Frcsh-ioutcr Furiaations o/' Aix, in Provence. 293 



racters of many of these remains, the comparatively recent date 

 of the whole group. That the deposites of Fuveau and Aix arc 

 of the same epoch, may be inferred, not merely from the conti- 

 nuity of fresh water strata between those two places, and the 

 absence of any interpolated marine formation, but also because 

 among the fossil shells, some of those which characterize the 

 escarpment north of Aix, (as the Pofamides Lamarckii, Bulhmis 

 terebra, and B. pygmeus); and others found near Fuveau, (as 

 the Lymneus ovum, and Planorbis rotundatus), are all com- 

 mon to one and the same fresh-water formation in the Cantal *. 



On the KoproUtes of the Aix Deposite. 



In the insect bed above Aix, we found an incurvated fossil 

 body, somewhat resembling the larva of an insect, but, on exa- 

 mination, Dr Buckland has discovered that it is the foex of 

 some piscivorous or bone-eating animal, and consequently one 

 of the species in his extensive and new- named family of Kopro- 

 Utes. 



When examining the remains in the Fuveau coal, we were 

 much struck with a kidney-shaped convoluted body, of a deep 

 brown colour, and about one inch in length, which occurs in 

 the shale alternating with the coal. We were wholly at a loss 

 to know to what kingdom of nature we might assign this .sin- 

 gular fossil, until our friend Dr Buckland solved the wonder, 

 having arranged it in his family of KoproUtes under the de- 

 signation of Fusciim Grcecum -f-. 



Observations upon a Collection of Fossil Insects discovered near Aix in 

 Provence, in the summer of 1828, by R. J. Murchison, Esq. and 

 Charles Lyell Esq., Jun. By John Curtis, F. L. S. 



In the examination of this curious and interesting collection 

 one of the most striking facts that presents itself is, that the in- 

 sects are all of European forms, most of them belonging, I be- 

 lieve, to existing genera. The greater proportion of those 

 ^hich have been submitted to my investigation are Dipter a and 



" See a memoir by Messrs Lyell and Murchison, read before the Geolo- 

 gical Society of London, and now in progress of publication in the Aiinalcs 

 des Sciences Naturelles, Paris. 



t Dr Buckland will give figures of both these " Koprolilcs" 



