Sept., 1924 
The Queensland Naturalist. 
9 S 
will repay further .study. It is hoped that opportunities 
will oeeiir later for more systematic collecting of the land 
vertebrates. Although bandicoots are said to occur, none 
have yet been obtained, and it is probable that any of the 
larger marsu])ials that Avere isolated on the island in the 
oast were exterminated by Aborigines. 
0 — 
NOTES ON A RABE ATHERINE (Rhadinocentrus 
Ornatus) FOUND UPON MORETON ISLAND. 
By Mrs. C. A. Messmer. 
KnoAving- that the little known Rhadinocentrus ornatus 
Avas discovered on Moreton Island in 1914 and then lost 
sight of, I Avas pleased to have the opportunity of hunting 
him u]> again, offered by the C’lulBs Easter camp out, if 
he Avere still to be found there. 
I found them in large numbers not only in the i)ond 
originally mentioned, but also in many clear, swiftly- 
running streams draining out of the SAvamps in the 
vicinity of CoAvan ('owan lighthouse. I took them all 
from that part of the str(*am which adjoins the brackish 
Avaters draijiing out across the beach, but Avhich is still 
fresh. This fish. Avhieh so far has ])roA^ed to b(‘ confined 
to iMoreton Islajid alone, was discOAU‘red in 1914, Avhen 
the six type specimens were accidentally eo 7 ne upon by 
the late Mr. Ogilby amongst other tisli sent up l)y Mr. 
Palmer of the signal station. 
Three went into the Queensland Museum and Ihe 
others to London, Avhere they Avere descr'bed by Tale 
Regan. The <]eseri])tion refers only to the dimensh)ns. 
and notliing wliatever is known of its life history or 
habits, as a com]>lete gap exists betAveen its original dis- 
covery and my finding it again at Easter, and until when 
no live specinum had been seen by naturalists. 
Being an extremely nervous and delicate fish 1 only 
succeeded in getting nine home alive out of forty s])eei- 
mens tak(‘n. They, IiOAvever, eontinue to thrive in the 
aquarium, and one cannot help noticing their remarkable 
rate of groAA'th, Avbich has been quite | inch in tAVo months, 
Avhieh rate is innch greater than tliat of the young of 
Melotaemia nigrans, the mainland Atherine, in any of 
my tanks under similar conditions. 
Xo adult specimens came to my net, the largest being 
then about 1} inches long. The* fully matured fish is 
3 or 4 inches long. The description gh^en by C. Tate- 
