172 
THE CRETACEOUS ROCKS OF BRITAIN. 
List of Fossils from the Lower Chalk of Berkshire. 
Cephalopoda. 
Ammonites [Haploceras] Austeni, Sharpe 
„ [Acanth.] Mantelli, Sow. 
„ [ „ ] navicularis, Mant. 
[ „ ] rotomagensis, Brongn 
„ [Schloenb ] varians. Sow. 
,, t „ ] Coupei, Brongn. 
Baculites baculoides, Mant. - 
Scaphites cequalis, Sow. 
Turrilites Bergeri, Brong. 
„ costatus, Lam. 
„ / sclieuchzerianus, Bose. 
,, tuberculatus, Bose. 
Nautilus deslongchampsianus, d’Orb. 
„ sublsevigatus ?, d’Orb. ■ 
Actinocamax plenus, Blainv. 
Gasteropoda. 
Aporrhais Mantelli, Gardn. - 
Avellana cassis, d’Orb. - 
Cerithium ornatissimum, Desk. ■ 
Dentalium sp. .... 
Natica sp.. 
Pleurotomaria (casts) - 
Solarium sp.. 
Lamettibranch lata. 
Cardita tenuicosta, Sow, 
Inoceramus latus, d'Orb. non Mant. 
Luna aspera, Mant. 
„ echinata, Etli. 
„ globosa, Soiv. 
Ostrea vesicularis, Lam 
Pecten asper, Lam. 
„ orbicularis, Sow 
„ (Neithea) quinquecostatus, Soto 
Pholadomya decussata, Phil. 
Plicatula inflata, Sow. - 
Brachiopoda. 
Rhynchonella Martini, Mant. 
„ plicatilis, Sow. 
„ grasiana? d’Oi b. 
„ Schloenbachi, Dav. 
Terebratula biplicata, Sow. - 
„ semiglobosa, Sow. ■ 
Terebratulina striata, Wahl. 
„ triangularis ? Eth. 
Echinodermata. 
Discoidea cylindrica, Lam. - 
„ subuculus, Klein - 
Holaster subglobosus, Leslce ■ 
Salenia Austeni, Forbes - 
Spongida. 
Strepliinia convoluta, Hinde 
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