500 Transactions.—Z oology. 
Dr. Hobson, of Tasmania, has given an admirable deseription of C. 
australis, which he dissected and described in 1840 (Tasmanian Journal of 
Natural Science, Vol. I.) This species is near to C. antarcticus in the size 
of its pectorals, ete., but widely different in the shape of its tail. Its length 
is said to be 2 feet 6 inches. His whole paper is replete with valuable and 
interesting information relative to the viscera, and other organs and parts 
of this peculiar fish. One short sentence only can I guote:—“ The inferior 
extremity is especially interesting from its quadruped-like form; here is, in 
reality, the pelvis of the fish.” I quote this the more willingly in hopes 
that some of our young anatomists (to whom that circumstance quoted may 
be unknown), may also be led to dissect and describe other species of this 
curious genus; seeing, too, that they are not uncommon here on our shores 
during the summer, 
——— 
DESCRIPTION OF PLATE XVII. 
1. Callorhynchus dasycaudatus, Col. 
2. Callorhynchus antarctieus, Cuv. (tail only). 
8. Callorhynchus australis, Hobson (tail only). 
(N.B.—The figures are drawn to one scale). 
Art. XXIX.—Notes on the Metamorphosis of one of our largest Moths— 
Dasypodia selenophora. By W. Corrwso. 
[Read before the Hawke Bay Philosophical Institute, 10th June, 1878.) 
Ox the 21st January, 1878, my attention was called to an unusually large : 
caterpillar, apparently asleep on the trunk of an Acacia tree (silver wattle). 
At first sight, it seemed so much like the bark of the tree in hue, that it 
was not readily distinguished from it. 'The larva was stretched out to 
its full length, nearly 3’ 6’; it was elongate, and of the ordinary form, 
pretty evenly cylindrical throughout, though thickest in the middle and 
tapering towards its head and tail, and skin smooth. In colour, it was 
peculiarly mottled or finely speckled (irrorated) with very minute points 
of black, red (carmine), and ash eolours—the latter predominating—which, 
combined, and at a little distance gave it the colour of the reddish-grey 
bark of the tree above-mentioned. It had two minute bright red (carmine) 
spots close together on its back, near the tail, and when in motion two 
large triangular dark splashes were displayed on its back ; the colour of the 
belly of the larva was pale (dull white), with several Void olive spots in 
pairs, corresponding to its belly feet. Its head was small, of a pale Indian- 
“exes otour; ; its hind feet were doe and it had also two broad anal feet, 
