VOLUTA. 509 



interstincta. 25. Shell turreted, minute, with 

 five flattish whirls, longitudinally ribbed; 

 pillar with a small tooth. 



Voluta interstincta. Maton and Racket, in Lin. Trans. 



viii. p. 131. 

 Turbo interstinctus. Adams, in Lin. Trans, iii. p. 66. t. 

 13. f. 23 and 24.? Montagu Test. p. 324. t. 12. f. 10. 

 Found among sand from Bigberry Bay, Devon. Montagu. 

 Length one line, and one third as broad. Shell glossy white, 

 taper, with five rather flat finely ribbed whirls, separated by 

 a small suture ; apex obtuse ; aperture sub-oval ; pillar-lip 

 a little reflected, and one-toothed. 



insculpta. 26. Shell sub-conical, minute, with 

 five or six transversely striated whirls ; pillar 

 with a small tooth. 



Turbo insculptus. Montagu Supp. p. 129. 



Inhabits the sea, on the coast of Devon. Montagu. 



Length one-eighth of an inch, and one third as broad. Shell 

 sub-pellucid, white and taper, with five or six moderately 

 convex whirls, regularly striated transversely ; apex obtusely 

 pointed ; pillar-lip with a faint duplication, forming a sub- 

 umbilicus. 



plicatula. 27. Shell acuminated, minute, smooth, 

 with six flattish whirls ; pillar with a tooth- 

 like fold. 



Voluta plicata. Maton and Racket, in Lin. Trans, viii. 



p. 131. 

 Turbo plicatus. Montagu Test. p. 325. t. 21. f. 2. 



Inhabits the sea, on the coast of Devon, rare. Montagu. 



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

 glossy, sub-pellucid, white, with six rather slender, nearly 

 flat whirls, defined only by a narrow suture ; aperture sub- 

 oval, contracted a little to an angle at the upper part. Mr. 

 Montagu says it resembles V . unidentata, but is thinner, 

 more slender, narrower at the base in proportion to its 

 length, and larger in the aperture. It has more the shape of 

 Helix polita, but is neither so finely pointed, nor is the aper- 

 ture so long, and may be at once distinguished from that 

 shell by its tooth-like fold on the pillar-lip. 



