DESHAYES ON THE FOSSILS OF THE PYRENEES. 



Ill 



I append in conclusion a table of those Mediterranean species 

 which, according to my researches, have very wide geographical 

 extension. 





Medi- 

 terra- 

 nean. 



Green- 

 land. 



Brit- 



Isles. 



Canary 

 Islands. 



Sene- 

 gal. 



Red 



Sea. 



Sechelle 



and 



Admiralty 



Islands. 



U.S. 



Cuba. 



W. Coast 



of 



New Holland. 





V 







Baltic 







— 



? 



Libj'a. 



? 



— and 

 Philippines. 



- 



— 



— and 

 N. Zealand. 



— Do. 



— and 

 Tonga-tabu. 



— Do. 





Solecurtus strigilatus L. ... 

 Scrobicularia piperata Gm. 



Psammobia vespertina L. ... 

 Diplodcmta rotunda Montf. 













Pcctunculus pilosus L 









Spondylus gasderopus L. ... 

 Fissurella graeca L 



Crepidula unguiformis Lam 



Paludina thermalis L 



Chemnitziaelegantissima j 



Ianthina bicolor Mke 



perversum Brg. 











D. T. A. 



II. On the Fossils of the Pyrenees. By M. Deshayes, Vice- 

 President of the Geological Society of France. 



[Read before the French Geological Society, June 17. 1844.] 



It has been established since the year 1830, as one of the 

 results of my investigations on the distribution of fossils in the 

 tertiary formations of Europe, that there exists no one species 

 common to the cretaceous and tertiary rocks, and at the period 

 alluded to I had already arrived at the opinion that all the cre- 

 taceous species were destroyed before the commencement of the 

 tertiary period. I have since defended this view, although it is 

 opposed to that held by many geologists, and particularly to 

 certain observations offered in the memoirs of the authors of 



