296 
MR. CLEMENT REID ON EAST NORFOLK GEOLOGY. 
From the sunk well Mr. J. C. Mellis obtained for me, in 1900, 
a large box of shelly sand, which yielded the following characteristic 
Weybourn Crag species. As to the wood, he writes : “I cannot 
vouch for the wood coming from the depth, though the men say it 
did.” I notice, however, that the sand is full of fragments of 
wood, the clefts of which contain cemented shell-sand. I think, 
therefore, that we may accept the pine wood and the alder cone as 
truly belonging to the Weybourn Crag period. 
Land and Freshwater Species. 
Pinus (wood). 
Alnus (axis of cone). 
Helix iiispida. 
Pupa muscorum. 
Limn^ea truncatula. 
„ PALUSTRIS. 
Planorbis spirorbis. 
Planorbis albus. 
,, CORNEUS. 
Litiioglyphus fuscus. 
Yalvata. 
Corbicula FLUMINALIS. 
PlSIDIUM AMNICUM. 
Arvicola intermedium 
Marine 
Buccinum undatum. 
Littorina littorea. 
„ RUDIS. 
Natica clausa. 
,, JOHNSTONI. 
Purpura lapiclus. 
ScALARIA GROENLANDICA. 
Turritella terebra. 
Trociius. 
Astarte borealis. 
,, COMPRESSA. 
Cardium edule. 
Corbula gibba. 
Cyprina ISLANDICA. 
Donax. 
Species. 
Leda oblongoides. 
Mactra ovalis. 
Mya arenaria. 
Mytilus edulis. 
Nucula cobboldiae. 
„ NUCLEUS. 
Pholas crispata. 
Tellina balthica. 
„ CALCAREA. 
,, OBLIQUA. 
Balanus CRENATUS. 
,, PORCATUS. 
Platax WOODWARD I. 
Raja. 
The above lists show that at North Walsham, as at Cromer, we 
find a singular association of a sub-arctic marine fauna with 
a temperate or slightly southern freshwater fauna. The two are 
unmistakably contemporaneous, for the delicate freshwater shells 
