GASTEROPODA. 13 



More fusiform than other known English examples of the genus. 

 Geological Position and Locality. The Great Oolite of Minchinhampton, collected by 

 Mr. Witchell. 



NATICA HULLIANA, Lye, Tab. XLI, fig. 2. 



Testa ovata, subglobosa lavi ; anfractibus 6 valde converts, suturis prof uncle impressix, 

 spira elevato, acuto ; apertura oblique ovali, antice rotundata postice angulata ; columella 

 callosa, umbilico nullo. 



Shell ovate, subglobose, smooth ; volutions (6) very convex, the sutures deeply impressed; 

 the spire is elevated, acute, the last volution being very large ; the aperture is ovate, 

 oblique, the anterior side rounded, the posterior side acute, the length exceeding a moiety of 

 that of the entire shell ; the columella is rounded, thickened, and there is no umbilicus. 



Allied to N. intermedia, Tab. VI, fig. 1, but with a more elevated acute spire, more 

 deeply depressed sutures, and a more globose ultimate volution ; specimens vary somewhat 

 in the figure of the last volution, but the acute, elevated, deeply sutured spire will always 

 serve to distinguish it. 



Geological Positions and Localities. I have obtained it in the Great Oolite of 

 Mincbinhampton, and in the Inferior Oolite of the same locality ; Mr. Whiteaves has also 

 kindly forwarded to me a specimen from the Great Oolite of Kirklington, Oxon; the latter, 

 which is a young form, has the last volution slightly more globose than in the other 

 examples. 



EULIMA? L^EVIGATA, Lye. Tab. XXXI, fig. 3. 



Testa parva Icevigata, subulata, acula, atifraclibus (circa 10) planatis, aiiguslis, ilttttng 

 inipressis ; apertura suborbicidari odliquo, umbilico nullo. 



Shell small, smooth, elongated, apex acute ; volutions (about ten) narrow, their sides 

 flattened, the sutures distinct but not constricted ; the aperture is obliquely orbicular ; there 

 is no umbilicus. 



The height of each volution slightly exceeds the half of the opposite diameter ; length, 

 nine lines ; diameter of the last volution, three lines. 



Compared with Eidima ? communis, the spire is more acute, the volutions more flattened, 

 and the sutures are less deeply impressed. 



Geological Position and Locality. It occurs rarely in the Cornbrash of Scarborough ; 

 the example figured is from the collection of J. Leckenby, Esq. 



