Phasianella. 



Shell conical ; volutions imbricated, flat-sidcil, broad, plane, 

 angular below, and furnished with rather wide spiral striae, and 

 oblique, distant, longitudinal stri». 



Found in the Mountain Limestone of Yorkshire. 



17. T. SPIRALIS — The Spiral Turritolla, pi. XXXVIII. 

 fig. 17. 



Turritella spiralis. Phillips, Geo. of Yorkshire, II. p. 229, 

 pi. 16, fig. 5. 



MOLLUSC A. 



Genus XXX. 



71 



-PHASIANELLA.— Z,a»na;-cA. 



Shell obloiijr, smooth ; spire regular, somewhat acu- 

 minated ; volutions rather ventricose, but the suture not 

 well defined; aperture oblong, entire, contracted and 

 acutely angulated at its upper part, and rounded at its 

 base ; outer lip not continuous with the pillar lip above ; 

 inner lip white and thickened, especially at the base of 



Obliquely conical; with imbricated, broad volutions, their the columella; operculum testaceovis, thick, spiral, exter- 

 lower edges projecting over the suture ; whole surface covered iially convex, with its spire in the inner side, to which 

 with spiral, wide, equidistant striae, and oblique, longitudinal 

 stria;, producing a fine reticulated appearance. 



Found in the Mountain Limestone of Yorkshire. 



18. T. suTUKALis The Broad-sutured Turritella, pi. 



the foot of the animal is adherent. 



The Cornered 



Phillips, Geo. of Yorkshire, II. p. 



XXXVIII. fig. 2. 



Turritella siituralis. 

 229, pi. IG, fig. 6. 



Shell conical, smooth; with broad volutions, which are pro- 

 jecting at the edges of the suture, and concave below their 

 sutural edges. 



Phillips mentions one specimen with the sutural and lower edges 

 of a milk-white colour. 



Found in the Mountain Limestone at Bolland and Kirby 

 Lonsdale. 



19. T. TRisERiALis. — The Three-notched Turritella, pi. 

 XXXVIIL fig. 5. 



Turritella triserialis. Phillips, Geo. of Yorkshire, II. p. 

 229, ph 16, fig. 25. 



Shell elongated; with numerous ventricose volutions, deeply 

 divided by the sutural line, each furnished with three medial, 

 one sutural, and one inferior spiral granulated striae. 



Found in the Mountain Limestone, Otturburn, Northum- 

 berland. 



20. T. T^NlATA The Worm-like Turritella, pi. 



XXXVIIL fig. 7. 



Turritella tceniata. Phillips, Geo. of Yorkshire, II. p. 229, 

 pi. 16, fig. 7. 



Shell turreted, elongated; with broad convex volutions; pro- 

 vided with a flat mesial band, and wide flexuous spiral striae. 



Found in the Mountain Limestone of Yorkshire. 



21. T. ACICULA. — The Sharp Turritella, 



Turritella acicula. Phillips, Geo. of Yorkshire, II. p. 229. 



" Very elongate ; volutions with three medial spiral, granu- 

 lated lines, the upper one set on an angle." 



Found in the Mountain Limestone, Otterburn, Northum- 

 berland. 



22. T. Urii.— Ure's Turritella, pi. XXXVII,* fig. 4. 

 Turritella Urii. Fleming, Brit. An. p. 305. Ure's History 



of Rutherglen, p. 308, pi. 14, fig. 1. 



" Elongated, striated transversely." 



Found in the Limestone of the Coal formation, at Ruther- 

 glen, Renfrewshire. 



23. T. ELONGATA. — The Elongated Turritella, pi. 

 XXXVII. fig. 5. 



Turritella elongata. Fleming, Brit. An. p. 305. Ure's 

 History of Rutherglen, p. 308, pi. 14, fig. 11. 



" Elongated, striated spirally." 



Found in the Limestone of the Coal formation, Rutherglen, 

 Renfrewshire. 



Phasianella, pi. 

 p. 168, 



1. P. ANGULOSA. ■ 



XXXVIIL fig. 34. 



Phasianella angulosa. Sowerby, Min. Conch. II. 

 pi. 175, fig. 2. Fleming, Brit. An. p. 302. 



Shell conical, smooth; body large; spire short, abruptiv 

 tapering, and consisting of five or six slightly raised and some- ' 

 what angulated, or subcarinated, volutions ; aperture nearly 

 circular ; outer lip plain, and rather sharp on the edge. 



Found in the Limestone at Shalconib, Isle of Wight. 



2. P. orbicularis The Orbicular Phasianella, pi. 



XXXVIIL fig. 29. 



Phasianella orbicularis. Sowerby, Min. Conch. II. p. 167, 

 pi. 175, fig. 1. Fleming, Brit. An. p. 302. 



Shell conical, acute, smooth ; body large ; spire small, con- 

 sisting of five rather ventricose volutions, terminating in an 

 acute apex, and exhibiting a few longitudinal, somewhat obhque 

 lines of growth, and some spiral striaj upon the superior volu- 

 tions ; aperture nearly orbicular. 



Found in the Fresh Water Limestone at Shalcomb, Isle of 

 Wight. 



3. P. MiNUTA The Minute Phasianella, pi. XXXVIII. 



fig. 35, 36. 



Phasianella minuta. Sowerby, Min. Conch. II. p. 168, pi. 

 175, fig. 3. Fleming, Brit. An. p. 302. 



Shell elongated, smooth; body large, ventricose; spire short, 

 consisting of four rather inflated, somewhat squared, and deeply 

 divided volutions, a httle flattened above, terminating in an 

 acute apex ; aperture oblong. 



Found in the Fresh Water Limestone, Isle of Wight. 



4. P. ciNCTA. — The Girdled Phasianella, pi. XXXVIII. 

 fig. 38. 



Phasianella cincla. Phillips, Geo. of Yorkshire, I. p. 123, 

 pi. 9, fig. 29. 



Shell conical, smooth; body somewhat longer than the spire, 

 and provided with a broad, elevated spiral girdle, situate towards 

 the base of the body ; spire consisting of five narrow, slightly 

 inflated volutions, terminating in an obtuse apex. 



Found in the Grey Limestone, or Cave Oolite, at Cloughton 

 and Brandsby, Yorkshire. 



5. P. pusiLLA The Slender Phasianella, pi. XXXVIL* 



fig. 6. 



Phasianella pusilla. Sowerby, Geo. Trans. IV. 2nd series, 



p. 343, pi. IS, fig. 13. 



Shell elliptical, smooth ; body large, being more than double 

 the length of the spire, which consists of four nearly flat, gra- 

 dually tapering volutions, terminating in a somewhat obtuse 



