GASTEROPODA. 93 



" This unique fragment possesses great interest, since the only 

 two cretaceous species previously known were from the Gault. It 

 is remarkable for the irregularity of its growth, the third whorl 

 bulging to the left and the second to the right ; this tendency per- 

 haps preceded the more regularly pupaeform shapes of the Gault 

 species." 



Locality. Upware (Coll. Mr J. F. Walker). 



SCALARIA KEEPINGI, Gardner. 



Scalaria Keepingi, Gardner. Geol. Mag., vn., 1880, p. 54, 

 pi. iii., fig. 7. 



" Whorls inflated, about twice as wide as high ; ribs of each 

 whorl coarse, rounded, very irregular, flexuous; striae very fine 

 and scarcely perceptible under a glass ; suture not visible. 



"This species, while resembling Neocomian forms in other 

 respects, differs from them all both in the nearly complete absence 

 of striae, and also by its concealed sutures." 



Length, 19 mm. 



Locality. Upware (Coll. Mr J. F. Walker, M.A. ; unique). 



CERITHIUM NEOCOMIENSE (d'Orb.), Forbes. 

 (Plate IIL, fig. 5, a, 6.) 



Cerithium Neocomiense, d'Orb.? Terr. Cret. II. pi. 232, f. 89. 

 Forbes. Quart. Jour. Geol. Soc., Vol. I., 



1845, p. 351, pi. iv., f. 8. 



A single prominent keel upon the upper whorls ; two keels 

 exposed upon the body-whorL 



Localities. Upware (Coll. Mr J. F. Walker), Atherfield. 



CERITHIUM MAROLLINUM, d'Orbigny. 

 (Plate IIL, fig. 6.) 



Cerithium Marollinum, d'Orb., Terr. Cre't., p. 353, pi. 227, 

 fig. 2, 3. 



Localities. Upware, Tealby, E. Shalford (Surrey). 

 S. Europe. Marolles (Aube), Yonne (Neocomian). 



