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 fthsless; smooth, glossy, subcylindric; 
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* i* 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. 
249. C. cingUla . — Whorls six, slightly raised, spirally striated ; 
the separating line deep. 
Turbo trifasciatus, Adams., Linn. Trans, v. ii. t. i. f. 12. B — T. cing. Mont. 
Test. Brit. 328. t. xii. f. 7. — T. vittatus, Don. Brit. Shells, t. clxxviii. 
f. 1.-— T. graphicus, Turton.) Conch. Diet. 208. f. 34. Broivn^ Wern. 
Mem. ii. 521. t. xxiv. f. C. — 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. — Boots of fuci, 
common. 
Length about y^oth of an inch, breadth one-half less ; smooth, glossy, subpel- 
iucid, 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-Avhorl ; 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. semisif Haf a. ^WborJs 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 Bev. 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 
