278 



PROCEEDINGS OF THE GEOLOGICAL SOCIETT. 



[Feb. 5, 



takes a good polish., and, having been quarried at Alwalton from 

 ancient times, has been called " Alwalton Marble." The long 

 slender disengaged shafts which decorate the exquisite and unique 

 Early English front of Peterboro' Cathedral (dating from the 13th 

 century) were originally composed of this " marble." 



Prom these beds, and from a small patch of Cornbrash near 

 Stilton, I have obtained the following fossils, those from the Corn- 

 brash being in exceedingly fine preservation : — 



Cornbrash Fossils. 



Anomia semistriata, Bean. 

 Avicula echinata, Sow. 

 Lima duplicata, Sow. sp. 



impressa, Mor. $• Lye. 



lseviuscula, Sow. sp. 



pectiniformis, Schloth. sp. 



rigida, Sow. sp. 



rigidula, Phil. sp. 



Ostrea (Exogyra) lingulata, Walton, 



Marshii, Sow. 



, large flat smooth sp. 



, several examples of different sp. 



(mimetically marked by contact with 



Trigoniae). 

 Pecten anisopleurus, Buv. 



articulatus, Schloth. 



annulatus, Sow. 



demissus, Phil. 



inasquicostatus, Phil. 



lens, Sow. 



Michelensis, Buv. 



vagans, Sow. 



, (a var.). 



, new sp. ? 



, new sp. ? 



Cardium cognatum, Phil. 

 Cypricardia caudata, Lycett. 

 G-oniomya V-scripta, Sow. sp. 

 Homomya crassiuscula, Mor. <$[ Lye. 



gibbosa, Sow. sp. 



Isocardia tenera, Sow. 

 Lucina striatula, Buv. 

 Modiola gibbosa, Sow. 



imbricata, Sow. 



Lonsdalei, Mor. $ Lye. 



Sowerbyana, oV Orb. 



Myacites calceiformis, Phil. sp. 



decurtata, Goldf. sp. 



recurva, Phil. sp. 



securiformis, Phil. sp. 



sinistra, Ag. sp. 



, new sp. ? 



Pholadomya acuticosta, Sow. 



Pholadomya deltoidea, Sow. 



lyrata-, Sow. 



Phillipsii, Morris *. 



Trigonia Scarburgensis, Lycett. 



Ebynchonella Morieri, Dav. 



concinna, Sow. 



obsoleta, Sow. 



varians, Schloth. 



Terebratula Bentleyi, Morris. 



, a variety. 



coarctata, Park t. 



intermedia, Sow. 



lagenalis, Schloth. 



sub-lagenalis, Dav. 



maxillata, Sow. 



obovata, Sow. 



ornithocephala, Sow. 



, undescribed sp. 



Bulla, large new sp. 

 Chemnitzia simplex, Mor. $ Lye. 



vittata, Phil. 



, sp. ? 



Dentalium, new sp. 

 Pleurotomaria granulata, Sow. sp. 



Ammonites Herveyi, Sow. 



macrocephalus, Schloth. 



modiolaris, Lhwyd. 



Belemnites, new sp.? 



Serpula intestinalis, Phil. 



squamosa, Bean. 



tetragona, Sow. 



Clypeus Miilleri, Wright. 

 Echinobrissus clunicularis, Lhwyd. 



orbicularis, Phil. sp. 



Holectypus depressus, LesJce. 



Icthyosaurus — teeth, vertebras, and 



other bones. 

 , small individual— jaws and 



bones. 



* One large example lias a brilliant nacre. 



t Found in Great Northern Eailway cutting north of Peterboro' (North- 

 amptonshire). Presented to me by Mr. Bentley, Feb. 5, 1873. 



