118 MOLLUSCA OF THE GREAT OOLITE OF YORKSHIRE. 



PHASIANELLA STRIATA, Sow. Plate XV, fig. 19. 



MELANIA STRIATA, Sow. 1814. Min. Con., tab. 47. 



PHASIANELLA STRIATA, Sow. Min. Con., 1834. Index, p. 5. 



TEREBHA Lonsdale. Geol. Trans., 2d Series, vol. iii, p. 275. 



Morris. 1843. Cat. Brit. Foss., p. 163. 

 MELANIA Roemer. 1836. Nordd. Oolith., p. 158, t. 10, fig. 1. 



Gold/. 1844. Petref., p. 112, t. 198, fig. 12. 

 PHASIANELLA D'Orb. 1850. Prod. Paleont., p. 333. 



P. Testa turritd, ventricosd ; anfractibus (7) subconvexis et striatis ; striis (15) trans- 

 versis ; basiprofundestriatd; aperturd depressd, suborbiculari ,- columella excavatd. 



Shell turreted, ventricose ; whorls (7) somewhat convex and striated ; striae but faintly 

 impressed, and about 1 5 in number upon each whorl ; the base Deeply striated ; aperture 

 depressed, nearly circular ; columella excavated. 



The figure is subpyramidal, the length of the whorls being rather more than half their 

 transverse diameter ; the sutures of the whorls are deeply marked, the base of the last 

 whorl is deeply grooved ; the base of the aperture is very wide, and the transverse diameter 

 of the aperture is nearly equal to the longitudinal. The length of the entire shell is about 

 3 inches, the transverse diameter through the last whorl is 21 lines. 



Locality. Great Oolite near Scarborough. In the middle and west of England this 

 species occurs in the upper beds of the Inferior Oolite and Coral Rag. 



ACTION, Montfort. 1810. 

 TORNATELLA, Lam. 



Shell ovate, volutions few, transversely striated; spire obtuse; aperture narrow, 

 lengthened, entire ; columella spirally thickened at its junction with the inner lip ; outer lip 

 thin, smooth. 



ACTION SEDGVICI, Phil. sp. Plate XV, figs. 9, 9a. 



AURICULA SEDGVICI, Phil. 1835. Geol. of York., vol. i, t. 11, fig. 33. 



Williamson. Geol. Trans., 2d Series, vol. v, p. 241. 



Bronn. 1848. Index Paleeont., p. 136. 

 ACTEON D'Orb. 1850. Prod. Paleont., p. 263. 



A. Testa parvd, ellipticd, transversim striato punctatd; striis crebris, punctis impressis ,- 

 spird subconicd, gradatd; anfractibus subplanis, ultimo injlatu ; aperturd elongato- ellipticd, 

 angustatd. 



