CROCODILID.E. 59 



R. 1059. A slightly imperfect late dorsal or early lumbar vertebra. 



Presented by R. LydelcJcer, Esq., 1887. 



Group b. — Cranium moderately broad and short, with mandibidar 

 symphysis in proportion ; palatal aspect of premaccillce elongated, 

 with its posterior border projecting into maxillae ; teeth strongly 

 differentiated, usually about - ? . 



This group includes the majority of existing species. 



CrocotttluS poroSuS, Schneider 1 . 

 Syn. Crocodilus biporcatus, Cuvier 2 . 



Facial sculpture slight ; an elongated longitudinal sinuous ridge 

 in advance of orbit ; interorbital bar wide and slightly concave ; 

 premaxillary fissure a comparatively narrow slit. 



Hob. India, N. Australia (Kecent), and Queensland (Pleistocene). 



43047. Part of the right maxilla, showing the split alveoli of the 

 first five teeth; from the Pleistocene of Clifton Plains, 

 Darling Downs, Queensland. 



Presented by Prof. Harkness, 1871. 



43047 a. The right premaxilla and anterior extremity of the right 

 dentary of a smaller individual ; from Clifton. 



Same history. 



43213. Two imperfect teeth ; from the Pleistocene of Queensland. 



Presented by Sir R. Daintree, 1871. 



43343. The crown of a tooth ; from the Pleistocene of Gowrie, 

 Queensland. Presented by Dr. George Bennett, 1872. 



36079. Three imperfect dermal scutes ; from the Pleistocene of the 

 lower part of the Condamine Eiver, Queensland. 



Presented by T. H. Hood, Esq., 1861. 



43221. Four associated caudal vertebrae ; from Queensland. 



Presented by Sir R. Daintree, 1871. 



Group c. — Cranium somewhat elongated and narrow ; mandibular 

 symphysis long ; palatal aspect of premaxillce elongated, with 

 its posterior border projecting into maxillw ; differentiation of 

 teeth slight. 



The existing African C. cataphractus and N.-American C. inter- 

 medin belong to this group. 



1 Hist. Amphib. pt. ii. p. 159 (1801). 



2 0ssemen8 Fossiles, 2nd ed. vol. v. pt. ii. p. 65(1824). 



