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, 
horny spiral. Aberdeen. Between Rufa and Mon- 
lifera. 
ToRNATELLA PELLucIDA. Macg. 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 striz 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. 
ScaALARIA 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 
