157 



T united, 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. H. 

 Kentish Coast, tyc. The operculum is black, coria- 

 ceous and spirally striated. 



S, CLATHRATULUS. P.p. 311. TURBO C. Walker, 

 t. 2./. 45. Lin. T. S. p. 171. t. 5./. 1. Mont. p. 

 297. and &up. p. 124. D. p. 854. Imperforate, 

 turreted, narrow, snowy white, thin, transparent, eight 

 obtuse whorls adorned by about fifteen crowded lamellar 

 contiguous ribs, the intermediate spaces smooth i.... 

 0/20. Rare 



S. TURTONI. F. p. 311. TURBO T. Turt. D. p. 

 IQS.f. 97. T. CLATHRATDS. Don. t. 28. lowest jig. 

 ^-Strong, pale brown with two or three dark spiral 

 baxids ; 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. 2i.,.|, 

 England <md Ireland. 



