842 TURBO. 



16 and 17. Montagu Test. p. 329- t. 20. f. 8. Dono- 

 van, V. t. 178. f. 2. Maton and Racket, in Lin. Trans. 

 viii. p. l66. 

 Inhabits the coasts of England and Wales, not uncommon. 

 Shell one-eighth of an inch long, and one-third as broad, pel- 

 lucid, glossy, and white, marked with interrupted longitu- 

 dinal yellowish brown streaks, which on the body-whirl fre- 

 quently form two rows of oblong spots ; aperture sub-orbi- 

 cular. 



SEMiSTRiATUS. 62. Shell conical, minute, with 

 five or six slightly rounded whirls, which are 

 transversely striated at both ends, and plain 

 in the middle. 



Turbo semistriatus. Montagu Supp. p. 136. 



Inhabits the South coasts of Devonshire, not common. Mon- 

 tagu. 



Shell about one-eighth of an inch long, and half as broad, 

 white, and is sometimes marked like T. interruptus with 

 faint interrupted brown stripes; it is however readily distin- 

 guishable by its transverse striae, and the aperture is more 

 ovate. 



ALBULUS. 63. Shell imperforate, minute, glabrous, 

 with the whirls rounded and striated. 



Turbo albulus. Fabricius Fauna GroenJandica, p. 394. 

 Gmelin, p. 3609. 



Inhabits the deeps of the Greenland Seas, among branches of 

 Sertulariae. Fabricius. 



Shell but little more than a line long, pellucid, whitish, brittle, 

 with five ventricose longitudinally grooved whirls, which gra- 

 dually taper to a point. 



* * * Umhilicated and solid. 



PICA. 64. Shell conical, smooth, with the whirls 

 rounded, and the umbilicus toothed on its 

 margin. 



Turbo Pica. Linnaus Si/st. Nat. p. 1235. Born Mus. 

 p. 349. Chemnitz, v. p. 168. t. 176. f. 1750 and J 751, 

 and Operculum^ iv. t. 151. f. 1420 and 1421. Schroeter 



