192 
THE CRETACEOUS ROCKS OF BRITAIN. 
List of Fossils from the Lower Chalk of Bedfordshire 
and Hertfordshire. 
Gasteropoda. 
Aporrhais subtuberculata, Gard. - 
Avellana cassis, d'Orb. - - 
Cerithium ornatissimum, Desk. 
Dentalium sp.. 
Fusus ?. 
Pleurotomaria brongniarli uia, d'Orb. 
,, sp.(elevated) - 
Trochus sp. (cast) - 
Lamellibi xinch i at a. 
Area carinata ? Sow. 
Anomia papyracea, d’Orb. 
Avicula sp. (new) .... 
Exogyra haliotoidea, Sow. 
Inoceramus latus, d’Orb. non Mant. 
„ mytiloides ? Soiv. 
Lima aspera, Mant. .... 
„ echinata, Eth. - 
„ globosa, Sox. - 
„ new sp. 
Ostrea frons, Park. - 
„ cf. semiplana, Sox 
„ vesicularis, Lam. - 
Pec ten Beaveri, Sow. 
„ arlesiensis, Woods. 
„ dubrisiensis, Woods. - 
„ elongatus, Lam. - 
„ fissicosta, Eth. 
„ orbicularis, Sox. - 
„ sp. (many close set rilis) 
„ (Neithea) qninquecostatus, Sow. 
Plicatula inflata, Sow. 
Pholadomya decussata, Phil. - 
Spoudylus striatus, Sow. - 
Teredo ampbisbajna, Sow. 
B rachiopoda. 
Kingena lima, Defr. - - - - 
Rhynchonelia Cuvieri ? d'Orb. 
„ grasiana, d’Orb. 
„ mantelliana, Sow. - 
„ Martini, Mant. 
„ plicatilis, Sow. - 
Terebratula biplicata, Sow. 
„ squamosa, Mant. 
„ semiglobosa Sow. 
„ sulcifera, Morris - 
Terebratulina striata, Wahl. - 
Crustacea. 
Enoploclytia sussexiensis, Mant. 
Glypluea cretacea ? McCoy 
Paltega Carteri, Woodw. - 
Pollicipes glaber, Roemer 
Scalpellum sp.. 
Annelida. 
Serpula annulata, Reuss. 
„ umbonata, Sow. - 
Echinodennata. 
Astrogonium Smithise, Forbes - 
Discoidea cylindrica, Lam. 
Hemiaster Morrisi ? Forbes - 
Holaster subglobosus, Leske - 
„ trecensis, Leym. 
Pentacrinus Fittoni, Ag. - 
Brachiolites sp. 
Varians. 
Zone. 
Tottern- 
hoe Stone. 
Chalk 
above 
Tot. stone. 
A. Plenus 
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