//. Spirally striated, though the striie are fine and shallow ; 

 form rather conically ovate. </</<i///suiii. p. "JO7. 



b 1 . No >piral striation ; and of more fusiform contour. 



c. Spire purple, last whorl tawny or olivaceouB-brownisb; 

 lip black, .-hading into violet within ; colutnella ver- 

 tical, folded ; -ilt. f>'.)-t>7 mill, approximatus, p. L'OS. 

 r 1 . Glossy, light fawn-colored usually with Mime d;y k 

 markings, spire thick below, attenuaterl above, lip 

 brown, purple within. /><>//-/'.v///////.\-. p. '.'HI',. 



a 1 . Aperture tinted within; surface rather roii<rh, heavily blotched or 

 mottled, or with the last whorl dark throughout; perislome 

 dark brown, becoming reddish-purple within. 



atramentariuf, \>. 'Jn'.i. 



O. POWISIANI s (Petit). I'l. ,">7, liirs. L's_34. 



Shell oblong-conic, solid and strong, li(/lit fun-,, r</A//vr/ with nu- 

 merous inconspicuous slightly ilarker streaks, and usually some pur- 

 plish blotches and streaks; begirt a little be/on' tin' periphery !>>/ <i 

 lrmi',,-hl,n-k li/ni/l somewhat uneven in width, and narrowly 

 M'd in places; this band ascending the spire. slio\\ini_ r a liltle 

 at the suture ; some of the earlier whorls with a continuous or inter- 

 rupted median broun line, lir>t \\liorl brown-topped ; on the last 

 whorl or two a dark line (often interrupted) borders (lie whitish 

 suture below. Surface polished, "lossy, with faint jirowth-lines, 

 stronger at the sutures. Spire convexlv conic below, concavelv conic 

 above, apex obtuse, flattened. \\horls 7, the earlier '.'< regularly 

 thimlile-pitted, lho>e following alino.-t flat, penultimate and la>l whorls 

 sli^'litly convex, the latier obliquely proilneed ami ppreading out- 

 wardlv and downward, near the aperture, with a narrow blackish 

 .-treak bidiind the lip; the base flatly tapering to a rounded j-id^c 

 behind the columella. 



Aperture ObliqUP, /7/o////</c. somewhat effuse below, pine irliih' irithill, 



iciili ii In-null jii/r/i/i' internal lip-border ; perislome obi use and thick, 

 black-brown; columella snbvertical, white, and a trifle tortuoiisabove, 

 juirple below, parieto-columellar callus brown-black. 



All. 7 1, diam. ."."i. lon-i-i axis ,,f aperinre .'!S mill. 

 Alt. i'.s, diam. ."."],. lon^i-st axis of aperture .'!.")', mill. 



( 'nlnnillill : Mllllllllla, Illlll till' /irj/V.V/ ml till' C<l*t silll' uf till' ( '< I llftl . ml 



tlif rmiil In Siiliiniiii.i, on damp bank- undi'r trees and on >hrnbs 

 i'lUandj; //</r.v/.v mi //>/ ('n/irn A'/r, / ( Ijliuiaiin aiidolhe: 



