278 



PEOCEEDIKGS OF THE GEOLOGICAL SOCIETY. 



[Feb. 7, 



The list of Caithness shells combines Mr. Peach's two lists (for 

 which see *Brit. Assoc. Eeport' for 1862, Trans, of the Sections, p. 83, 

 ihid. for 1864, p. 61), and also some additional species enumerated 

 in a paper lately communicated by him to the Physical Society of 

 Edinburgh. 



For the Port "William list see Jeffreys in the ^ Brit. Assoc. Eeport * 

 for 1862, Trans, of the Sections, p. 73. Por that from Ehe see the 

 Rev. Thomas Brown in the ^Proceedings of the Boyal Society of 

 Edinburgh' for March 2nd, 1863. The others will be found in the 

 Appendix to my paper in the ' Quart. Journ. Geol. Soc' vol. xxi. 

 p. 161, 1865. 



In the two following Tables 



Southern means species living on the west coast of Europe, to the south of 



lat. 50°. 

 British means species Uving on the coasts of Britain. 

 Northern means species living on the west coast of Europe, south of lat. 60° 



and the Arctic circle. 

 Arctic means species living within the Arctic circle. 

 N. E. American means species living on the east coast of North America. 



Table I. — List of Mollusca whose Shells are found in the Glacial 

 Drift of Caithness. 



No. 



Anomia ephippium, var. squamula 



Aporrhais pes-pelecani 



Astarte borealis=A. arctica, of Forbes ^ Hanley . . 



compressa 



-^ sulcata 



sulcata, var. elliptica 



Buccinum undatum 



Cardium echinatum 



edule 



exiguum = C. pygmseum, F. ^ H. 



fasciatum 



Groenlandicum 



Norvegicum 



Cerithiopsis costulata=Turritella? costulata, Mbller. 



Chiton cinereus 



Crenella decussata 



Cyprina Islandica 



Cyrtodaria (Glycimeris) siliqua 



Dentalium abyssorum 



en talis 



Donax vittatus = D. anatinus, F. 8f H. 



Fusus antiquus 



Lacuna divaricata=L. vincta, F. 8f H. 



Leda minuta=L, caudata, F. 8f H. 



pernula, var. buccata 



pygmgea 



Littorina litorea 



