Ray-finned fishes finder
| Common name | Scientific name | Family | Order |
|---|---|---|---|
| Blackmargin Maori Wrasse | Oxycheilinus nigromarginatus | Labridae | Perciformes |
| Blacksaddle Filefish | Paraluteres prionurus | Monacanthidae | Tetraodontiformes |
| Blacksaddle Goatfish | Parupeneus spilurus | Mullidae | Perciformes |
| Blackspot Angelfish | Genicanthus melanospilos | Pomacanthidae | |
| Blackspot Anglerfish | Tathicarpus butleri | Antennariidae | Lophiiformes |
| Blackspotted Gurnard Perch | Neosebastes nigropunctatus | Neosebastidae | Scorpaeniformes |
| Black-spotted Porcupinefish | Diodon hystrix | Diodontidae | |
| Blackspotted Pufferfish | Arothron nigropunctatus | Tetraodontidae | Tetraodontiformes |
| Blackspotted Sandgoby | Istigobius nigroocellatus | Gobiidae | Perciformes |
| Black-spotted Wrasse | Austrolabrus maculatus | Labridae | |
| Blacktail Grubfish | Parapercis queenslandica | Pinguipedidae | Perciformes |
| Blacktail Snapper | Lutjanus fulvus | Lutjanidae | Perciformes |
| Blacktail Wrasse | Anampses melanurus | Labridae | Perciformes |
| Blacktip Bullseye | Pempheris affinis | Pempheridae | Perciformes |
| Blacktip Rockcod | Epinephelus fasciatus | Serranidae | Perciformes |
| Black-vent Damsel | Dischistodus melanotus | Pomacentridae | Perciformes |
| Blotched Bigeye | Heteropriacanthus cruentatus | Priacanthidae | Perciformes |
| Blotched Hawkfish | Cirrhitichthys aprinus | Cirrhitidae | Perciformes |
| Blotched Sand Goby | Fusigobius inframaculatus | Gobiidae | |
| Blue Angelfish | Pomacanthus semicirculatus | Pomacanthidae | Perciformes |
| Blue Drummer | Girella cyanea | Kyphosidae | Perciformes |
| Blue Grenadier | Macruronus novaezelandiae | Merlucciidae | Gadiformes |
| Blue Mackerel | Scomber australasicus | Scombridae | Perciformes |
| Blue Marlin | Makaira nigricans | Istiophoridae | Perciformes |
| Blue Razorfish | Iniistius pavo | Labridae | Perciformes |
| Blue Tang | Paracanthurus hepatus | Acanthuridae | Perciformes |
| Blue Trevally | Carangoides ferdau | Carangidae | |
| Blueband Goby | Valenciennea strigata | Gobiidae | Perciformes |
| Bluebarred Parrotfish | Scarus ghobban | Scaridae | Perciformes |