586 Researches in Fossil Zoology. 



which had two ridges ; as also the second, third, fifth, and 

 seventh grinders, all with three indentations [Reihig]. The 

 deciduous tooth in the upper jaw has not been deeply in- 

 dented, neither much curved, and only its exterior covered 

 with enamel. Some cutting teeth of the lower jaw have also 

 been found. In the pit coal of Elgg Rhinoceros incisivus is not 

 rare ; I examined some remains of different individuals, under 

 which were a quantity of skull-fragments with rows of grind- 

 ers. The assertion of Cuvier as to the appearance of the 

 Rhinoceros tichorhinus is amply refuted by this, as neither at 

 Elgg, nor in any other formation of pit coal, have I ever found 

 any remains of that animal, which belongs to the diluvium. 



From Elgg is further taken a peculiar animal resembling a 

 pig, from which I have seen the teeth belonging to the upper 

 jaw. This animal must have been the size of my Hyotheri- 

 um, but is otherwise different from it. Half of the lower jaw 

 of a rodent belonging to the Palicomyx was also found. — 

 This must have been but half the size of the species buried 

 at Knapfden ; I have consequently named it Chalicomus mi- 

 nutus. I likewise found one in shape the type of the testu- 

 do-formed turtle, half of the back of the mailed belly turtle. 



Near Aaran, and even under the houses of this town, fossil 

 bones have been discovered in the molasse ; these are in the 

 collection of the late M. Rengger, a geologist there. The re- 

 mains of two ruminating animals exist, one of them belongs 

 to Palocomyx, the other is similar in the structure of the teeth 

 to the living ruminating animals. By some other teeth we 

 might suppose there must have existed a larger pachyderm, 

 but these fragments are very imperfect. The most interest- 

 ing to me was the lower jaw of a small mammiferous ani- 

 mal, which might be placed, with respect to the structure of 

 its teeth, between the ruminating and pachydermatous ani- 

 mals, and I have named it Microtherium Rengen. 



Turtles seem to be numerous in this molasse : I examined 

 from it fragments of the mailed back turtle, of a Tryonyx, and 

 other fragments from the back of the mailed belly one, of the 

 type of the Emys constructed turtle, which I call Emys Heis- 

 cheri. I have not determined in what class I shall place the 

 other. 



In the collection of Berne are fossil bones from the molasse 

 of the different cantons of Switzerland ; to those from Rap- 

 penflich and Maggerwyl particular attention should be given. 

 From the molasse of Rappenflich near Aaberg I examined 

 the same remains of turtles with which M. Bourdet was for- 

 merly long occupied ; and from the same deposit were taken 

 bones of a ruminating animal, and the tooth of another, sup- 



