——-Turrited, imperforated, whorls ten, smooth, crossed 
by about ten distinct contiguous somewhat oblique and 
rather strong ribs; whorls rounded and deeply divided 
by the separating line; colour white or whitish with cho- 
colate amorphous marking which however frequently 
are arranged as interrupted bands on the ribs. 134, 
Kentish Coast, §c.—The operculum is black, coria- 
ceous and spirally striated. 
S. CratHratutus. Fp. 311.—Turso C. Walker: 
t. 2. f. 45.—Iin. T. 8. p. 171. t. 5. f. 1.—Mont. p. 
297. and Sup. p. 124.—D. p. 854.—Imperforate, 
turreted, narrow, snowy white, thin, transparent, eight 
obtuse whorls adorned by about fifteen crowded lamellar 
1 
contiguous ribs, the intermediate spaces smooth #4.... 
0,20. Rare 
S. Turtont. #. p. 311.—Turso T. Turt. D. p. 
208. f. 97.—T. Craturatus. Don. t. 28. lowest fig. 
»—Strong, pale brown with two or three dark spiral 
bands; whorls about twelve, rounded, pointed, crossed 
by about as many ribs, which are but little raised 
rounded and bent at the suture; interstices spirally 
striated ; lips white, pillar lip a little reflected. 23...4. 
England gad Ireland. 
