$. III. DIST. CHAR. Prototype. 79 



found fossil. The serpentes have not been disco- 

 vered either in the petrified or conservated state. 



Among the fossil amphibia are to be enumerated 

 the remains of the tortoise (Testudo) found near 

 Maestricht/and elsewhere ; the petrifactions of frogs 

 ( Ranee ) said to have been discovered in the swine- 

 stone of Oening, amdtlielizards (Lacertce) of thebi- 

 tuminous-marlite of Mansfeld. The supposed cro- 

 codile found near Whitby (Yorkshire) appears to 

 have been the skeleton of a Baltfna.( v. Camper. Phil. 

 Trans.R.S. Vol. LXXVI. P. 1. p. 145.) And the 

 other instances,, in which that animal is stated to 

 have been found petrified, are very questionable. f 



d. 55. FISH (Pisces} are animals which breathe 

 by the means of gills their heart is furnished with 

 one ventricle and one auricle. ( v. Syst. Nat. ed. 

 Gmel. p. 1126.) 



Obs. The fossil remains of the animals of this 

 class are numerous each of its orders,"\\ and many 

 of the genera fff in each order , affording subjects 

 for the mineral kingdom many of these are known 



t The crocodile, said by Whifcehurst to be discovered in Derby- 

 shire, was nothing more, we have every reason to suppose, than a 

 particularly large species of orthoceratites. (v. Derby. Petr. pl.39,) 



ft Which are six according to Gmelin Apodes, Jugulares, 

 Thoracici, Abdominales, Branchiostegi, and Chondropterygii. 

 The last two form the Amphibia Nantes in the 12th. Ed. of the 

 Sys. Naturee. 



ttt For the genera offish furnishing reliquia, v. Syst. Arrange- 

 ment, P. 2. 



