ADDENDA. 95 



KiLVERTIA FORMOSA, Lijc. Tab. XLIV, fig. 5. 



Testa parva subnlo-pupcBformi, anfradihus (6 ?) latis, planatis, suturis bene distinctis, 

 costis longitudlnalihiis rectis [circa 7 in ambitu) rotundis, depressis, inferne evanescentlbus ; 

 lineis trayisversis {circa 7) ret/ularibus, elevatis ; apertura parva suborbiculari, labris inte- 

 gris, simplicibiis. 



Shell small, elongated, pupa3form or lessening at both the extremities, volutions (6?) wide, 

 flattened or very slightly convex, the sutures well impressed, aperture small, suborbicular ; 

 the lips continuous without undulation ; longitudinal costse (about 7) straight, rounded, 

 and but slightly elevated, indistinct upon the latter volutions, knotted where they are 

 crossed by encircling lines, of which each volution has about seven, regular and conspicuous ; 

 the costse are not continuous, neither do their extremities exactly correspond at the sutures 

 of the successive volutions, they are more prominent npon the upper half of each volution ; 

 the apex is imperfect, the first volution having disappeared. 



Allied to Kihertia strangulata=Cerit1iium stranguJatum, D'Arch., from which it is 

 distinguished by the smaller dimensions, the greater elongation of the spire, and by the 

 costae, which are much smaller, more depressed, and do not form continuous elevations. 



Geological Position and Locality. Collected by E. Witchell, Esq., in the white (Great) 

 Oolite of Bussage, near Bisley Common. 



Amberleya capitanea, Gold/., sp. Tab. XLI, fig. 1. 



Part I, p. 65, contains a correct description of this species [Turbo capitaneus, Goldf.), 

 which is not uncommon in the Supra-liassic sands and the Inferior Oolite of the southern 

 counties ; Mr. Walton has also forwarded two small examples obtained in the Forest 

 Marble of Laycock, and of Pound Pill. The shell figured Tab. IX, Part I, fig. 33, was 

 referred doubtfully to this species, of which it was supposed to be a badly preserved 

 example ; subsequent examinations of other specimens from the same locality have proved 

 that this view was erroneous, and that it is a distinct species ; a description of this latter 

 shell will be found in this Supplement (p. 19) under the title of Amberleya Jurassi. 



Amberleya moniijfera. Lye. Tab. XLI, fig. 10. 



Testa parva, ovato-elongata, spira alta, acuta, anfracfibus (4 — 5) in medio carinatis, 

 tabulo-nodiferis, postice et antice concavis, cjusdetn carina parva, nodifera ; anfractu 

 ultimo basi sulcis quinis, concentricis, apertura antice subconfracto. 



Shell small, ovately elongated, spire elevated, acute, consisting of four or five volu- 



