CATALOGUE OF SHIELD REPTILES. 



fine adult skull of that species, sent by the Leyden Mu- 

 seum from Java. 



The observations of MM. Dumeril and Bibron (Erp. Gen. 

 pp. 25, 47), that Crocodiles are not found in Australia, and 

 that the American Crocodiles are confined to the islands of 

 that continent, are no longer consistent with facts ; indeed, 

 long before the publication of their work, various travellers 

 had recorded the occurrence of Crocodiles on the north 

 coast of Australia. 



The estuarine Oopholis porosus was observed by Governor 

 Grey on the north-west coast of Australia. There is in the 

 British Museum a skull of the species sent thence, and 

 also a full-grown specimen killed and preserved in that 

 country. 



The island of Borneo is inhabited by a false Garial 

 named Tomistoma Schlegelii. I am not aware that it has 

 been found in any other island of the archipelago. It is 

 intermediate in character between the true Garial and the 

 Crocodiles. 



The Crocodiles and Alligators are widely distributed in 

 America. There are four American Crocodiles, and nine 

 Alligators. One of the Crocodiles (Palinia rhombifer) is 

 peculiar to the island of Cuba ; the other species of Cro- 

 codiles and the Alligators are found on the mainland. The 

 Alligator mississipensis is found far north, where the waters 

 are often frozen ; all the other Alligators and American 

 Crocodiles are confined to the tropical and subtropical parts 

 of the continent. Molinia americana is found in Cuba and 

 St. Domingo, as well as in the rivers of the east and west 

 side of the continent, showing the incorrectness of the 

 assertion of MM. Dumeril and Bibron that the Crocodiles 

 of America are confined to the islands of that continent 

 (Erp. Gen. pp. 25, 47). 



Fam. I. GAVIALID.E. 



The cervical and dorsal plates formed into a single con- 

 tinuous shield. Teeth nearly of uniform size, all fitting 

 into notches on the edge of the upper jaw. The front 

 large teeth fitting into a notch in the front, the canines 

 into a notch on the sides of the front of the upper jaw. 

 The jaws elongate, slender. 



Croeodilidae (part.), Gray, Ann. Philos. x. p. 195, 1825. 

 Croeodilidae § *, Gray, Cat. Tort, and Crocod. B. M. p. 36. 

 Gavialidas, Huxley, Journ. I'roc. Linn. Soc. Zool. iv. p. 1G, 

 1859. 



Synopsis of the Genera . 



1. Gavialis. Beak elongate, linear, end swollen. The lateral 



teeth oblique, not received into pits. 



2. Tomistoma. Beak conical, thick at the back, the lateral 



teeth erect, received into pits between the teeth. 



1. GAVIALIS. 

 Beak of skull linear, end dilated from the enlarged nos- 

 toils. Teeth ^ or ££. 



The mandibular symphysis extends to the twenty-third 

 or twenty-fourth tooth. Most of the lateral teeth of both 

 jaws are directed obliquely, and not received into inter- 

 dental pits. The front margin of the orbit is much raised. 



Gavial, Oppel. 

 Le Gavial, Cuvier. 

 Gavialis, Merrem. 



Gray, Ann. Phil. x. p. 195, 1825 ; Cat. Tortoises $c. 

 B. M. pp. 30, 57, 1844 ; Trans. Zool. Soc. 1869, vi. 

 p. 132. 



Geoff. Mem. Mus. xii. 



Huxley, Proc. Linn. Soc. Zool. iv. p. 20, 1S59. 

 Gavialia, Fleming, Phil, Zool. 

 Kamphostoma, Wagler, Syst. Amph. p. 441. 

 lthamphognathus, Voyt, Zool. Brief, ii. p. 289. 



1. Gavialis gangeticus. (The Garial or Nakoo.) 



Narrow-beaked Crocodile, Edw. Phil. Trans, iiix. p. 639, 



t. 19. 

 Le Gavial, Lacep. Q. 0. p. 1235, t. 15. 



Faujas, Mont. S. P. p. 235, t. 8. f. 46, 47. 

 Lacerta gangetica, Gmelin, S. N. i. p. 1057. 



Shaw, Zool. iii. p. 197, t. 60. 

 Crocodilus longirostris, Schneid. Amph. p. 160. 



Daudin, Bept. p. 4293. 



Blainv. Osteoq. Croc. t. 2. f. 4, t. 3. f. 6, t. 4. f. c, t. 5. f. 5. 

 Crocodilus aretirostris, Baud. Bept. ii. p. 393. 

 Crocodilus tenuirostris, Cuvier, Ana. Mus. x. t. 1. 



Tiedem. Amph. t. 15. 



Wagler, Syst. t. 7. f. 111. 



Merrem, Tent. p. 38. 

 Gavialis gangeticus, Geoff. Mem. Mus. xii. 



Gray, Syn. Rept. p. 36 ; Cat. Tort. $c. B. M. p. 57 ; 

 Trans. Zool, Soc. 1869, vi. p. 132. 



Bum,. 4- Bib. Erp. Gen. iii. p. 135, t. 26. f. 2. 



Huxley, Journ. Proc. Linn. Soc. Zool, iv. p. 20, 1859. 



Bruhl, Slcelet. Krolcod. t. 8, 9, 10, 11, 17. 



Strauch, Syn. Crocod, p. 63. 

 Crocodilus gangeticus, Tied. Oppel, and Libosch., Naturg. 

 A,„ph. p. 81, t. 14. 



Geoff. Mem. Mux. H. N. xii. p. 118. 



Burm. Gavial, t. 4 (skulls). 

 Gavialis longirostris, Merrem, Amph. p. 37. 

 Gavialis tenuirostris, Merrem, Amph. p. 38. 



tin, rin. Icon. R. Anim. t. 2. f. 3. 

 Kamphostoma tenuirostre, Wagler, Nat. Syst. Amph. p. 141. 



t. 8. f. 3. 

 Le Gavial, Lacep. H. N. Q. Ovip. i. p. 235, t. 15. 



