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The ATHERINID® seem to be abundant about the river 
mouths in all parts of Australia, but only a small number have 
been described, and these, with the exception of the genus 
Nematocentris, present no remarkable features. 
The Moatrrpm number about 25 species; they are to be 
seen sometimes in enormous shoals, and are inhabitants of the 
coasts, estuaries, and rivers. The species differ on different 
parts of the Coast, but they are everywhere fishes of the finest 
quality, and might be converted into a most valuable article of 
export. The genera are Mugil, Agonostoma, and Myzcus, the 
last two solely Australian. 
The curious Gasterosteiform fishes, the FisruLARIDm®, are 
represented by one Fistularia and one Aulostoma; the CEN- 
TRISCcIDH by two species of Centriscus and two of Amphisile. 
The GoxrosctD® possess two genera in Australia, the Tas- 
manian genus Crepidogaster, of which there are two species, 
and one species of Gobicsox. 
The OpHrocEPHALID® are represented by one species only— 
O. striatus, Bl. The Tracuypreripm® are seldom seen. 
Regalecus gladius i is said to have been caught on the Tasmanian 
Coast. Regalecus Jacksonensis has been described by Ramsay 
from Port Jackson from one speciinen, and a specimen of 
Trachypter us Alivelis Kner has been lately taken on the East 
Coast of Tasmania. One species of the Noracanrut, Nota- 
canthus sexspinis, has been taken in King George’s Sound. 
The PomacnNTRIDas are numerous in the warm latitudes 
of North Australia. Parma and Giliphydodon are the only 
genera found in the temper eae regions. 
The Laspripa must number quite 100 species in Australia. 
The genera are for the most part identical with those of the 
Indian Seas. There are 17 genera in all. The most numerous 
in species of those inhabiting tropical seas are Cherops and 
Pseudoscarus. The most populous genus of the Southern 
Coasts is Labrichthys, which numbers nearly 40 species. A 
very extraordinary genns— Siphonognathus—perhaps the most 
marvellous looking fish in existence, is placed by Gunther in 
this family, and in the group Opacina_ It is found on the 
South Australian Coast. 
The next Order of Fishes—the ANACANTHINI—are not 
largely represented in Australia, but an Australian character is 
distinet throughout. The Gapopsipm constitute a strictly 
Australian family, having only one genus and one species. It 
seems to form a link between the Acanthopteryginous fishes 
and the Gadide. It is found in most of the rivers of New 
South Wales, Victoria, Tasmania, and South Australia. 
The Lycopipm are represented by a single species of a 
single Australian genus, found in Northern Queensland. The 
Gapip#, which oceupy such a prominent position in other 
