254 



striolate, the body ventricose ; aperture oblique, sub- 

 ovate, reddish white, inner lip nearly straight, thickened 

 slightly reflected at the strongly sulcated umbilicus but 

 not forming a prominence, operculum semicircular, 

 homy spiral. Aberdeen. Between Rufa and Mom- 

 lifera. 



TORNATELLA PELLUCiDA. Macff. Aber. p. 158. 

 Ovate-conical, subfusiform, very thin, transparent, 

 glossy ; the spire having a straight outline and tapering 

 to a small point ; whorls little convex, transversely 

 striated ; the body nearly twice as broad as the length 

 of the spire, more deeply striated anteriorly and towards 

 the suture where there are two punctulate impressed 

 lines, the anterior striae minutely crenulated : suture 

 distinct, edge of the whorls simply incurved : aperture 

 narrow oblong, much narrowed behind by the convexity 

 of the last turn; outer lip extremely thin, pillar with an 

 obscure obtuse plait, colour hyaline white, with two 

 very faint reddish bands on the first whorl. 0,20 -0,12 

 Aberdeen. 



SCALARIA TREVELIANA. Turreted imperforate, 

 thin, pellucid, glossy, of a uniform pale yellow ochre 

 colour, with very indistinct, lighter bands ; whorls eight 

 or nine, moderately rounded, about eighteen longitudinal 



