CATALOG! E OF SHTKT.T) EEPTILES. 



g • psisoi mi Qbni u. 

 S,v .1/ disk rhombic, separated from the dortal MM 



Normal Crocodiles. 



\ Xnr/i,il seiitella N ,ite-rloiit/ute, in four 



or six longitudinal scries. Estuarine Crocodiles. 

 I. Oopholin. Asia mid North A ustrulin. 

 lv Xueha! platm four, in 11 transverse MTM*. Dottal platen ax 



■road m /<>m/, si/uare. Fluviatile Crocodiles. 



■\ In'ernin.rilliiri/ Imiic truneatetl behind, with a Marly straight 

 hinder edge. l\u e broad, oblong. 



1. Bombifroiu. Toes webbed. Legs distinctly fringed, Asia. 

 3. Paliniu. Toes short, free. Legs with only BO indistinct 

 binge. America. 



l> Intertmuilliari/ bone elongate, produced and truncated behind ; 



sutures doping backwards and converging, then tranwi rse or 

 sinuous. Toes webbed Legs fringed. 



•». Crocodiius. Face oblong, without any ridge from front of 

 orbit : forehead Hat. Africa. 



5. Mohnia. Face elongate, forehead convex, smooth, without 



ridge from orbit. America. 



- tion II. Cervical disk strongly keeled on each side and nearly 

 continuous icith the dorsal shield. Aberrant Crocodiles. 



• Rim broad, nasal bones produced into the nostrils, Alliga- 

 toroid Crocodiles. 



6. Halcrosia. Africa. 



** Face very long, slender, natal bones not reaching the nostrils. 

 Gavialoid Crocodiles. 



7. Mecistops. Africa. 



I. Tht nape with a rhombic disk formed of six plates, 

 which is well separated from the dorsal shield. Nor- 

 mal Crocodiles. 



A. Xnchal SCUteJla none. Dorsal scales in four or six lon- 

 gitudinal series ; the outer series ovate-elongate. Toes 

 webbed. Legs fringed. The intermaxillary bone pro- 

 duced, truncated, and converging on the sides. Estua- 

 rine or brackish-water Crocodiles. 



1. 00PH0LIS. 

 Face oblong ; orbits with an elongated, longitudinal, 

 more or less sinuous ridge in front. Nuchal scutella none, 

 or rudimentary. Cervical disk rhombic, of six plates. 

 Dorsal plates uniformly keeled, in four or six longitudinal 

 series ; the vertebral series with straight internal edges, 

 the outer ovate-elongate. Legs acutely fringed. Toes 

 broadly webbed. Intermaxillary bone produced, and trun- 



cated behind, the .sutures sloping backwards and converg- 

 ing, and then transverse or sinuous. 



Oopholis, Gray, Cut. Tort. 4' t'rocod. in B. M. 1844; Ann, 

 \ Mag. Nat, Hist. 3rd series, x. p. 267 ; Trans. Zool. 

 Soc, L869, vi. p. L87. 



a. The dorsal scales in six longitudinal series ; the vertebral 

 ones elongated like the others. 



1. Oopholis porosus. (The Saltwater Crocodile.) 



Crocodiius porosus, Schn. Amph. p. 159. 



Gray, Cat. Tort. $ Crocod. §c. Brit. Mus. p. 58 ; 

 P.Z. S. L861, p. 140. 

 Crocodiius oopholis, Schn. Amph. ii. p. 165. 

 Crocodiius biporcatus, Cuv. Oss. Foss. v. p. 65, t. 1. f. 4, 

 18, lit (young skulls), t. 2. f. 8. 



Mutter Sr Schlegel, Verh. t. 3. f. 6 (middle-aged skull). 

 Owen, Cat. Osteol. Mas. Coll. Surg. p. 159, nos. 719, 



723, 724, 727, 728, 

 Huxley, Journ. Proc. Linn. Soc. Zool. iv. p. 11. 

 Blainv. Osteogr. Crocod. t. 1, t. 3. f. 1, t. 4. f. , t. 52. 

 Burm. Gaeial, t. 2. f. 5 (head). 

 Strauch, Syn. Crocod. p. 52. 

 Crocodiius acutus, Owen , Cat. Ost. M. Coll. Surg. p.157. n.713. 

 Champse tissipes, Waglir, Amph. t. 17. 

 Crocodiius biporcatus raninus, Midler 4' Schlegel, Verh. t. 3. 



f. 7 (aged skull). 

 Oopholis porosus. Gray, Ann. 4' Mag. Nat. Hist. 3rd series, 



x. p. 267, 1862 ; Trans. Zool. Soc. 1869, vi. p. 138. 

 Champses biporcatus and C. oopholis, Merrem, Amph. 

 pp. 36, 37. 



Hal. Asia and Australia; India, Bengal, and Penang 

 (Hardwielce) ; China (Lindsay) ; Trincomalee ; Borneo 

 (Belcher) ; Tenasserim coast (Pack-man) ; Siam, Cambogia 

 (Mouhot). 



Var. australis, Giinther. 



Crocodile, Landesborough, Explor. of Austral, i. p. 70. 



Hab. North Australia (Elsey 4' Kraig). 



Dr. Giiuther has pointed out to me that all the Austra- 

 lian specimens which we have examined have one cross 

 band of shields less than the Indian specimens ; that is 

 to say, they have sixteen, and the Indian specimens seven- 

 teen bands of shields from the neck to the base of the tail. 

 That is the case both' with the small specimen in spirits and 

 the large specimen, 17-i feet long, which was procured by 

 Mr. Kraig. 



In the British Museum there are the skin of an adult from 

 N.E. Australia, another, 13 feet long, received from the 

 Zoological Society, and several (two thirds half -grown) 

 young specimens stuffed, and several young specimens in 

 spirits. 



