28 SUPPLEMENT TO GREAT OOLITE MOLLUSCA. 



ACTEONINA SCARBURGENSIS, LyC. Tab. XXXI, figS. 13, 13 . 



Testa ovata ventricosa lavigata, spira brevi obtusa, anfractibus (4) convcxis, anfractu 

 ultimo ad suturam subcanaliculato ; apertura anffiistata, columella ad basin maryinata. 



Shell ovately ventricose, smooth ; spire short, obtuse, consisting of four narrow, convex 

 volutions ; the last volution has the sides slightly convex, its upper margin rounded and 

 slightly channeled at the suture ; the aperture is narrow, somewhat expanded at the base, 

 which is marginated at its junction with the columella. 



A handsome ventricose shell, shorter and more tumid than A. convoluta, Lye., which 

 appears to approximate more nearly to it than other recognised species. 



Length 14 lines, diameter of the last volution 10 lines, length of the aperture 11 lines. 

 The specimen figured is from the fine collection of Mr. Leckenby ; the test, which is thin, is 

 partially preserved ; it has a corneous aspect. A single specimen. 



Geological Position and Locality. The Cornbrash of Scarborough. 



ACTEONINA SCALARIS, Lye. Tab. XLIV, fig. 18. 



Testa parva, subcylindracea, spira brevi, acuta, anfractibus 4, lateribtis anymtis platiutis, 

 marginibus acutis, superne tabulatis ; aperturd elongatd, basi elliptico curvato. 



Shell small, subcylindrical ; spire short, but elevated and acute, consisting of four 

 narrow volutions, which are flattened upon their sides, their upper borders are acute, their 

 upper areas are flattened ; the aperture is moderately large and lengthened, its base is 

 elliptically curved. 



The length is 3 lines, the opposite diameter but little exceeds 1 line. 



The upper angle of each volution is acute, and even slightly projects outwards, a 

 character which is not seen in any other known species with an elevated spire. Possibly 

 this is the young condition of a much larger species. 



Geological Position and Locality. The Great Oolite of Kirklington, Oxon., collected 

 by Mr. Whiteaves. 



DENTALIUM KNTALOIDES, Desl Tab. XXXI, figs. 11, 11 a, 11 b. 



DENTALIUM , Phillips. Geol. York., i, pi. 4, fig. 37. 



GLABELLUM, Bean. Cornbrash Fossils, Mag. Nat. Hist., 1839, without 



figure or description. 



ENTALOIDES, Deslongchamps. 1842. Mem. Soc. Linn., vii, p. 128, tab. vii, 

 figs. 3038. 



D'Orb. Prodrome, i, p. 2/2, No. 205. 

 PARKIN SONI, Quenstedt, Handbook, t. 35, fig. 19. 



