. St. Germain, Meudon, and England : rather 

 33. crassa ■; ^^^^ ^ 



396 Mr. Weaver 07i M. Alclde d'Orbigny's View 



Localities. 



28. Cristellaria Gaudryana Only at St Germain: rare. 



r Very common at Sens in the complete state, at 

 T • 1 -1 -J I St. Germain only young, and adult very 



29. L.tuola naut.loidea J. ^^^^j^ ^^ jvieudon. Occurs also in the chalk 



\_ of England. 



„^ T. 1- tr 1. ■ i Very common at Meudon, St. Germain, and in 



30. Rotalma Voltziana < t/„ i j 



|_ Ji.nglana. 



,,. , ,. . r Common at St. Germain, Meudon, and in 



31. Micheliniana ... -{ t:< i j . o 



1^ England ; rare at Sens. 



r Common at Meudon and St. Germain ; rare at 



Sens and in England ; common also in the 



.... j tertiary tracts of Austria. Its analogtie is 



3-- umDUicata < ^^^^^ jj^j^^^ ^j. ^■^^^■^^^■^ ;„ ^j^g Adriatic, there 



being no difference between the fossil and 

 living species. 



i " " 



_, ,. . r St. Germain, England, and upper chalk of 



34. Cord.enana ...| Maestricht. 



35. Globigerina cretacea St. Germain and England. 



36. elevata Common near Sens; rare in England. 



37. Truncatnlina Beaumontiana. Meudon and England : rare. 



_ ,. X • f Common at St. Germain and Meudon : rare at 



38. Rosahna Lorne.ana | Sens and in England. 



39. Clementiana Rare at St. Germain, more common in England. 



40. Valvulina gibbosa St. Germain : rare. 



41. Verneuilina tricarinata St. Germain and Sens : rather rare. 



,..,.., f Very common at Meudon : rare at St. Germain 



42. Bulimma obtusa | ^^'j i^ England. 



, ,. f Very common at Meudon, St. Germain, Sens, 



43. obl.qua I ^^^ -^ England. 



..... f Very common at Sens ; rare at Meudon, St. 



44. variab.bs | Germain, and in England. 



f Very common at 3Ieudon, St. Germain, and 



45. brev.s | gens. 



46. Murcliisoniana ...St. Germain and England: rare. 



47. Uvigerina tricarinata Sens: very rare. 



_, ,. . . f Very rare at Sens and St. Germain ; very com- 



48. Pyruhna acuminata | mon at Meudon. 



_, , . r Meudon, St. Germain, and Sens : rather com- 



49. Gaudiyma rugosa ■< ^^^ 



.J f Rather common at Meudon, Sens, St. Germain, 



50- pupoides I ^,^j .^ England. 



51. Textularia trochus Only at Meudon. 



r Sens, Meudon, St. Germain, and England, 



52. turns J u i • & ' 



(^ without being common. 



53. Baudouiniana St. Germain and Meudon : rare. 



54. Sagrina rugosa St. Germain and Meudon. 



From the preceding list it appears, that of the fifty-four 

 species found in the white chalk of the Paris basin, thirty- 

 eight occur at Meudon, thirty-three at Saint Germain, and 

 tisoenty-cight at Sens: of these numbers, nine are peculiar to 

 Meudon, two to Saint Germain, and six to Sens, while all 

 the others are simultaneously common to two or three locali- 

 ties, thus proving the perfect identity of the beds. It will be 

 seen also, that of these fifty-four species, twenty-two are com- 

 mon to the white chalk of Enuland also. 



