Cingula. MOLLUSCA. PECTINIBRANCHIA. 309 



Turbo vit. Mont. Test. Brit. 321. t. xii. f. 3 — In Cornwall and Zetland, 



rare. 



Length |th of an inch ; breadth fths less ; smooth, glossy, subeylindric ; 



separating line deep and oblique ; aperture large ; outer lip rounded, slightly 



compressed in the middle ; pillar-lip a little reflected, forming behind a small 



cavity This seems a rare shell. Two examples occurred to me among sand 



from Bressay, Zetland. 



248. C. unifasciata. — Whorls five, smooth, white, with one 

 or two spiral bands of purplish brown. 



Turbo uni. Mont. Test. Brit. 327- *• xx. f. 6 — On the English coast, rare- 

 Length about |th of an inch; breadth about one-half less ; conical, thick ; 

 whorls little raised, divided by a small line ; aperture wide ; outer lip slightly 

 reflected. 



24-9. C. cingitta. — Whorls six, slightly raised, spirally striated ; 

 the separating line deep. 



Turbo trifasciatus, Adams, Linn. Trans, v. ii. t. i. f. 12. B — T. ring. Mont. 

 Test. Brit. 328. t. xii. f. 7.— T. vittatus, Don. Brit. Shells, t. clxxviii. 



f. 1 T. graphicus, Turton, Conch. Diet. 200. f. 34. Brown, Wern. 



Mem. ii. 521. t. xxiv. f. 6. — Among the roots of fuci. 

 Length |th of an inch, breadth §ds less ; subpellucid ; with alternate spiral 

 bands of horn-colour and chesnut-brown, becoming obsolete towards the apex ; 

 the separating line appears deep, in consequence of the upper margin of each 

 volution suddenly bending inwards ; aperture oval ; outer lip nearly straight 

 retrally. 



250. C. alba. — Whorls six, smooth, with about sixteen trans- 

 verse ribs on the body-whorls. 



Turbo albus, Adams, Linn. Trans, iii. 66. t. xiii.f. 17, 18 — Roots of fuci, 

 common. 



Length about T l 5 th of an inch, breadth one-half less ; smooth, glossy, subpel- 

 lucid, pale brown, when recent, or with spiral brown bands ; whorls not much 

 rounded, smooth, glossy ; the ribs, which are rounded and slightly waved, 

 sometimes do not reach even to the body -whorl ; the shell then appearing not 

 unlike C. interrupta ; aperture suborbicular ; pillar-lip a little reflected. — This 

 species has probably been confounded with C. parva, to which it bears a con- 

 siderable resemblance. It is, however, more rounded in the aperture, and pro- 

 duced in the spire, and the outer lip is thin. 



251. C. semistriata.— Whorls five or six, rounded, smooth in 

 the middle, and spirally striated on both sides. 



Turbo semi. Mont. Test. Brit. Sup. 136 — South coast of Devon. 

 Length |th of an inch ; breadth one-half less, conical ; apex obtuse ; white ; 

 whorls well defined by the separating line ; the striae extend to the body- 

 whorl, as far as the junction of the lip ; aperture subovate, angulated at the 

 retral end. 



252. C. dispar. — Whorls four, the first large ; striated spiral- 

 ly, wrinkled obliquely, and subcarinated at the base. 



Turbo dispar, Mont. Linn. Trans, xi. 195. t. xiii. f. 4 — Found at Poole, 



by the Rev. Mr Bingley. 



Length |th of an inch ; breadth very little less ; grey ; upper whorls small, 



usually worn ; aperture suborbicular, within of a dark purple, with one pale 



band near the lower extremity.— The opinion expressed by Dr Turton, that 



