90 



RECENT MARINE SHELLS. 



Amphidesma prismaticum. Ireland, 

 ovale. Ayr. 

 convexum. Ayr. 

 compressum. Ayr. 

 Corbula nucleus. Common. 



cuspidata. Bute. 

 Saxicava rugosa. Common. 

 Venerupis perforans. Ireland. 

 Psammobia Ferroensis. Ayr, Bute. 



costulata, Turt. Ayr. 

 Tellina tenuis. Clyde, Bute. 

 solidula. Common, 

 crassa. Ayr; Ireland, 

 donacina. Ayr, Arran, Clyde, 

 punicea. Arran, Cumbra. 

 depressa (squalida, Mont. ). 



Ayr, Bute, &c. 

 fabula. Bute, Arran, &c. 

 vespertina, Mont. Loch 

 Ryan. 

 Lucina undata (Venus, Pennant). 

 Bute, Ayr. 

 flexuosa. Bute, Ayr. 

 radula (Tellina, Pennant). 

 Arran, Ayr, &c. 

 Donax trunculus. Clyde. 



striata, Bryce. Ireland. 

 Crassina (Astarte, Sowerby) Danmo- 

 niensis. Ireland ; Bute. 

 Garensis (ovata, Br.) 



Clyde, 

 elliptica, Br. Clyde, Bute, 



&c. 

 depressa, Br. Clyde, 

 corrugata, Br. Clyde, 

 striata, Br. Bute, 

 scotica. Ayr. 

 WithamiP'N. S. Bute.* 

 Cyprina Isiandica. Common. 

 Cytherea exoleta. Common. 



lincta, Fl. Ayr. 

 Venus pullastra. Common. 



virgin ea. Ayr, Bute, Clyde, 

 fasciata (Paphia, Mont.). 



Bute, 

 ovata, Mont. 



Common, 

 gallina (Ortygea, Leach). 



Common, 

 decussata. Clyde ; Ireland, 

 cancellata. Ireland. 



Venus dysera. Ireland, 

 reflexa. Arran. 

 laminosa. Ireland, 

 aurea. Ayr ; Ireland, 

 senea, Fl. Ireland ; Ayr. 

 cassina. Ayr ; Ireland, 

 rugosa (Ortygea, Leach). Ayr. 

 sulcata, Mont. Bute. 

 Prideauxiana. Leach. 

 Cardium edule. Common. 



aculeatum. Common, 

 echinatum. Clyde, 

 fasciatum. Ireland, 

 exiguum. Ayr, Bute, Clyde, 

 ciliare. Bute, 

 lsevigatum. Common, 

 medium. Ayr ; Ireland, 

 nodosum, 

 elongatum. 

 Hiatella arctica, Fl. Bute. 

 Area Noe. Ireland. 



barbata. Ireland. 

 Pectunculus glycimeris. Ireland, 

 pilosus. Arran, Ayr. 

 Nucula rostrata. Clyde, Bute, 

 tenuis. Bute, 

 margaritacea. Common, 

 oblonga. Ayr. Br. 

 truncata- Ayr. 

 nitida, Sowerby. Bute. 

 Modiola Vulgaris. FL Common, 

 discors. Ayr, Arran. 

 discrepans. Clyde. 

 Mytilus edulis. Common. 



pellucidus. Clyde. 

 Pinna ingens. Ireland. 

 Lima tenera. Arran. 



fragilis. Br. Bute. 

 sinuosa. Bute. 

 vitrina. Ireland, 

 inflata. Ireland. 

 Pecten maximus. Ayr, Bute, Arran. 

 medius. Ireland ; Bute, 

 opercularis. Common, 

 varius. Bute, Ayr, &c. 

 Jacobeus. Ireland. 

 Islandicus? Clyde, Bute.-f- 

 niveus. Cumbra. 

 obsoletus. Clyde, Bute, Ayr. 

 pusio. Clyde. 

 nebulosus,i Br. Bute. 



* One valve of this shell was dredged in deep water in Rothsay Bay, ap- 

 parently the same as that found by Mr Wit ham in Yorkshire, and figured 

 in Fig. 24 and 25. 



■f I suspect this shell is only to be found in the ancient deposits. 



I This shell was discovered by Mr John Blythe, Glasgow, and is describ- 

 ed in the second number of the Edinburgh Journal of Natural History, p. 9. 

 It is almost circular ; ears nearly equal, with seven broad, unequal, flattish, 

 ribs: margin crenated ; inside white, with a pearlaceous lustre; about two 

 inches in diameter. 



