Cingcjla. MOLLUSCA. PECTINIBRANCHIA. 307 



235. C. semicostata. — Shell 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 denned by the separating 

 line ; neither the strice 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 Ath of an inch ; white, glossy ; whorls rounded, well defined 

 by the line of separation, which scarcely interrupts the ribs ; aperture oval, 

 patulous ; pillar-lip slightly reflected. 



237. C. stria ta.—- 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 Ath of an inch, slender, white ; whorls much rounded, divid- 

 ed by a broad and deep line of sepai'ation ; aperture nearly orbicular ; pillar- 

 lip reflected, forming a small cavity. 





Outer lip not thickened by a rib. 



-239- C. labiosa. — 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 T 4 oths ; breadth less than T - 5 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. Mont. 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 tbin, 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 



