58 



shell is depressed, almos.4 like that of Valvata; the whorls 

 appearing both above and below. The form of the animal 

 fixes them in this family. 

 SK. DEPRESSA. Helix D. Mont. Test. Brit.* voL 2, 

 p. 439, pi. 13, fig. 5. S. D. Flem. Brit An. p. 313. 

 About low water mark, on sea weed, and perhaps com- 

 mon ;. but from its small size overlooked. 



CINGULA. 



GENERIC CHARACTER: The shell oblong, turreted, 

 pointed ; spire long, with numerous whorls ; aperture 

 round or oval, pointed posteriorly, dilated anteriorly; 

 outer lip slightly thickened, ernarginated ; operculum 

 horny. 



This genus is denominated Cingula by Dr. Fleming, and 

 Rissoa by Freminville as quoted by Sowerby (Conchologicai 

 Manual), from whom the generic character is derived ; and 

 who observes, they are considered by some authors as resem- 

 bling Melanise (of Lamarck), but placed by Sowerby near 

 the Scalariae. 



* C. STRIATULA. Turbo S. Turt. Lin. Mont. Test. 

 Brit. vol. 2, p. 306, pi. 10, fig. 5. C. S. Flem. Brit. An., 

 p. 305. In shell sand ; when on places on the coast 

 where the eddy is favourable, the smaller shells comprized 

 in this and the neighbouring genera are preserved, when 

 the larger species are dashed to pieces. Montagu found 

 it at Falmouth. 



* C. COSTATA. Turbo C. Turt. Lin. Mont. Test. Brit., 

 vol 2, p. 311, pi. 10, fig. 6. C. C. Flem. Brit. An., 

 p. 305. In shell §and, not uncommon. 



* C. PARVA. Turbo Aereus. Turt. Lin. T. Parvus. 

 Mont. Test. Brit., vol. 2, p. 310. C. P. Flem. Brit. 

 An., p. 306. Montagu found it abundant at Falmouth and 

 the Lands-end. It seems to be common on all our south 

 coast. 



* C. STRIATA. Turbo S. Turt. Lin. Mont. Test. Brit., 

 vol. 2, p. 3.12. C. S. Flem. Brit. An., p. 307. Com- 

 mon in pools of the rocks, among the roots of the smaller 

 sea weeds, and corallines. 



C. BRYEREA. Turbo B. Turt. Lin. Mont. Test. Brit., 

 vol. 2, p. 313, pi. 15, fig. 8. C. B. Flem. Brit. An., 

 p. 307. It is introduced because Montagu seems to inti- 

 mate its occurrence in Cornwall. 



* C. CIMEX, Turbo C. Turt. Lin. Mont. Test. Brit., 

 vol. 2, p. 315. C. C. Flem. Brit. An., p. 305. Rare. 

 I have obtained two specimens from near the Land's-end. 

 Montagu found it at Falmouth. 



* C. ULV^E. Turbo U. Turt. Lin. Pen. Brit. Zo., 

 vol. 4, pi. 86, fig. 120. Mont. Test. Brit., vol. 2, p. 318. 

 C. U. Flem. Brit. An., p. 308- Common. 



