Cingula. MOLLUSCA. PECTINIBRANCHIA. 30T 
235. C. semicostata .- — Sheli short, conical ; whorls five, spi- 
rally striated, with abbreviated transverse ribs. 
Turbo elegans, Adams^ Linn. Trans, iii. 66. t. xiii. f. 31-32. — T. sem. Mont 
Test. 326. t. xxi. f. 5.— Coast of Devon and Dunbar. 
Length half a line ; white ; whorls rounded, well defined by the separating 
line ; neither the strioe nor ribs conspicuous on the upper whorls ; the ribs do 
not extend to the lower part of the body-whorl, where the spiral striae are 
most conspicuous ; aperture suborbicular ; pillar-lip a little reflected. 
236. C, Bryerea . — Shell conical; whorls seven, with about 
eighteen transverse ribs ; destitute of spiral striae. 
Turbo B. Mont. Test. Brit. 313. t. xv. f. 8.— In shell-sand, rare. 
Length about |th of an inch ; white, glossy ; whorls rounded, well defined 
by the line of separation, which scarcely interrupts the ribs ; aperture oval, 
patulous ; piUar-lip slightly reflected. 
237. C. Whorls six, rounded, regularly striated spi- 
rally, with transverse obsolete ribs at the top of each volution. 
Turbo sex anfractibus reticulatis apertura ovali submarginata, Walk^ 
Test. Min. 13. t. ii. f. 49. — T. striatus, Adams, Linn. Trans, iii. 66. 
Mont. Test. Brit. 312.— Among sea-weeds, common. 
Length upwards of |th of an inch ; cuticle brownish ; whorls with a deep 
separating line ; aperture oval, narrow retrally ; outer lip slightly thickened. 
238. C. disjuncta . — Whorls six, smooth ; with the deep line 
of separation flat or concave. 
Turbo dis. Laskey, Mont. Test. Brit. Supp. 128. Wern. Mem. i. 405. 
t. viii. f. 3.— Belton Sands, Dunbar. 
Length about |th of an inch, slender, white ; whorls much rounded, divid- 
ed by a broad and deep line of separation ; aperture nearly orbicular ; pillar- 
lip reflected, forming a small cavity. 
Outer lip not thickened hy a rib. 
239. C. lahiosa . — Whorls seven ; the three largest faintly 
ribbed transversely ; aperture patulous. 
Turbo lab. Mont. Test. Brit. 400. t. xiii. f. 7——T. membranaceus, Adams, 
Linn. Trans, v. ii. t. i. f. 14-15 — English coast, not uncommon; rare 
in Scotland. 
Length about ths ; breadth less than ^%ths ; subpellucid, horn-coloured ; 
whorls but little raised, the upper ones smooth, the under ones with about 
fifteen faint ribs ; aperture oval, with the outer lip thin ; the pillar-lip much 
reflected, forming a cavity behind. — This shell varies much in its thickness, 
and in the disposition or presence of the ribs. 
240. C. ventricosa . — Whorls six, tumid, smooth and glossy. 
T. quinque anfractibus ventricosis apertura subrotunda, Walk. Test. 
Min. 10. t. ii. f. 36. — T. vent. Mmt. Test. Brit. 317- t. xii. f. 13. — 
English coast, common. 
Length |th of an inch ; breadth |ds less, of a horn colour, with minute lines 
of growth’; aperture suborbicular ; pillar-lip reflected, forming, behind, a small 
cavity ; lid thin, wrinkled, and corneous. 
241. C. auricidaris . — Whorls five, rounded; aperture ear- 
shaped ; inner lip with an angle. 
Turbo aur. Mont. Test. Brit. 308.— Near Southampton, rare. 
u 2 
