TURBO. 857 



portunlty of comparing these two shells, will also observe 

 that the ribs in e/egantissimiis do not run straight, but oblique 

 to the right, are not so much arched, and are larger than the 

 interstices." The length is about three-eighths of an inch. 



PARVUS. 97. Shell turreted, minute, with five or six 

 whirls, and distant elevated ribs. 



Turbo parvus. Da Costa Brit. Conch, p. 104. Montagu 

 Test. p. 310. Maton and Racket, in Lin. Trans, viii. 

 p. 171. Dorset Cat.p. 50. t. 19. f. 4. 

 Turbo zereus. Adams in Lin. Trans, iii. p. 66. t. 13. f. 29 



and 30. 

 Turbo lacteus. Donovan, iii. t. 90. 

 Variety. Ribbed only on tlie lower whirls. 



Turbo subluteus. Adams, in Lin. Trans, iii. p. QQ. 

 Inhabits the shores of Great Britain and Guernsey. Da Costa. 

 Shell about one-eighth of an inch long, with the colour very 

 various, and is sometimes white or chestnut, or pale rufous, 

 with the ribs white ; the aperture is sub-orbicular and thick- 

 ened. Da Costa, as well as Mr. Donovan, considered this 

 to be the Linnaean Turbo lacteus; but there are only from 

 nine to eleven rather distant ribs, whereas that species is de- 

 scribed to have the ribs crowded. 



.STRiATULus. 98. Shell turreted, minute, sub-can- 

 cellated, with the whirls contiguous, and in- 

 terrupted by varicose belts. 



Turbo striatulus. Linnaus St/st. ISlat. p. 1238. Schroeter 



Einl. ii. p. 40. Gmelin, p. 3604. Montagu Test. 1. 10. 



f. 5. Maton and Racket, in Lin. Trans, viii. p. 172. 



Dorset Cat. p. 50. t. 14. f. 10. 



Turbo carinatus. Da Costa Brit. Conch, p. 102. t. 8. f. 10. 



Inhabits the Mediterranean. Linnaus. Shores of England. 



Da Costa. 

 Linnceus has described this species to be " of the size of a 

 barley-corn, white, and the whirls surrounded with small 

 membranaceous striae and convex callous wrinkles ; aperture 

 somewhat ob-ovate, and rather angular beneath," The 

 shell, supposed by all British authors to be the same, has 

 four or five whirls, each terminating in a flat top, which 

 marks their divisions, and besides the elevated spiral ridges, 

 is striated longitudinally, which gives an elegant cancellated 

 appearance ; it is about two-tenths of an inch long, and 

 nearly equally broad^ and is rather a strong shell for its size. 



