SUPPLEMENT (No. II) 



TO THE 



MONOGRAPH 



ON 



THE FOSSIL REPTILIA 



OF 



THE WEALDEN AND PUEBECK FORMATIONS. 



Order— CEO COmLIA. 

 Genus — Streptospondylus, Von Meyer. 



This name, from the Greek (TTp£«^w, I turn, cnrovSvXog, vertebra, was applied by 

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

 " second 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."! 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 Pun 

 systeme convexe en evant, et I'autre systeme concave.'' I 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.]] 



* 'Osseraens Fossiles,' ed. 8vo, 1836. Explication des PLmclies, p. 78, pi. rc.x.x.tviii, figs. 5, 6 et 7. 



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



t II)., p. 308. 



§ Substqiiently named Steneosmirns rostro-minor, hy Gcoffroy St. Hilaire. 



]| Steiico>aurHS rostro-major, lb. 



[Page 20, Supplement II.] 



