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Psittacus ( Platycercus ) purpureoeephalus, new sp ., 1 King 
George’s Sound. 
Psittacus semitorquatus, new sp ., 2 King George’s Sound. 
Reptiles. 
A snake five or six feet long, which from the structure of its 
teeth was a very dangerous species, was killed by M. Guilbert. 
Amongst the lizards we obtained some very large skinks, animals 
whose movements are slow. 
Fish. 
The bad weather and the exigencies of work did not allow of 
our casting the seine-net, the best means of ascertaining varieties of 
fish; but we took a number with hook and line, and the English 
fishermen stationed in this port exchanged them every clay for salted 
butter. The commonest was a large species of bream. Descriptions 
and figures are given of: — 
Plectropoma nigroruhrum , Cuv. & Yal ., 3 King George’s Sound. 
Plectropoma dent ex, Cuv. & Yal ., 4 King George’s Sound. 
Plectropoma serratum , Cuv. & Yal ., 5 King George’s Sound. 
Sillago punctata, Cuv. & Yal ., 6 King George’s Sound. 
Malacanthus radiatus, new sp ., 7 King George’s Sound. 
Molluscs. 
At King George’s Sound in the shallow and rather calm Prin- 
cess Charlotte Harbour, the shore is covered with the shells of three 
or four species of Bulla. Here the animals prefer sandy bottoms. 
Helix melo, of the division Bulimus, covers the summit of Bald 
Head, in company with Suecinea elongatus. King George’s Sound 
and Sharks Bay provided us with a number of species of Yoluta. 
Cerithium leve we only saw at King George’s Sound, living in 
societies in the very sheltered spots among the cracks of the rocks, 
motionless at the bottom of the water; this habit accounts for its 
being covered with Hipponyx. King George’s Sound yielded us 
specimens of Parmophorus of very large size. They are entirely 
black, sluggish in habits and hide under stones in places where there 
is only a little water. We could only obtain one living individual of 
Cryptostoma at King George’s Sound; but we made a plentiful 
collection of its shells in the nests of the terns, which carry this 
mollusc to their young, for which it is a sort of ready-made tit-bit. 
1 Purpureicephalus spurius, Kuhl. (Rod-capped King Parrot). 
3 Barnardius semitorquatus, Q. and G.. (Twenty-eight Parrot). 
3 Hypoplectrodes nigrorubrum, Cuv. and Val. 
4 Colpognathus dentex, Cuv. and Val. 
5 Acanthistius serratus, Cuv. and Val. (Wirrah). 
0 Isosillago punctata, Cuv. and Val. (Spotted Whiting). 
7 Odax radiatus, Q. and G. 
