508 TKOCHlDiE. 



T. striatus, Linnseus. 



Small, conical ; whorls flat, with eight or nine spiral eostella?, 

 which are so little raised, that the volutions, especially the upper 

 ones, might equally be termed sulcated, devoid of any prominent 

 basal belt ; interstices, and oftentimes the costelke, longitudinally 

 striated ; base broad, angulated at the margin, flat, or slightly 

 concave, imperforated. 



Plate LXVI. fig. 5, 6. 



Gualtier, Index Test. pi. CI, f. N. — Che.un. Conch. Cab. vol. v. pi. 162, 



f. 15'27, 1528. 

 Trochus striata*, Linn. Syst. Nat. ed. 12, p. 1230. — Pultexey, Hutchins, Hist. 

 Dorset, p. 44. — Mont. Test. Brit. p. 278. — Fleming, Brit. 

 Animals, p. 323. — Brit. Marine Concli. p. 164. — Brown, 

 Illust. Conch. G. B. p. 19, pi. 11, f. 25, 2G.— Dillw. 

 Recent Shells, vol. ii. p. 707.— Wood, Index Test. pi. 29, 

 f. .90.— Blainvii.le, Faune Franc,. Moll. p. 266, pi. 10, 

 f. 9. — Philippi, Moll. Sicil. vol. i. p. 176 ; vol. ii. p. 150. 

 Trochus parvus, Da Costa, Brit. Conchol. p. 41. 



„ conicus, Donov. Brit. Shells, vol. v. pi. 155, f. 1. 



„ erythroleucus, Maton and Rack, (not Lamarck) Trans. Linn. Soc. vol. 

 viii. p. 156. — Rack. Dorset Catalog, p. 48, pi. 18, f. 2. 

 — Turt. Conch. Diction, p. 191. 

 „ depictus, Desiiayes, Exped. Moree, Moll. p. 143, pi. 18, f. 23, 24, 



25. 

 „ Sartorii, Aradas and Maggiore, Sunto di quatro mem., &c, fide 

 Philippi, Moll. Sicil. vol. ii. p. 225. 



We are not surprised that some of our British writers 

 have not recognised the Linnrean striatus in this long- 

 known shell, since the type of its founder exhibits a linear 

 style of painting, which, although common enough in the 

 Mediterranean, we have never observed in any of our 

 native examples. The contour of this small, but strong, 

 species is simply conic, and its lateral outline (an important 

 character in this genus) is straightish or even a little 

 retuse. The opaque surface is not much polished, but is 

 generally a little glossy ; it displays a remarkable variety 

 of patterns, but the two principal are the streaked and the 



