Inhabits Victoria River.

Captain Stokes has furnished me with the following note on this species.

“Length in feet inches: 
of Alligator:  15 0. 
From base of head to extremity of nose:  2 2. 
Across the base of head:  2 0. 
Iength of lower jaw:  2 0.

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.

In lower jaw on each side of maxillary bone:  15 2 incisors.

The largest teeth are 1 1/2 inch in length.  The two lower incisors are stronger and longer than the upper, and project through two holes in front part of 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, slightly curved, the two outer toes have no nails, nor are they webbed.  The third and fourth toes are deeply webbed, allowing a wide space between them, which is apparent, even in their passive state.  The hind feet are twice the size and breadth of the fore, with four long toes, the two first are webbed as far as the first joint, and the other are strongly webbed to the apex of last joint; the last or outer toe has no nail.  From the apex of tail, a central highly notched ridge runs up about midway of it, and there splitting into two branches, passes up on each side of the spine over the back, as far up as the shoulders, gradually diminishing in height to the termination.  A central ridge runs down from the nape of the neck, over the spinous processes of the vertebrae (being firmly attached to them by strong ligaments) as far down as the sacrum, diminishing to its termination likewise.”

The eggs are oblong, 3 inches and 3 lines long, and 2 inches 8 lines in diameter.

The skull of this specimen, which was presented to the British Museum by Captain Stokes, has exactly the same form and proportions as that of the crocodiles called Goa and Muggar on the Indian continent, and is quite distinct in the characters from the Egyptian species.

A number of large stones, about the size (the largest) of a man’s fist, were found in the stomach.

Messrs. Dumeril and Bibron deny that any species of crocodile is found in Australia.  See Erpet.  Gen. 1 1836, 45.

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APPENDIX.

DESCRIPTIONS OF NEW OR UNFIGURED SPECIES OF COLEOPTERA FROM AUSTRALIA.

BY ADAM WHITE, M.E.S.  ASSISTANT IN THE ZOOLOGICAL DEPARTMENT, BRITISH MUSEUM.

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Megacephala australasiae, Hope, Proceedings of the Entomological Society, November 1, 1841, Annals and Magazine of Natural History, 9, 425.

STOKES, INSECTS.  PLATE 1, FIGURE 1.

Habitat:  North-West Australia.

Aenigma cyanipenne, Hope; variety with the whole of the thorax punctulated.