TELE0SAUE1DJE. 



105 



Genus PELAGOSAURUS, Bronn 1 . 



Syn. Engyommasaurus, Kaup 2 , 

 Mosellosaurus, Monard 3 . 



Cranium more or less elongated and narrow, with the teeth nume- 

 rous, frequently widely separated, comparatively slender, grooved, 

 and implanted nearly vertically ; premaxilhe short and slightly ex- 

 panded ; orbits regular, and placed more or less laterally ; supra- 

 temporal fossae moderately large and subovate ; postorbital bar in- 

 clined obliquely backwards, so that the posterior border of the orbit 

 is placed nearly on the same line as the anterior border of the 

 supratemporal fossa ; infraorbital bar very shallow ; upper temporal 

 arcade sculptured; posterior nares narrow and pear-shaped, with 

 their anterior extremity extending between the palatines ; palato- 

 pterygoid vacuities large. 



Fig. 15. 





Pelagosaurus typus. — Lateral view of skull and upper and lower views of cra- 

 nium ; from the Upper Lias. E, eustachian aperture ; N, posterior nares ; 

 0, orbit ; P, palatine vacuity ; T, supratemporal fossa ; V, basioccipital. \. 



1 In Bronn and Kaup's ' Gavialartigen Reptilien,' p. 28 (1841). 



2 Quoted in Neues Jahrb. 1835, p. 623. This name has the priority. 

 8 Ann. Soc. R. Sci. Orleans, vol. ix. p. 1 (1847). 



