of the Diluvium in Norfolk, 311 



Lima, an elegant little species, not yet figured. 



Lingula ovalis, with an ammonite and tellina. 



Lutraria amhujua, in a boulder with 



Gervillia aviculoides. 



Modiola Ilillani, cuneata, aspera, and some others, resem- 

 bling parallela and elegans. 



Mya literata or J/*scripta, and two or more species unde- 

 termined. 



Nautilus, a cast in flint of an oblique species. 



Nucula triyonia, ovum, and claviformis ; the latter imbedded 

 in a septarium, with a rostellaria possessing two processes on 

 its outer lip. 



Ostrea deltoidea, carinata, and Marshii. The numerous 

 species and A^arieties in this genus defy designation. I have, 

 therefore, only noticed those, in my collection, that I can 

 satisfactorily identify with Mr. Sowerby's figures. 



Patella latissima. Mr. G. B. Sowerby, in his Work on the 

 Genera of Shells, says, '' The patella latissima and IcBvis of 

 mineral conchology may possibly be the upper valves of or- 

 biculae." 



Pecten corneus, orbicularis, arcuatus, lens, fibrosus, nitidus, 

 lamellosus, cinctus, barhatus, vimineus, and vagans. 



Perna maxillata, Sowerby's Genera of Shells, Perna, 

 plate II., fig. 1. In a boulder, associated with pecten lens, 

 ammonites excavatus, and astarte planata. 



Pinna tetragona and affinis, 



Plagiostoma gigantea, spinosa, Hoperi, and riyida. 



Rostellaria, scalaria, serpula, and tellina, the species of 

 which have not yet been determined. 



Terebratula crumena, tetraedra, subrotunda, subundata, 

 semiglobosa, odoplicata, plicatilis, obliqua, lata, ovoides ; 

 and there are found, in the diluvium, several species not yet 

 figured by Sowerby. One (in my collection) is the young of 

 a spinous terebratula, figured, by the Rev. Joseph Townsend, 

 in his Geological Researches, plate XIV, figs, 8 and 9. 



Trigonia clavellata, alceformis, costata, and a very depressed 

 variety of the latter. 



Trochus punctatus, and casts of trochi, are found in calca- 



