CONTKIBUTION 
TO THE 
ICHTHYOLOGY OF AUSTRALIA. 
NO. IV. — FISHES OF SOUTH AUSTRALIA. 
I have already mentioned in my last year's publication that 
Mr. Waterhouse, the curator of the South Australian Museum, 
had collected a considerable number of new or rare fishes 
in the St. Vincent's Gulf, and I gave a short notice of them ; 
I will submit here to the public a more complete description 
of those sorts deserving a particular notice, 
VINCENTIA. 
The singular fish I here describe is most difficult to place 
in the system ; it has the general appearance of an Apogon, 
caused by the great development of its anterior part, its 
large eyes, its double dorsal, the obliquity of the cleft of 
its mouth ; but the absence of teeth on the bones of the palate, 
and of spines to the operculum, places it in a different 
family ; this last character would bring it near Cheilodipterus, 
but it has no canines, and the first one near Pomatomus, from 
which it is easily distinguished, by its general high form, its 
two dorsals inserted one very near the other, and the form of 
the opercular bones. 
The general characters can be defined thus : seven 
branchiostegals ; teeth viliform on both jaws ; none on the 
palatine bones ; no canines ; two dorsals placed one near the 
other ; operculum denticulated ; scales large, adherent. 
