G'day!

Welcome to the site!

I lived in Australia (Sydney) for a number of years and spent more time fishing than just about anything else. There are a few fish species that are found in both the US and the Australian east coast, and then there are a lot that are not. Here are some of the ones that I can remember (including the ones you listed).

Australian Name - US Equivalent
Mulloway - very similar to white seabass
Yelllowtail kingfish - California yellowtail
Bonito - Bonito
Yellowfin tuna - yellowfin tuna (you can catch these at "The Peak" off Sydney)
Mackerel tuna - False albacore
Striped tuna - Skipjack
Tailor/Chopper - bluefish
Blue pointer shark - mako shark
rockcod - grouper (the US rock cod are in a different family, the scorpionfishes)
bream (black, yellowfin, silver) - grunts and/or porgies
mullet - mullet (there are more species of mullet in Australia, all make good live or cut bait)
Groper - wrasse
Flathead (dusky, sand, tiger) - no equivalent...but the americans can imagine a fish that looks like a northern pike that's had it's head flattened...same bad attitude, similar set of teeth.
Striped sea pike, Snook - barracuda of various types
Trevally (various species) - Jacks
Perch/Sea perch - Snappers (various species)
black kingfish - cobia
Luderick + Rock Blackfish - opaleye (same family, different species)
Slimy mackerel - Pacific mackerel
yellowtail- Pacific Jack Mackerel (same family, different species)
leatherjacket (various species) - triggerfish (same family, but different species)
whiting (various species) - no US equivalent

Hope this helps! A good book to get a hold of (if it's still in print) is Grants Guide to Fishes by E.M. Grant.