Dr. J. E. Gray on the Species of Crocodiles. 269 



* Toes webbed. Legs distinctly fringed. Asiatic Crocodiles. 

 2. BoMBIFRONS. 



The premaxillary suture straight, or rather convex forwards. 

 The face oblong; forehead with nodules in front of the orbits. 

 The cervical disk formed of six shields. Nuchal plates four, in 

 a curved line. Dorsal shields oblong, rather elongate, all keeled, 

 in six longitudinal series, and with two short lateral series of 

 keeled scales. The legs fringed with a series of triangular 

 elongated scales. Toes webbed. 



1. Bombifrons trigonops. 



Crocodilus bombifrons, Gray, Cat. B.M. 59, 1844 (adult). 

 C. biporcatus, Cautley, Asiat. Research, xix. t. 3. f. 1 & 3 (not Cuvier). 

 C. trigonops, Gray, Cat. B.M. 62, 1844 (young). 

 C. palustris, Gray, Cat. B.M. (young). 

 C. palustris (part.), Dura. & Bib. Erp. Gen. ii. 

 C. biporcatus raninus, Miiller & Schlegel, Verhand. t. 3. f. 7?2 

 C. marginatus, Falconer, Ann. & Mag. Nat. Hist. 1846, xviii. 361, t. 7 

 (skull). 



The intermaxillary short, nearly semicircular. 



Hub. India, Ganges (Dr. Sayer) ; Madras (Jerdon) ; Ceylon 

 (Kelaart) . 



The smallest specimen in the British Museum is 19 inches, 

 and the largest nearly 10 feet long ; but we have skulls showing 

 that it grows to a much larger size. 



There may be two species included in the above, as in one 

 of the heads (that from Ceylon) the intermaxillaries appear to be 

 longer and narrower than in the others. I have not sufficient 

 materials to satisfy myself as to the distinction of this species 

 and the permanence of the forms. 



This species has been generally confounded with Oopholis 

 biporcatus and C. jialustris. 



The face of the younger specimen is rugulose and depressed, 

 with a deep pit on the sides over the eighth and ninth teeth ; 

 there are two arched ridges on each side behind the nostril, 

 and some rugosities in front of the orbits. In the older skull 

 the face is very convex and rounded, rugose, with some more or 

 less distinct rugosities in front of the orbits, but not the distinct 

 longitudinal ridge so characteristic of Oopholis porosus. 



2. Bombifrons Siamensis. 



Crocodilus Siamensis, Schn. Arnph. 157; Gray, Syn. 60, & Cat. B.M. 63 



(monstrosity). 

 C. galeatus, Cuvier, Oss. Foss. v. 52, t. 1. f. 1 ; Dum. & Bib. Erp. Gen. u. 



113 (monstrosity). 

 C. palustris, Lesson, Belanger, Voy. 305 ? 



