10 SUPPLEMENT TO GREAT OOLITE MOLLUSCA. 



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

 Mr. Witchell. 



Cerithium ? WiTCHELLi, Ljjc. Tab. XLIV, fig. 7. 



Testa minuta suhcylindrica, elongata, anfractibus (5 — 6) subconvexis altis, suturis valde 

 impressis, costis {circa 15) depressis siibrectis, superne distinctis, inferne evanescentibus 

 apertura ovata, labro externo simplici. 



Shell minute, subcylindrical, lengthened ; volutions (5 — 6) high, rather convex, the 

 sutures depressed and strongly defined ; costse (about 15 to a volution) depressed, distinct 

 at the upper and vanishing towards the lower part of each volution ; the aperture is of 

 moderate size, ovate^ the lips rather thickened. 



The breadth of each volution is about one third more than its height ; the costae are 

 only faintly marked ; there are no traces of encircling striations or tubercles. 



Geological Position and Locality. The Great Oolite of Minchinharapton, communi- 

 cated by E. Witchell, Esq. 



Cerithium ? pulchrum, Lye. Tab. XLIV, fig. 4. 



Testa parva, crassa, tmrifo-subulata, anfractibus (8) convexis, suturis valde impressis, 

 costis transversis, obliquis, maynis {circa 12 in ambitu), lineis lonyitudinalibus decussatis, 

 apertura parva ovata, canali nidlo. 



Shell small, thick, elongately turreted ; volutions 8, convex, the sutures deeply im- 

 pressed ; transverse costal about 12 to each volution, oblique, large, decussated, and 

 rendered nodulous by six narrow encircling Unes ; aperture ovate, rather contracted ; no 

 canal. 



Allied to Cerithium costellafum, Desh., from which it differs in having fewer volutions, 

 and in possessing encircling lines. C. bulimoides, Desh., with a similar general figure, has 

 the costae smaller, fewer, and perpendicular. 



Geological Position and Locality. The Great Oolite of IMincliinhampton Common, 

 collected by Mr. Witchell. 



Nerin^ea granulata, Phil., sp. Tab. XXXI, figs. 12, 12 «. 



Terebra guanulata, Pliil. Geol. York., i, pi. 7, fig. IC, p. 173. 

 Cerithium ghanulatum, Mor. Cat. Brit. Foss., 1854, p. 240. 



Testa subulato-turrita, anfractibus numerosis angustalis, planis, sed inferne subconcavis, 



