PROF. E. FORBES ON LOWER GREENSAND FOSSILS. 349 



concentrically. The umbilicus is very deep and has a crenated 

 margin. 



Loc. Atherfield. 



128. ? Solarium Benstedi. Nov. sp. 



S? testa conica, anfractibus 6, planis, transverse sulcatis, 

 ultimo marginato. 



Alt. 0^- unc. 



Too imperfect for figuring, but very distinct. It resembles in 

 form the Trochus striatulus of Deshayes (Leymerie, t. 17. f. 1.), 

 but differs in being transversely instead of spirally striated. I 

 have not seen the base. 



Loc. Maidstone. 



129. Pleurotomaria gigantea Sow. in Fitton, G. T. 2d ser. vol. 



iv. t. 14. f. 16. 



Loc. Boughton. 



130. Pleurotomaria Anstedi. Sp. nov. (pi. v. fig. 1.) 



P. testa subdepresso-conica, anfractibus 6, convexis, spi- 

 raliter striatis, striis inaequalibus, transverse substriatis, in- 

 ferne ad suturam forte marginatis ; sulco centrali crenato ; 

 basi excavato, umbilicato. (Nucleo lsevi). 



Diam. 3 ; alt. If unc. 



Shell conic, thick, the spire somewhat depressed and very obtuse. 

 The whorls are spirally striated ; the distances between the striae 

 are unequal. They are convex, slightly keeled in the centre, where 

 runs the crenated furrow, and strongly margined at the suture 

 below. The striae are crossed by lines of growth of varying 

 strength, and give in places a decussated appearance to the surface. 

 The upper whorls are slightly undulated. The base is not perfect 

 in any of the specimens, but appears to have been concentrically 

 striated and umbilicated. The upper part of the last whorl appears 

 to have been strongly undulated at intervals. This fine species is 

 allied to some of the French neocomian forms. The cast is 

 smooth. 



Loc. (Fuller's earth pits, Nutfield, near Reigate.) 



131. ? Pleurotomaria? 



The cast of a very conical Pleurotomaria or Trochus presenting 

 about nine flattened whorls. 



Loc. Sandgate. 



132. Scalaria? (Plate iv. fig. 4.) 



Whorls longitudinally ribbed, ribs arcuated and interrupted on 

 the body whorl by an obsolete keel surrounding the base. A 

 fragment of a shell nearly allied to Scalaria canaliculata D'Or- 



