460 GASTEROPODA OF THE INFERIOR OOLITE. 



justify their separation ; whilst in the shell itself the rugose radial ornamentation 

 of the latter species is entirely wanting. 



Eare in the Great Oolite of Ancliff and Minchinhampton. My own specimens 

 are from the Lincolnshire Limestone (Inferior Oolite) at Stoke Lodge, whence 

 several interesting fossils have been procured; rare. 



Family— 7 ATELLIBM . 



Shell conical, with apex turned forwards ; muscular impression horseshoe-shaped, 

 open in front. — S. P. "Woodward. 



The PateHids of the Jurassic rocks have been described under several genera, 

 viz. Patella, Scurria, Acmaa, Scurriopsis, Guerangeria, Deslongchampsia, &c. In 

 the Inferior Oolite of this country we do not possess many more than half a dozen 

 species, and these on the whole are scarce and locally distributed. In the absence 

 of special evidence these will be described primarily under Patella. 



Genus — Patella, Lhmxus, 1758. 



SJiell ovatehj conical, with an oblong or oval base; apex subcentral, or inclining 

 toivards the anterior side ; internal surface smooth ; margin of the aperture entire. 



Section A without radial ornament (? = Scurria, Gray). 



404. Patella inornata, Lycett, 1850. Plate XLII, figs. 4 a, 4ib. 



1850. Patella inornata, Li/cett. Ann. Mag. Nat. Hist., 2nd ser., vol. vi, 



p. 415. 

 1853. — — — Proc. Cotteswold Nat. Club, vol. i, p. 7U. 



?Syn. — — Morris and LijCett. Gt. Ool. Moll., pt. 1, p. 93, 



pi. xii, figs, 11, 11 a. 



Description : 



Length . . . . .30 mm. 



Width . . . .18 mm. 



Height . . . . .9 mm. 



" Ovate, smooth ; apex pointed, moderately elevated, subcentral, but posterior 

 and inclined slightly forwards." 



