NEWTON : CONCHOLOGICAL FEATURES OF LENHAM SANDSTONES. 75 



Nassa prismatica S. V. Wood : Mon. Pal. Soc, 2nd Suppl., 



1S79, pi. I, fig. 6, p. 2, and of Reid. 



Distribution — 



Recent ... ... .. Mediterranean Sea, etc. 



Scaldisian ... ... ... ... ... Belgium 



Astian ... ... ... ... ... ... Italy 



Plaisancian ... ... ... France (Rousillon) 



Coralline Crag "j -d v • 



^,° \ .'• ... ... ... Britain 



Lenham Beds J 



Anversian ... ... ... ... ... Belgium 



Redonian (Tortonian) France (N.W.) 



Messinian Germany (N.) 



Vindobonian ... ... ... Vienna Basin; Holland 



Burdigalian France (Dax). 



Collections — 



M.P.G., Nos. 453; C.R., 1279-1283. 



B.M. (Graham Wallas and Kennard). 



Fam. MURICID^. 



MuREx BADENSis Nyst. [Plate 3, figs. 23, 24]. 



Murex {Ocinebra) badensis Nyst: Ann. Mas. R. Hist. Nat. Bel- 

 gique, 1881, vol. 3, p. 4 {=Murex tortuosus J. de C. Sowerby, 

 1823, no7t Borson, 182 1). 

 Distribution — - 



Red Crag ... ... ... ... ... Britain 



Scaldisian ... ... ... ... ... Belgium 



Coralline Crag ... ... ... ... Britain 



Vindobonian ... ... ... ... ... Holland. 



Collection — 



M.P.G., No. 464- 

 BoREOTROPHON CLATHRATUM Linnaeus. [Plate 4, fig. 4]. 



Murex clathratus Linnaeus: Syst. Naturae, 1767, ed. xii., vol. i, 

 part 2, p. 1223 (= Trophon scalariforme S. V. Wood, 1848, 

 nan Gould). 

 Boreotrophon clathratuni Fischer: Man. Conchyl, 1884, p. 640. 



D is trio u lion — 



Recent... ... British and Arctic-American Seas, etc. 



Post-Pliocene ... ... Britain and Northern Europe 



Norwich Crag 



Red Crag j. Britain 



Coralline Crag 



Lenham Beds 



Bolderian ... ... ... ... ... Belgium. 



