SUPPLEMENT (No. II) 



TO THE 



MONOGRAPH 



ON 



THE FOSSIL REPTILIA 



or 



THE WEALDEN FORMATIONS 



Order— CROCODILIA. 



Genus — Streptospondylus, Von Meyer. 



This name, from the Greek arpicpw, I turn, airovdvXog, vertebra, was applied by 

 M. Hermann v. Meyer to the Crocodilian reptile distinguished by Cuvier as the 

 " seconde espece de Crocodile de Honfleur,"* and characterised by the same great 

 anatomist as " having the cervical and anterior dorsal vertebrae, with the articular 

 ends of the centrum, convex in front and concave behind. "f By this character was 

 distinguished the " second Gavial of Honfleur" from a '' first Gavial of Honfleur," 

 in which the articular ends of the centrum were both slightly concave. 



With regard to these kinds of fossil vertebrae Cuvier writes : "je nommerai I'un 

 systeme convexe en avant, et I'autre sj/steme concave."]. To the former he referred a 

 gavial-like skull, with a shorter and more obtuse upper jaw, and a less depressed 

 symphysis of the lower jaw; § to the latter a more gavial-like skull, with longer and 

 more slender jaws. || 



* ' Ossemens Fossiles,' ed. 8vo, 1836. Explicatiou des Planches, p. 78, pi. ccxxxviii, figs. 5, 6 et 7. 

 t lb., t. ix, p. 309. 



I lb., p. 308. 



§ Subaequently named Steneosaurus rostro-minor, by Geoffroy St. Hilaire. 



II Steneosaurus rostro-major, ib. 



