348 PROF. E. FORBES ON LOWER GREENSAND FOSSILS. 



122. ? Turritella granulata Sow. M. C. t. 565. f. 1 ? 

 Loc. Ingoldsthorpe, Norfolk. (Impressions.) 



123. Turbo Yonninus D'Orbigny, T. C. pi. 183. f. 8—10. ? 

 Loc. Maidstone. 



124. ? Turbo munitus. Sp. nov. (PI. iv. fig. 2.) 



T. ? testa conica, anfractibus 5, convexis, spiraliter trans- 

 verseque striatis, superioribus 2-earinatis, ultimo 5-carinato, 

 superne planato ; apertura orbiculari angulata. 



Diam. 1 J ; alt. 1^ unc. 



Shell conic, thick, with very convex whorls, all of which are 

 regularly and finely striated spirally, and crossed by somewhat 

 irregular undulating lines of growth. The ridges between the 

 spiral stria? are alternately larger and smaller. The upper whorls 

 are encircled by two strong keels, and are flattened in the broad 

 space between the uppermost keel and the suture. The body 

 whorl is encircled by five keels, of which the three lowest are 

 close together. Its summit is also flattened. The spaces between 

 the others are hollowed out. The keels are rugged where crossed 

 by furrows of growth. 



Loc. Peasemarsh. 



125. Trochus albensis D'Orbigny, T. C. pi. 177. f. 1—3. ? 



A small, depressed, umbilicated, smooth shell of three or four 

 whorls, the last of which is rounded. 



Loc. Peasemarsh. 



126. Trochus decussatus (Littorina sp.) Deshayes in Leymerie, 



t. 17. f. 6. . 

 A conical turreted shell with five or six rounded spirally fur- 

 rowed whorls. 



Loc. Maidstone. (The specimen in the collection is \ of an 

 inch high, and about the same breadth at the base.) 



127. Solarium minimum. Nov. sp. (PI. iv. fig. 3.) 



S. testa elevato-conica ; anfractibus planis, spiraliter sul- 

 catis, at suturis marginatis granulatis ; ultimo angulato, 

 marginato, margine crenato ; basi convexiusculo, concentrice 

 striato, profunde umbilicato, umbilici margine crenato ; 

 apertura angulata. 



Alt. OjJq unc. ; lat. idem. 

 A very minute but very distinct species. It is conical, with an 

 acute spire of five or six flat whorls, which are marked by six to 

 seven spiral furrows. At the margin of the suture the furrows are 

 crenated, and round the angled base of the last whorls runs a 

 crenated band. The base itself is convex and finely striated 



