APPENDIX. 503 



GONIONOTUS PLUMBEUS. 



Plate 4. 



Bluish-grey, belly and beneath white. Length of body 9, 

 of tail 4, = 13 inches. 



Inhab. ■ 



This animal is at once known from all the other Homalopsina, 

 by the three keels on the back, by having only a single series of 

 plates beneath, and in the lower labial shields being pitted. 



Fani. Crocodilid^e. 



The MuGGAR or Goa. 

 Crocodilus palustris. Lesson Belanger, Vog. 305. Gray Cat, 

 Rept. Brit. Mus. 62. C. Vulgaris, Dum. and Bibr. Erp. 

 Gen. n. 108. C. biporcatus, Cuv. Oss. Foss. t. v. pi. 1, f. 4. 

 Skull. C. biporcatus raninus, Muller. 



luhab. Victoiia River. 



Captain Stokes has furnished me with the following note on this 

 species. 



*' Length of Alligator .... 

 From base of head to extremity of nose 

 Across the base of head 

 Length of lower jaw 

 " Teeth in both jaws vary in size, and are variously disposed, 

 as will be seen in the sketch. 



In upper jaw on each side of maxillary bone .18 2 incisors. 

 Li lower jaw. do. do. do. .15 2 „ 



"The largest teeth are 1^ inch in length. The two lower in- 

 cisors are stronger and longer than the upper, and project through 

 two holes in front part ^ upper jaw. Breadth across the animal 

 from extreme of one fore foot, across the shoulders, to the other 

 side, 5 feet 2 inches. The fore feet have each five perfect toes, 

 the three inner or first, have long horny nails, sUghtly curved, 

 the two outer toes have no nails, nor are they webbed. The 

 third and fourth toes are deeply webbed, allowing a wide space 



