M 
THE CRETACEOUS ROCKS OF BRITAIN. 
36 3 o 
Lower Chalk Fossils. 
Fig. 3—Ahl [Acanthoceras] rotomagensis, Brongn. (half nat. size). 3u, side 
view ; 36, front view. 
„ 4—Turrilites costatus, Lam. ( two-thirds nat. size). 
„ 5—Turrilites Morrisi, Sharpe (nat. size). 
„ 6—Scaphites sequalis, Sow. (nat. size). 
,, 7- Unicardium ringmeriense, Mant. (nat. size) 
