ARVICOLA AMPHIBIA. 



201 



RODENTIA. 



CASTORIDM. 



Fig. 76. 



Fossil. Kent's Hole. 



ARVICOLA AMPHIBIA. Water Vole. 



Water-rat, 



Campagnol des cavernes, 



Arvicola amphibia, 



BUCKLAND, Reliquiae Diluvianse, p. 18, pi. 11, 12. 

 CUVIER, Ossem. Fossils, torn. v. pi. 1, p. 54. 

 OWEN, Report of British Association for 1842. 



MR. OKES, in his interesting Paper on the Fossil Beaver 

 of Cambridgeshire, contrasts the recent nature of its matrix 

 with the more ancient subjacent diluvial clay, in which 

 remains of the Mammoth or extinct Elephant had been 

 found; and he recurs to the authority of Cuvier, who, 

 among the several general laws which he has laboured to 

 establish, concerning the relations of organized remains, 

 and the strata which contain them, has arrived at the fol- 

 lowing important conclusions : " that the bones of species 

 which are apparently the same with those that still exist 

 alive, are never found except in the very latest alluvial 

 deposits, or those which are either formed on the sides of 

 rivers, or in the bottoms of ancient lakes or marshes now 

 dried up, or in the substance of beds of peat, or in the 

 fissures and caverns of certain rocks, or at small depths 



