300 



PROCEEDINGS OF THE GEOLOGICAL SOCIETY. 



t*Pterocera retusaj (Rosfellaria), Sow. 

 [Geol.Trs. 2ndSer.iv. pi. 18, f. 22]. 

 t*Cerithiuin Lallierianum, d'Ord. 

 t* — ^ — turriculatura. 



f* (var. /3). 



t* Neocoraiense. 



t* attenuatum. 



t* Phillipsii. 



t* Clementinum. 



Dentalium cylindricum, Sow. 

 fActseon albensis, d'Orb. {Torna- 

 tella, Forbes.) 



Natica rotundata. 



* Cornueliana, d^ Orb. 



*Rostellaria Robinaldina, d'Orb. 



glabra, Forbes. 



Ammonites Desbayesii, Leym. 

 t Hambrovii, Forbes. 



No. 5 b. Upper Range of Nodules. 



Panopsea plicata, Sow. 



Area exaltata, Nilss. 



Thetis minor, Sow. 

 fNatica rotundata. 



Trigonia caudata. 

 *Cyprina angulata. 



Astacoid remains, remarkably well- 

 preserved. 

 Modiola aequalis. Sow. 

 Rostellaria glabra. 



No. 7. 



Panopaea plicata, Sow. 



Corbula striatnla, Sow. 



*Tsocardia ornata, Forbes. 



*tCardium Cornuelianum. 



4 subhillanum. 



*Act8eon albensis?, d'Orb. 



Rostellaria Robinaldina, d'Orb. 



glabra, Forbes. 



Astarte numismalis. 



Trigonia caudata, Agass. 



rudis (Dsedalea), d'Orb. 



Area Raulini, d'Orb. 



Cornueliana. 



Nucula scapha, d'Orb. 



*Cyprina angulata. 



* (var. rostrata, Sow.). 



f Ostrea retusa. Sow. 



Ammonites Deshayesii, Leym. 

 *Holaster complanatus {Spatangus 

 retusus). 



No. 6. Clay. 



Vermetus polygonalis. 

 Serpula {Vermetus). 

 Ammonites Deshayesii. 



Sandy Clay. 



*Nucula spathulata, Forbes. 

 *Ammonites Deshayesii, Leym. 

 *Thetis minor. Sow. 

 *Gervillia linguloides, Forbes. 



Forbesiana, d'Orb. {solenoides.) 



f Pecten quinquecostatus. 



Astacus (portions of). 

 f Avicula lanceolata, Forbes. 



Lima semisulcata. 



(species). 



Gryphsea semiplicata ?, Roemer. 



Anomia radiata. 

 t*Tornatella marginata. 



No. 8. Clay. 



Panopaea plicata, Sow. 



irregularis. 



Corbula striatula. Sow. 

 f Hemicardium Austeni, Forbes. 



Area Raulini, d'Orb. 



Nucula antiquata ?, Sow. 

 * scapha, d'Orb. 



spathulata, Forbes. 



Venus Vectensis, Forbes. 

 *Cardium Raulinianum ? 



Gervillia linguloides, Forbes. 



Lima ? 



fPholadoraya Martini. 

 Pecten orbicularis. Sow. 

 Gryphsea harpa, Goldf. 

 Ammonites Deshayesii. 

 Vermetus polygonalis. 

 Holaster complanatus. 

 Serpula polygonalis. 



% The specimens referred to this species differ somewhat from the P. bicarina- 

 ta, in the absence of the peculiar gibbosity on the body whorl and the spreading 

 over or encrusting of the columella, and in having only two instead of three in- 

 termediate ribs (see d'Orb. fig. of P. bicarinata) between the larger carinae on the 

 last volution. It is very distinct from P. retusa, Sow., by the more elongated 

 form, and the less number of smaller costse which occur on the upper and lower 

 part of each volution. P. bicarinata is quoted as from the Gault of Ervy, &c. — M. 



