TELEOSAURID^. 93 



form (with which it was originally identified by its describer 1 ), and 

 both D. lissocephalus and D. primceuus are in all probability also 

 identical. 



Hah. Europe. 



40103. The cranium, imperfect posteriorly ; from the Kimeridge 

 {Fig.) Clay of Kimeridge Bay, Dorsetshire. The type specimen 

 of Steneosaurus manseli ; figured by Hulke in the ' Quart. 

 Journ. Geol. Soc' vol. xxvi. pi. ix., the extremity of the 

 premaxilhe being also figured in vol. xxv. pi. vii. figs. 1-3. 

 From a comparison with the figures of Metriorhynchus given 

 by Deslongchamps, the writer feels assured that the bones 

 marked a in the former figure are the nasals, while those 

 marked b appear to be portions of the maxillae and pre- 

 maxillse marked otf by a ridge for muscular attachment. 

 Figures of two teeth and diagrams of the palatal and 

 upper surfaces are also given by Owen in his ' British 

 Fossil Reptilia,' — Crocodilia, pi. xx., a reduced figure of the 

 diagram of the frontal aspect being also given in the 

 ' Quart. Journ. Geol. Soc/ vol. xl. p. 158, fig. 2 (as Plesio- 

 suchus). In these figures Hulke's view of the homology 

 and arrangement of the bones on the frontal surface is 

 followed, but the orbits are represented as directed front- 

 ally in place of laterally. 



Presented by J. C. Mansel-Pleydell, Esq., 1866. 



40103 a. The greater part of the right ramus of the mandible, 



{Fig.) together with portions of a rib and a femur, doubtless 



belonging to the same individual as the preceding ; from 



Kimeridge. Figured by Hulke, op. cit. vol. xxv. pi. xvii. 



fig. 4. Same history. 



40103 b. A mass of matrix exhibiting the haemal aspect of three 

 entire cervical vertebrae with their ribs ; associated with 

 the cranium. Same history. 



1 Subsequently referred to a distinct species on account of the presumed 

 identity of Dacosaurus maximus with Cuvier's ' Gavial a museau plus court ' ; 

 the latter having been shown to be made up of fragments of more than one 

 species and genus, some of which belong to the Oxfordian Metriorhynchus 

 superciliosus (page 96), while others are Kimeridgian, this identification falls 

 to the ground. In describing the species, Hulke employs the term Steneosaurus 

 in the sense in which Metriorhynchus is used by Deslongchamps, who is 

 followed here. 



