26 
THE CRETACEOtJS ROCKS OF BRITAIN. 
Zone of 
A. varians 
Higher 
Beds. 
Actinocamax lanceolatus, Sow. - - - - 
+ 
+ 
„ plenus, Blainv. (Fig. 10) 
G 
Nautilus atlas, Whiteaves ----- 
+ 
„ elegans, Sow. ------ 
C 
„ expansus, Sow.- ----- 
+ 
,, deslongchampsianus, d’Orb. 
c 
,, sublsevigatus, d’Orb. ----- 
+ 
+ 
Ammonites (Haploceras) Austeni, Sharpe (Fig. 8) 
r 
e 
,, (Acanthoceras) cenomanensis, d’Arch. - 
+ 
+ 
,, (Hoplites) falcatus, Mant. 
+ 
,, ( „ ) „ var. curvatus, Sow. - 
+ 
,, ( ,, ) lewesiensis, Mant. - 
+ 
„ (Acanthoceras) Mantelli, Sow. 
c 
r 
„ ( ,, ) navicularis, Mant.- 
c 
r 
( ,, )rotomagensis,cT Orb. (Fig.3) 
c 
c 
„ (Schloenbachia) varians, Sow. (Fig. 0) - 
c 
r 
„ ( ,, ) Coupei, Brongn. - 
c 
r 
Scaphites aequalis, Sow. (Fig. 6) - 
c 
r 
Hamites armatus, Sow. (Anisoceras) 
+ 
,, simplex, d’Orb. . 
+ 
Baculites baculoides, Mant. . 
c 
Turrilites costatus, Lam. (Fig. 4) 
c 
,, Morrisi, Sharpe (Fig. 5). 
c 
„ scheuchzerianus, Bose. - 
c 
,, tuberculatus, Bose. ----- 
c 
„ Wiesti, Sharpe . 
+ 
Gasteropoda are not generally common, but some species occur in 
tlie Chloritic Marl and in the local basement beds of the Lower Chalk, 
and also at a certain horizon about 46 feet above the base near 
Folkestone. The commoner species are: — 
Aporrhais Mantelli, Gardner 
„ oligochila, Gardner 
Avellana cassis, d’Orb. 
Cerithium ornatissimum Desk. 
Dentalium majus, Gardner 
Emarginula Gresslyi, Pictet 
Pleurotomaria brongniartiana, d’Orb. 
,, cassisiana, d’Orb. 
„ perspectiva, Mant. 
Solarium bicarinatum, Tlessen (Fig. 12) 
Turbo rotomagensis, d’Orb . 
