32 



jaw and the restriction of the teeth to that part of the dentary 

 bone, but differing in the relatively greater length of the 

 ramus, in the more regular tapering of the head, and in the 

 absence of the oval hole in the outer surface of all known living 

 Crocodiles. The teeth he describes as being conical and striated, 

 having deux aretes tranchantes an unvarying character of the 

 Steneosaurus family. 



This is not the first Steneosaur which this county has pro- 

 duced. One was exhumed from the Kimmeridge clays at Kim- 

 meridge, which is described by Mr. Hulke in the Geological 

 Journal, vol. xxv., p. 290, and xxvi., p. 167. It differs widely 

 from the Cornbrash fossil, its snout being stouter than even 

 Cuvier's tete d museau plus court. The proportions of the skull 

 differ as well as in the number and distribution of the teeth, 

 which are not more than fifteen on each side. From the same 

 locality and formation I obtained, in the year 1870, a portion of 

 the snout of a Teleosaurus proper ; it is seventeen inches long, and 

 represents a very long and slender snout, tapering gradually to 

 behind the external nostril, where the premaxillce suddenly and 

 largely expand. Each maxilla has a series of twenty-five 

 alveoli in the space of 15-5 inches, and each premaxilla five. 

 The presence of these Crocodilian reptiles with remains of other 

 reptiles and shells which are decidedly marine, leads to the 

 conclusion that the clays in which they are entombed was de- 

 posited in the neighbourhood of dry land. 



