183 



t. 12, f. l.D.p. 841. Lin. T. S.jp. 165.T. TIT- 

 TATUS. Don. t. 178. /. 1, T. GRAPHICUS. Turt. D. 

 p. 200. / 34. Brown. Wern. Mem. 2. p. 521. t. 24. 

 /. 6. Conic, subpellucid, obscurely striated, except at 

 the base where the striae are strong ; whorls six, horn- 

 colored with chesnut brown bands (usually three on the 

 body and two on the other whorls); apex uniform brown 

 and moderately pointed ; aperture suboval, contracted 

 above ; outer lip thin and not expanded, inner slightly 

 thickened; iniperforate. & ..0,04. Plymouth and 

 Salcomb. 



C. ALBA. P.p. 309. TURBO A. Adam. Lin. 3. p. 

 66. t. 13. /. 17,8. Whorls six, not much rounded, 

 smooth, glossy, subpellucid, pale brown or with brown 

 spiral bands ; about sixteen longitudinal rounded and 

 slightly waved ribs on the body whorl ; aperture sub- 

 orbicular ; pillar lip a little reflected, outer lip thin. 

 0,10. Common on Roots ofFuci. 



C. SEMISTRIATA. F. p. 309. TURBO S. Mont. 

 Sup. p. 136. D. p. 842 Conical, the apex obtuse, 

 white ; whorls five or six, rounded, well defined, smooth 

 in the middle, striated spirally above and below, the striae 

 extending to the body whorl as far as the junction of 

 the lip; aperture subovatc, angulated above, i.,.0,20. 

 Southern coast of Devon, 



