70 



JOURNAL OF CONCHOLOGY, VOL. 15, NO. 3, JULY, I916. 



Collection — 



M.P.G., No. 446. 



Fam. NATICID.^. 

 Natica spp. index. 



Including N. varians and N. millepunctaia which are both 

 recorded from the Lenham Beds by Mr. Reid, although it is 

 here considered that the material on which these determina- 

 tions were based is insufficient to justify their accuracy. 

 Collections — 



M.P.G., Nos. C.R. 1261, 1262 and 455, 456, 458. 

 B.M. (Graham Wallas and Kennard). 



Fam. CERITHIID^. 



Ptychopotamides tricinctus Brocchi. [Plate 3, fig. 3]. 



Murex tricinctus Brocchi : Conch. Foss. Subapennina, 18 14, 



vol. 2, pi. 9, fig. 23, p. 446. 

 Ptychopotamides tricinctus Sacco : Moll. Terz. Piemonte, 1895, 

 part 17, pi. 3, figs. 8 and varieties 8'''^ to 10, pp. 44, 45. 



Distribution — 



Glacial 









Norwich Crag >■ 







Britain 



Red Crag 









Scaldisian 



. 





Belgium 



Astian 1 

 Plaisancian \ 







Italy 



St. Erth Beds \ 

 Lenham Beds J 







Britain 



Redonian (Tortonian) 



... 





France (N.W.) 



Vindobonian 



. 



... 



Italy. 



Collections — 









M.P.G., No. 445- 









B.M. (Graham Wallas and Kennard). 





Fam. SCALID^. 









SCALA SUBULATA, J. de C. 



Sowerby. 



[Plate 



4, fig- 5]- 



Scalaria subulata, J. de C. Sowerby 



: Mineral Conchology, 1823 



vol. 4, pi. 390, fig. I, 



p. 125. 







Distribution — 









(?) Recent ... 



. Atlantic ; 



Teneriffe : G. Jeffreys 



Red Crag 



. 



... 



Britain 



Scaldisian "1 

 Diestian i 



. 



... 



Belgium 



Coralline Crag \ 

 Lenham Beds / 





... 



Britain.! 



