482 PROCEEDINGS OF SECTION D. 
The Hare, which is well established here, and, with the fox, bids fair 
to be a nuisance in some parts. Both the fox and rabbit were introduced 
by private enterprise. 
The Ostrich, which has proved itself well suited to the plains of the 
lower Murray ; but the enterprise has not proved profitable, owing to 
the uncertain market for the feathers. 
The Pheasant, Partridge and Californian Quail throve well at first, but 
seem now to have succumbed to their many enemies. 
The Thrush has been established here, but not as yet in large numbers. 
The Blackbird has not as yet been established, but another effort is 
now being made at the Zoological Gardens. 
The Skylark, too, has not met with suitable conditions here, and is now 
almost extinct. 
The Starling and the Indian Minah have been very successfully intro- 
duced, and are to be found in great numbers. 
The Robin, Goldfinch, Linnet and many other small birds have also 
failed to get a footing here. 
Amongst fish, the ZTvout has been a success, and the Salmon has 
failed. 
4._ON THE DEVELOPMENT OF CAH/LOBRANCAUS 
RUFUS (TELEOSTEL SYMBRANCHIDZ:). 
By Witiiam A. Hasweti, M.A., D.Sc., Professor of Biology, 
University of Sydney. 
Chilobranchus rufus is a small eel-shaped fish, very abundant 
below stones between tidal limits in Port Jackson. The family 
(Symbranchide) to which it is referred includes only the two 
genera Symbranchus and Chilobranchus, and is regarded as most 
nearly related to the Wurenide. With regard to the structure 
and affinities of the genus I shall have something to say in a 
later paper dealing with the more advanced stages in the 
development. 
Chilobranchus rufus deposits its eggs on the under surfaces of 
stones between low and high water mark, occasionally, though 
not frequently, on the upper surface of small stones or shells 
lying under the shelter of a larger stone. In such shelters, in the 
breeding season, which extends over July, August, and September, 
male and female (which differ very strikingly in coloration and 
markings) are to be found together, and near them will usually 
be found a batch of eggs. The eggs are cemented to the surface 
of the stone in a single layer, and in one batch there will often be 
found from fifty to a hundred, presenting a variety of stages in 
their development, showing that they had been laid and impreg- 
nated at different times. Each egg is cemented to the stone bya 
little disc, formed apparently by a drop of a viscid material, 
against which the egg is pressed, and which becomes firmly 
united with the egg-membrane which it resembles in 
character. 
