Ray-finned fishes finder
| Common name | Scientific name | Family | Order |
|---|---|---|---|
| Rough Bullseye | Pempheris klunzingeri | Pempheridae | Perciformes |
| Rough Leatherjacket | Scobinichthys granulatus | Monacanthidae | Tetraondontiformes |
| Roundbelly Cowfish | Lactoria diaphana | Ostraciidae | Tetraodontiformes |
| Roundface Batfish | Platax teira | Ephippidae | Perciformes |
| Royal Dottyback | Pictichromis paccagnellae | Pseudochromidae | Perciformes |
| Ruby Snapper | Etelis carbunculus | Lutjanidae | |
| Rusty Jobfish | Aphareus rutilans | Lutjanidae | |
| Sabre Squirrelfish | Sargocentron spiniferum | Holocentridae | |
| Saddle Butterflyfish | Chaetodon ephippium | Chaetodontidae | Perciformes |
| Saddled Puffer | Canthigaster valentini | Tetraodontidae | Tetraodontiformes |
| Sailfin Tang | Zebrasoma veliferum | Acanthuridae | Perciformes |
| Sailfish | Istiophorus platypterus | Istiophoridae | Perciformes |
| Salamanderfish | Lepidogalaxias salamandroides | Lepidogalaxiidae | Salmoniformes |
| Samsonfish | Seriola hippos | Carangidae | Perciformes |
| Samurai Squirrelfish | Sargocentron ittodai | Holocentridae | Beryciformes |
| Sand Whiting | Sillago ciliata | Sillaginidae | |
| Sargassum Anglerfish | Histrio histrio | Antennariidae | Lophiiformes |
| Saw-jawed Monocle Bream | Scolopsis ciliatus | Nemipteridae | Perciformes |
| Saw-tooth Moray | Gymnothorax prionodon | Muraenidae | Anguilliformes |
| Sawtooth Pipefish | Maroubra perserrata | Syngnathidae | Gasterostieformes |
| Scalloped Ribbonfish | Zu cristatus | Trachipteridae | Lampridiformes |
| Schultz's Pipefish | Corythoichthys schultzi | Syngnathidae | |
| Scissortail | Psenes pellucidus | Perciformes | |
| Scissortail Sergeant | Abudefduf sexfasciatus | Pomacentridae | Perciformes |
| Scrawled Leatherjacket | Aluterus scriptus | Monacanthidae | Tetraodontiformes |
| Sculptured Frogfish | Halophryne queenslandiae | Batrachoididae | |
| Sculptured Seamoth | Pegasus lancifer | Pegasidae | |
| Sea Sweep | Scorpis aequipinnis | Kyphosidae | Perciforomes |
| Senator Wrasse | Pictilabrus laticlavius | Labridae | Perciformes |