Praeger — On the Raised Beaches of N.E. Ireland. 37 



Geological Survey of Ireland (1876) this list is repeated, with the 

 addition of Pecten onaximus. 



Mr. Mark Stirrup, F.G.S., in his Paper on "The Raised Beaches 

 of County Antrim," ^ gives a list of " shells of old heach, mixed with 

 recent ones," found on the shore at Elilroot : the species which are not 

 marked as "recent" are — Mytilus edulis, Patella vulgata, Trochus 

 cinerareu-1, Littorina littoralis, L. litorea, Rissoa sp., Purpura lapillus, 

 Buccinum undatum, Nassa reticulata. 



The raised beach is seen along the shore west of Kilroot railway 

 station. On the foreshore, at Kilroot Point, there is a small exposure 

 of estuarine clay of the lower or Scrobicularia zone,^ resting on a 

 thin bed of submerged peat, which lies on red boulder-clay. Before 

 the present sea-wall was built, the gravels were seen to rest on 

 the estuarine clay, so that here we have the typical succession — 



Raised beach. 

 Estuarine clay. 

 Submerged peat. 

 Boulder-clay. 



The raised beach was formerly well exposed in gravel-pits by the 

 railway, a short distance west of Kilroot Station, and yielded many 

 rude flint implements, as has been recorded by Du IS'oyer^ and others ; 

 but these pits are lately worked out. On the shore the raised beach 

 may be seen as a thin band of sheU-bearing gravel three to four feet 

 above high-water mark, resting on boulder-clay, or on New Bed marls. 

 At one point the section is as shown in Plate I., fig. 2. I have the 

 following shells noted from the Kilroot raised beach : — 



Anomia ephippium. Patella vulgata. c, 



Ostrea edulis. Trochus cinerareus. 



Mytilus edulis. Littorina oitusata. v. c. 



Cardium edule. L. litorea. v. c. 



Venus exoleta. Cerithium reticulatum. 



Tapes decussatus. Nassa reticulata. 



T. aureus. Purpura lapillus. 



Tellina halthica. Buccinum undatum. 



Mactra sultruncata. Cyprcea europcea. 

 truncata. 



^ Proc. Lit. and Phil. Soc. Manchester, xvi. (1877). 

 "^ See " Keport on the Estuarine Clays," &c., p. 214. 

 ■' Joum. Geol. Soc. London, vols, xxiv, xxv. 



