm., diam. 1.5, aperture 1.3 long, .75 wide" (E. 

 A. Smith). Natuna Islands: Bunguran (A. Everett). 



Tornatellina natunensis E. A. SMITH, Annals and Magazine 

 of Nat. Hist. (6), xiii, June, 1894, p. 458, pi. 16, f. 7. 



8. E. CITREUM (Smith). PL 30, figs. 6, 7. 



Shell minute, imperforate, ovate, thin, brownish-corneous, 

 little shining, striated with delicate oblique growth-lines. 

 Spire short, very obtuse. Whorls 3^, very convex, the last 



