and the Deposit in ivhich it was imbedded. 287 



tiary formation of Aix in Provence*, yet both there and at ffiningen the forms 

 and generic characters of the fossils, with few exceptions, accord with those 

 of the insects now living in each district. 



Crustacea. 



A species resembling- Cancer Jluviatilis (Potamophilus of Latreille), is cited 

 by M. Brongniartf ; and crabs are figured by Karg from the Lavater and 

 Gessner collections. Other specimens of Crustacea are to be seen in the 

 museum at Carlsruhe. Cypris resembling^ C.faha, occurs abundantly, as has 

 beeil noticed in the sections of the quarries. 



Conchifera. 



Anodonta Lavateri^ is the only bivalve which I have observed ; but it is 

 very abundant. 



MoUusca. 



Limnea resembling L. oviwi^; and a very small, much flattened, Planorbis 

 of a species not yet determined jj. 



Plants. 



A very long catalogue is to be seen in Karg's memoir, wherein he men- 

 tions many species of modern European forest trees, shrubs, flowers, ferns, &c., 

 for some of which he refers to the figures in Scheuchzer and Knorr. 

 M. Gmelin, Professor of Botany at Carlsruhe, has also assured me that many 

 of the fossil vegetables of ffiningen in the museum of that place were not dis- 

 tinguishable from existing species 1[. If these identifications have been pushed 

 too far, the specimens in this country, which have been closely examined by 

 eminent botanists, prove that most of the ffiningen leaves in the British Mu- 

 seum belong to dicotyledonous plants, and that they all have a modern cha- 

 racter. A pentapetalous flower in this collection has been recently figured 

 by Mr. Konig, and named by him Viburnmn CEningcnse**. 



Mr. R. Brown has discovered that among these plants, one is almost undis- 



* Described by Mr. Curtis in a Memoir by Mr. Lyell and myself; Edinb. Phil. Journal. 

 No. XIV. p. 287— 298. See also by M. Marcel de Serres. 



f Cuvier and Brongniart, Env. de Paris, p. 309, I Ibid. § Ibid. 



II Patella (Anci/lus) lacustris? and other shells are cited by Karg. 



% Amongst these he enumerates Populus tremula, Beiula Alnus, Sulix caprea, S. alOa, 

 S. viminalis, S. Helix (purpurea), Acer pseudo-platanus, Fraxinus excelsior, Sparganium 

 erectum, Potamogeion naians, P. pusillum, Confervse, &c. 



** Icones Fossilium Sectiles, ined. 



