Aqua World Ibaraki Oarai
Species list as of 30 January 2025
There is an earlier review thread with some further discussion here: Aqua World Ibaraki Oarai, visit January 2025 [Aqua World Ibaraki Oarai Aquarium]
Photos of tanks and some of the fish in the gallery: Aqua World Ibaraki Oarai Aquarium - ZooChat
Signage at this Aquarium was amazingly accurate. Often in aquariums the signage does not match the tanks well (or at all in some cases!) but here every species in a tank was on the signage for that tank, and in only a few cases could I not find a signed species (and I suspect in those cases it was just that the animal was hiding). There were a couple of instances of common or scientific names being attached to the wrong picture, and there were some typos in the names here and there, but otherwise (with the major exception of the big ocean tank - see below) it was all excellent for letting the visitors know what was in each tank.
However, for a couple of reasons the following species list is not entirely complete.
The first reason is that I ran out of time to see everything. I had thought the closing time of the aquarium was 5pm (which would have given me three hours there), but it was actually 4pm. This meant that I ignored the closing announcements (in Japanese) from about 3.30pm because I thought they must be for something else, until at 4pm a security guard came and told me they were closed now, and so I had to miss an entire section (the "Ocean Terrace", which on the map is labelled with Humboldt Penguin, Californian Sealion, and South American Fur Seal, but which probably had additional tanks for fish as well).
The second reason is that, bizarrely (given how excellently the rest of the Aquarium was signed), the big ocean tank lacked signage entirely. This tank is viewed from several points - through a side window, from the front window at "ground" level, and then also from the next floor (again at the front window) - and I looked for signage at each point without seeing any. There are a lot of fish in this tank, including numerous shark and ray species which are not displayed in the other tanks in the building. Anything kept in this tank is therefore missing off the species lists below.
MAMMALS:
Bottlenose Dolphin Tursiops truncatus (seen in the show)
North American River Otter Lontra canadensis
Spotted Seal Phoca largha
Californian Sealion Zalophus californianus (seen in the show, otherwise kept on the "Ocean Terrace")
South American Fur Seal Arctocephalus australis (not seen - kept on the "Ocean Terrace" which I had to miss)
BIRDS:
Humboldt Penguin Spheniscus humboldti (not seen - kept on the "Ocean Terrace" which I had to miss)
Tufted Puffin Fratercula cirrhata
REPTILES:
Reeves' Turtle Mauremys reevesii
Red-eared Slider Trachemys scrita elegans
JAWLESS FISH:
Purple Hagfish Eptatretus okinoseanus
Brown Hagfish Eptatretus atami
SHARKS and RAYS:
These are the 43 species of sharks and rays for which I saw signage, but note that there were multiple other species in the unsigned ocean tank. There were only two of the signed shark species which I did not see (Sicklefin Lemon Shark Negaprion acutidens and Japanese Wobbegong Orectolobus japonicus - and the first one was actually in photos I took of the tank, I just somehow couldn't see it when I was there).
Ring-streaked Guitarfish Rhinobatos hynnicephalus
Mottled Skate Raja pulchra
Chinese Fan-Ray Platyrhina tangi
Japanese Eagle Ray Myliobatis tobijei
Mandarin Dogfish Cirrhigaleus barbifer
Japanese Sawshark Pristiophorus japonicus
Japanese Angelshark Squatina japonica
Crested Bullhead Shark Heterodontus galeatus
Japanese Bullhead Shark Heterodontus japonicus
Port Jackson Shark Heterodontus portusjacksoni
Zebra Bullhead Shark Heterodontus zebra
Sand Tiger Shark Carcharias taurus
Blind Shark Brachaelurus waddi
Nurse Shark Ginglymostoma cirratum
Tawny Nurse Shark Nebrius ferrugineus
Short-tailed Nurse Shark Pseudoginglymostoma brevicaudatum
Arabian Catshark Chiloscyllium arabicum
Grey Bamboo-Shark Chiloscyllium griseum
White-spotted Bamboo-Shark Chiloscyllium plagiosum
Brown-banded Bamboo-Shark Chiloscyllium punctatum
Epaulette Shark Hemiscyllium ocellatum
Speckled Carpetshark Hemiscyllium trispeculare
Tasselled Wobbegong Eucrossorhinus dasypogon
Japanese Wobbegong Orectolobus japonicus
Spotted Wobbegong Orectolobus maculatus
Northern Wobbegong Orectolobus wardi
Necklaced Carpetshark Parascyllium variolatum
Zebra Shark Stegostoma tigrinum
Copper Shark Carcharhinus brachyurus
Blacktip Reef Shark Carcharhinus melanopterus
Sicklefin Lemon Shark Negaprion acutidens
Whitetip Reef Shark Triaenodon obesus
Broadfin Sawtail Catshark Galeus nipponensis
Indonesian Speckled Catshark Halaelurus maculosus
Salamander Shark Parmaturus pilosus
Graceful Catshark Proscyllium habereri
Bali Catshark Atelomycterus baliensis
Banded Sand Catshark Atelomycterus fasciatus
Blotchy Swell-Shark Cephaloscyllium umbratile
Cloudy Catshark Scyliorhinus torazame
Scalloped Hammerhead Sphyrna lewini
Smooth Hammerhead Sphryna zygaena
Star-spotted Smooth-Hound Mustelus manazo
BONY FISH:
Because there are so many bony fish here I have broken them up into their taxonomic orders, although of course there are sometimes different opinions on orders and families and subfamilies and what goes where (e.g. especially with Perciformes and Scorpaeniformes).
ANGUILLIFORMES:
Anguillidae:
Japanese Eel Anguilla japonica
Giant Mottled Eel Anguilla marmorata
Muraenidae:
White-eyed (Greyface) Moray Gymnothorax thyrsoideus
Ophichthidae:
Banded Snake-Eel Myrichthys colubrinus (labeled with the common name "Broadnose Worm-Eel")
Longbill Snake-Eel Ophisurus macrorhynchus
Congridae:
Spotted Garden Eel Heteroconger hassi
Splendid Garden Eel Gorgasia preclara
Japanese Garden Eel (Pacific Spaghetti Eel) Gorgasia japonica
CYPRINIFORMES:
Cobitidae:
Oriental Weatherfish Misgurnus anguillicaudatus
Cyprinidae:
Goldfish Carassius auratus (signed as Carassius auratus langsdorfii)
Japanese Crucian Carp Carassius cuvieri
Common Carp Cyprinus carpio
Xencyprididae:
Dark Chub Nipponocypris temminckii (signed as Candidia temminckii)
Pale Chub Zacco platypus (signed as "Freshwater Minnow Opsariichthys platypus")
Gobionidae:
Barbel Steed Hemibarbus labeo (signed under the synonym Hemibarbus barbus)
Leuciscidae:
Pacific Redfin Pseudaspius brandtii (signed under the synonym genus Tribolodon)
Big-scaled Redfin Pseudaspius hakonensis (signed under the synonym genus Tribolodon)
Downstream Fat-Minnow Rhynchocypris lagowskii steindachneri (signed under the old genus Phoxinus)
SILURIFORMES:
Plotosidae:
Striped Eel-Catfish Plotosus lineatus
Bagridae:
Cut-tailed Bagrid Catfish Pseudobagrus tokiensis
Siluridae:
Amur Catfish Silurus asotus
Ictaluridae:
Channel Catfish Ictalurus punctatus
SALMONIFORMES:
Salmonidae:
Cherry Salmon Oncorhynchus masou masou
Japanese Char Salvelinus leucomaenis pluvius
OSMERIFORMES:
Plecoglossidae:
Ayu Sweetfish Plecoglossus altivelis altivelis
TRACHICHTHYIFORMES:
Monocentridae:
Japanese Pineapple Fish Monocentris japonicus
BERYCIFORMES:
Holocentridae:
Blotcheye Soldierfish Myripristis berndti
Redcoat Sargocentron rubrum
GOBIIFORMES:
Apogonidae:
Longspine Cardinalfish Apogon leptacanthus
Southern Orange-lined Cardinalfish Ostorhinchus properuptus
Luminous Cardinalfish Rhabdamia gracilis
Oxudercidae:
Forktongue Goby Gymnogobius urotaenia
Shimofuri Goby Tridentiger bifasciatus
Dusky Tripletooth Goby Tridentiger brevispinis
Gobiiidae:
Blackfin Dartfish Ptereleotris evides
Yellow Shrimp Goby Cryptocentrus cinctus
Fathead Goby Glossogobius olivaceus
SYNGNATHIFORMES:
Syngnathidae:
Big-bellied Seahorse Hippocampus abdominalis
Messmate Pipefish Corythoichthys haematopterus
Centriscidae:
Shrimpfish Aeoliscus strigatus
SCOMBRIFORMES:
Centrolophidae:
Pacific Barrelfish Hyperoglyphe japonica
ANABANTIFORMES:
Channidae:
Northern Snakehead Channa argus
CARANGIIFORMES:
Pleuronectidae:
Roughscale Sole Clidoderma asperrimum
Slime Flounder Microstomus achne
BELONIFORMES:
Adrianichthyidae:
Japanese Rice Fish Oryzias latipes
MUGILIFORMES:
Mugilidae:
Grey Mullet Mugil cephalus
So-iny Mullet Planiliza haematocheilus (signed under the synonym genus Chelon) - I thought the common name on the signage was a typo for either "spiny" or "shiny", but So-iny Mullet is in fact the common name. Wikipedia says it is also called the So-iuy Mullet, Redlip Mullet, and Haarder.
BLENIIFORMES:
Pomacentridae:
Clark's Anemonefish Amphiprion clarkii
Clown Anemonefish Amphiprion ocellaris
Five-banded Damselfish Abudefduf vaigiensis
Golden Damselfish Amblyglyphiododon aureus
Staghorn Damselfish Amblyglyphiododon curacao
Blue-Green Damselfish Chromis viridis
Blue Damselfish Chrysiptera cyanea
Yellowtail Damselfish Chrysiptera parasema
Banded Humbug Dascyllus aruanus
Blacktail Humbug Dascyllus melanurus
Three-spot Damselfish Dascyllus trimaculatus
Blue-ribboned Demoiselle Neopomacentrus taeniurus
White-spotted Devil Plectroglyphiododon lacrymatus
Neon Damselfish Pomacentrus coelestis
Lemon Damselfish Pomacentrus moluccensis
Embiotocidae:
Temminck's Surfperch Ditrema temmincki
Bleniidae:
Brown Coral Blenny Atrosalarias holomelas (signed as Atrosalarias fuscus holomelas)
Elegant Blenny Omobranchus elegans
PERCIFORMES / SCORPAENIFORMES:
Anthiadidae:
One-spot Anthias Odontanthias unimaculatus
Peach Fairy Basslet Pseudanthias dispar
Lori's Anthias Pseudanthias lori
Square-spot Fairy Basslet Pseudanthias pleurotaenia
Sea Goldie Pseudanthias squamipinnis
Epinephelidae:
Hong Kong Grouper Epinephelus akaara
Giant Grouper Epinephelus lanceolatus
Seven-banded Grouper Epinephelus septemfasciatus (Hyporthodus septemfasciatus)
Platycephalidae:
Bartail Flathead Platycephalus sp.
Scorpaenidae:
Hilgendorf's Saucord Helicolenus hilgendorfii
Black Rockfish Sebastes cheni
Snowy Rockfish Sebastes nivosus
False Kelpfish Sebasticus marmoratus
Stonefish Synanceia verrucosa
Devil Stinger Inimicus japonicus
Lionfish Pterois volans (labeled with the common name "Butterfly Cod")
Anoplopomatidae:
Skilfish Erilepis zonifer
Cottidae:
Japanese Fluvial Sculpin Cottus pollux
CENTRARCHIFORMES:
Girellidae:
Largescale Blackfish Girella punctata
Kyphosidae:
Yellow-striped Butterfish Labracoglossa argentiventris
Stripey Microcanthus strigatus
Terapontidae:
Sharpbeak Terapon Rhynchopelates oxyrhynchus
Jarbua Terapon Terapon jarbua
Oplegnathidae:
Barred Knifejaw Oplegnathus fasciatus
Cirrhitidae:
Yellow Hawkfish Cirrhitichthys aureus
Dwarf Hawkfish Cirrhitichthys falco
Longnose Hawkfish Oxycirrhites typus
Cheilodactylidae:
Spotted-tail Morwong Cheilodactylus zonatus
CALLIONYMIFORMES:
Callionymidae:
Mandarinfish Synchiropus splendidus
LABRIFORMES:
Labridae:
Blueside Wrasse Cirrhilabrus cyanopleura
Canary Wrasse Halichoeres chrysus
Tail-spot Wrasse Halichoeres melanurus
Bluestreak Cleaner Wrasse Labroides dimidiatus
Pinguipedidae:
Gold-bridled Sandsmelt Parapercis multifasciata
ACROPOMATIFORMES:
Acropomatidae:
Rosy Seabass Doederleinia berycoides
Lateolabracidae:
Japanese Seabass Lateolabrus japonicus
Pempheridae:
Slender Sweeper Parapriacanthus ransonneti
Pentacerotidae:
Japanese Armourhead Pentaceros japonicus
Stereolepididae:
Striped Jewfish Stereolepis doederleini
ACANTHURIFORMES:
Haemulidae:
Painted Sweetlips Plectorhinchus picus
Lobotidae / Hapalogenyidae:
Long-barbeled Grunter Hapalogenys sennin
Short-barbeled Grunter Hapalogenys nigripinnis
Monodactylidae:
Silver Mono Monodactylus argenteus (labeled with the common name "Batfish")
Lutjanidae:
Blue-striped Snapper Lutjanus kasmira
Pomacanthidae:
Emperor Angelfish Pomacanthus imperator
Semicircle Angelfish Pomacanthus semicirculatus
Chaetodonidae:
Threadfin Butterflyfish Chaetodon auriga
Oriental Butterflyfish Chaetodon auripes
Saddle Butterflyfish Chaetodon ephippium
Raccoon Butterflyfish Chaetodon lunula
Mailed Butterflyfish Chaetodon reticulatus
Japanese Butterflyfish Chaetodon nippon
Pacific Double-Saddle Butterflyfish Chaetodon ulietensis
Pyramid Butterflyfish Hemitaurichthys polylepis
Leiognathidae:
Spotnape Ponyfish Nuchequula nuchalis (signed as the genus Leiognathus)
Acanthuridae:
Palette Surgeonfish Paracanthurus hepatus
Chocolate Surgeonfish Acanthurus pyroferus
Siganidae:
Blotched Foxface Siganus unimaculatus
Barhead Spinefoot (Double-barred Rabbitfish) Siganus virgatus (labeled with the common name "Blue-lined Spinefoot")
Sparidae:
Black Seabream Acanthopagrus schlegelii
Crimson Seabream Evynnis tumifrons (signed under the synonym Evynnis japonica)
TETRAODONTIFORMES:
Aracanidae:
Itomaki Basketfish Kentorocapros aculeatus
Balistidae:
Red-toothed Triggerfish Odonus niger
Monacanthidae:
Threadsail Filefish Stephanolepis cirrhifer
Molidae:
Ocean Sunfish Mola mola
Tetraodontidae:
Bennett's Sharpnose Pufferfish Canthigaster bennetti
Valentin's Sharpnose Pufferfish Canthigaster valentini
Grass Pufferfish Takifugu niphobles
Panther Pufferfish Takifugu pardalis
Fine-patterned Pufferfish Takifugu poecilonotus
Purple Pufferfish Takifugu porphyreus
Japanese Pufferfish Takifugu rubripes
Vermiculated Pufferfish Takifugu snyderi
Diodontidae:
Pacific Burrfish Chilomycterus reticulatus
Long-spined Porcupinefish Diodon holocanthus
INVERTEBRATES:
Giant Isopod Bathynomus doederleini
Oriental River Prawn Macrobrachium nipponense
Carpenter Prawn Palaemon serrifer
Pacific Cleaner Shrimp Lysmata amboinensis
Banded Coral Shrimp Stenopus hispidus
Durban Hingebeak Shrimp Rhynchocinetes durbanensis
Japanese Spiny Lobster Panulirus japonicus
Japanese Furrow Lobster Nupalirus japonicus
Deepsea Squat Lobster Grimothea princeps (syn. Cervimunida princeps)
Japanese Spider Crab Macrocheira kaempferi
Deepsea Spider Crab Tunepugettia sagamiensis (syn. Pugettia sagamiensis)
Common Box Crab Calappa lophos
Red Egg Crab Atergatis reticulatus
Nada Crab Romaleon nadaense
Japanese Freshwater Crab Geothelphusa dehaani
Mud Crab Helice tridens
Red-clawed Crab Chiromantes haematocheir
Brackish-water Crab Chiromantes dehaani
Red Flower Crab Sesarmops intermedium
Brush-clawed Shore Crab Hemigrapsus takanoi
Mangrove Crab Scylla serrata
Japanese Mitten Crab Eriocheir japonica
Strawberry Conch Conomurex luchuanus
Tiles' Nudibranch Plocamopherus tilesii
"Red-banded Octopus" ("Octopus sp.")
Sea Fan Menella rigida
Sea Whip Ellisella rubra
Stony Cup Coral Dendrophyllia cylindrica
Stony Cup Coral ("Dendrophylliidae gen. sp.")
Black Sea Cucumber (Lolly Fish) Holothuria atra
Magnificent Anemone Radianthus magnifica (signed under the synonym Radianthus ritteri)
Bubble-tip Anemone Entacmaea actinostoloides
Sea Anemone ("Actinostolidae gen. et. sp.")
Species list as of 30 January 2025
There is an earlier review thread with some further discussion here: Aqua World Ibaraki Oarai, visit January 2025 [Aqua World Ibaraki Oarai Aquarium]
Photos of tanks and some of the fish in the gallery: Aqua World Ibaraki Oarai Aquarium - ZooChat
Signage at this Aquarium was amazingly accurate. Often in aquariums the signage does not match the tanks well (or at all in some cases!) but here every species in a tank was on the signage for that tank, and in only a few cases could I not find a signed species (and I suspect in those cases it was just that the animal was hiding). There were a couple of instances of common or scientific names being attached to the wrong picture, and there were some typos in the names here and there, but otherwise (with the major exception of the big ocean tank - see below) it was all excellent for letting the visitors know what was in each tank.
However, for a couple of reasons the following species list is not entirely complete.
The first reason is that I ran out of time to see everything. I had thought the closing time of the aquarium was 5pm (which would have given me three hours there), but it was actually 4pm. This meant that I ignored the closing announcements (in Japanese) from about 3.30pm because I thought they must be for something else, until at 4pm a security guard came and told me they were closed now, and so I had to miss an entire section (the "Ocean Terrace", which on the map is labelled with Humboldt Penguin, Californian Sealion, and South American Fur Seal, but which probably had additional tanks for fish as well).
The second reason is that, bizarrely (given how excellently the rest of the Aquarium was signed), the big ocean tank lacked signage entirely. This tank is viewed from several points - through a side window, from the front window at "ground" level, and then also from the next floor (again at the front window) - and I looked for signage at each point without seeing any. There are a lot of fish in this tank, including numerous shark and ray species which are not displayed in the other tanks in the building. Anything kept in this tank is therefore missing off the species lists below.
MAMMALS:
Bottlenose Dolphin Tursiops truncatus (seen in the show)
North American River Otter Lontra canadensis
Spotted Seal Phoca largha
Californian Sealion Zalophus californianus (seen in the show, otherwise kept on the "Ocean Terrace")
South American Fur Seal Arctocephalus australis (not seen - kept on the "Ocean Terrace" which I had to miss)
BIRDS:
Humboldt Penguin Spheniscus humboldti (not seen - kept on the "Ocean Terrace" which I had to miss)
Tufted Puffin Fratercula cirrhata
REPTILES:
Reeves' Turtle Mauremys reevesii
Red-eared Slider Trachemys scrita elegans
JAWLESS FISH:
Purple Hagfish Eptatretus okinoseanus
Brown Hagfish Eptatretus atami
SHARKS and RAYS:
These are the 43 species of sharks and rays for which I saw signage, but note that there were multiple other species in the unsigned ocean tank. There were only two of the signed shark species which I did not see (Sicklefin Lemon Shark Negaprion acutidens and Japanese Wobbegong Orectolobus japonicus - and the first one was actually in photos I took of the tank, I just somehow couldn't see it when I was there).
Ring-streaked Guitarfish Rhinobatos hynnicephalus
Mottled Skate Raja pulchra
Chinese Fan-Ray Platyrhina tangi
Japanese Eagle Ray Myliobatis tobijei
Mandarin Dogfish Cirrhigaleus barbifer
Japanese Sawshark Pristiophorus japonicus
Japanese Angelshark Squatina japonica
Crested Bullhead Shark Heterodontus galeatus
Japanese Bullhead Shark Heterodontus japonicus
Port Jackson Shark Heterodontus portusjacksoni
Zebra Bullhead Shark Heterodontus zebra
Sand Tiger Shark Carcharias taurus
Blind Shark Brachaelurus waddi
Nurse Shark Ginglymostoma cirratum
Tawny Nurse Shark Nebrius ferrugineus
Short-tailed Nurse Shark Pseudoginglymostoma brevicaudatum
Arabian Catshark Chiloscyllium arabicum
Grey Bamboo-Shark Chiloscyllium griseum
White-spotted Bamboo-Shark Chiloscyllium plagiosum
Brown-banded Bamboo-Shark Chiloscyllium punctatum
Epaulette Shark Hemiscyllium ocellatum
Speckled Carpetshark Hemiscyllium trispeculare
Tasselled Wobbegong Eucrossorhinus dasypogon
Japanese Wobbegong Orectolobus japonicus
Spotted Wobbegong Orectolobus maculatus
Northern Wobbegong Orectolobus wardi
Necklaced Carpetshark Parascyllium variolatum
Zebra Shark Stegostoma tigrinum
Copper Shark Carcharhinus brachyurus
Blacktip Reef Shark Carcharhinus melanopterus
Sicklefin Lemon Shark Negaprion acutidens
Whitetip Reef Shark Triaenodon obesus
Broadfin Sawtail Catshark Galeus nipponensis
Indonesian Speckled Catshark Halaelurus maculosus
Salamander Shark Parmaturus pilosus
Graceful Catshark Proscyllium habereri
Bali Catshark Atelomycterus baliensis
Banded Sand Catshark Atelomycterus fasciatus
Blotchy Swell-Shark Cephaloscyllium umbratile
Cloudy Catshark Scyliorhinus torazame
Scalloped Hammerhead Sphyrna lewini
Smooth Hammerhead Sphryna zygaena
Star-spotted Smooth-Hound Mustelus manazo
BONY FISH:
Because there are so many bony fish here I have broken them up into their taxonomic orders, although of course there are sometimes different opinions on orders and families and subfamilies and what goes where (e.g. especially with Perciformes and Scorpaeniformes).
ANGUILLIFORMES:
Anguillidae:
Japanese Eel Anguilla japonica
Giant Mottled Eel Anguilla marmorata
Muraenidae:
White-eyed (Greyface) Moray Gymnothorax thyrsoideus
Ophichthidae:
Banded Snake-Eel Myrichthys colubrinus (labeled with the common name "Broadnose Worm-Eel")
Longbill Snake-Eel Ophisurus macrorhynchus
Congridae:
Spotted Garden Eel Heteroconger hassi
Splendid Garden Eel Gorgasia preclara
Japanese Garden Eel (Pacific Spaghetti Eel) Gorgasia japonica
CYPRINIFORMES:
Cobitidae:
Oriental Weatherfish Misgurnus anguillicaudatus
Cyprinidae:
Goldfish Carassius auratus (signed as Carassius auratus langsdorfii)
Japanese Crucian Carp Carassius cuvieri
Common Carp Cyprinus carpio
Xencyprididae:
Dark Chub Nipponocypris temminckii (signed as Candidia temminckii)
Pale Chub Zacco platypus (signed as "Freshwater Minnow Opsariichthys platypus")
Gobionidae:
Barbel Steed Hemibarbus labeo (signed under the synonym Hemibarbus barbus)
Leuciscidae:
Pacific Redfin Pseudaspius brandtii (signed under the synonym genus Tribolodon)
Big-scaled Redfin Pseudaspius hakonensis (signed under the synonym genus Tribolodon)
Downstream Fat-Minnow Rhynchocypris lagowskii steindachneri (signed under the old genus Phoxinus)
SILURIFORMES:
Plotosidae:
Striped Eel-Catfish Plotosus lineatus
Bagridae:
Cut-tailed Bagrid Catfish Pseudobagrus tokiensis
Siluridae:
Amur Catfish Silurus asotus
Ictaluridae:
Channel Catfish Ictalurus punctatus
SALMONIFORMES:
Salmonidae:
Cherry Salmon Oncorhynchus masou masou
Japanese Char Salvelinus leucomaenis pluvius
OSMERIFORMES:
Plecoglossidae:
Ayu Sweetfish Plecoglossus altivelis altivelis
TRACHICHTHYIFORMES:
Monocentridae:
Japanese Pineapple Fish Monocentris japonicus
BERYCIFORMES:
Holocentridae:
Blotcheye Soldierfish Myripristis berndti
Redcoat Sargocentron rubrum
GOBIIFORMES:
Apogonidae:
Longspine Cardinalfish Apogon leptacanthus
Southern Orange-lined Cardinalfish Ostorhinchus properuptus
Luminous Cardinalfish Rhabdamia gracilis
Oxudercidae:
Forktongue Goby Gymnogobius urotaenia
Shimofuri Goby Tridentiger bifasciatus
Dusky Tripletooth Goby Tridentiger brevispinis
Gobiiidae:
Blackfin Dartfish Ptereleotris evides
Yellow Shrimp Goby Cryptocentrus cinctus
Fathead Goby Glossogobius olivaceus
SYNGNATHIFORMES:
Syngnathidae:
Big-bellied Seahorse Hippocampus abdominalis
Messmate Pipefish Corythoichthys haematopterus
Centriscidae:
Shrimpfish Aeoliscus strigatus
SCOMBRIFORMES:
Centrolophidae:
Pacific Barrelfish Hyperoglyphe japonica
ANABANTIFORMES:
Channidae:
Northern Snakehead Channa argus
CARANGIIFORMES:
Pleuronectidae:
Roughscale Sole Clidoderma asperrimum
Slime Flounder Microstomus achne
BELONIFORMES:
Adrianichthyidae:
Japanese Rice Fish Oryzias latipes
MUGILIFORMES:
Mugilidae:
Grey Mullet Mugil cephalus
So-iny Mullet Planiliza haematocheilus (signed under the synonym genus Chelon) - I thought the common name on the signage was a typo for either "spiny" or "shiny", but So-iny Mullet is in fact the common name. Wikipedia says it is also called the So-iuy Mullet, Redlip Mullet, and Haarder.
BLENIIFORMES:
Pomacentridae:
Clark's Anemonefish Amphiprion clarkii
Clown Anemonefish Amphiprion ocellaris
Five-banded Damselfish Abudefduf vaigiensis
Golden Damselfish Amblyglyphiododon aureus
Staghorn Damselfish Amblyglyphiododon curacao
Blue-Green Damselfish Chromis viridis
Blue Damselfish Chrysiptera cyanea
Yellowtail Damselfish Chrysiptera parasema
Banded Humbug Dascyllus aruanus
Blacktail Humbug Dascyllus melanurus
Three-spot Damselfish Dascyllus trimaculatus
Blue-ribboned Demoiselle Neopomacentrus taeniurus
White-spotted Devil Plectroglyphiododon lacrymatus
Neon Damselfish Pomacentrus coelestis
Lemon Damselfish Pomacentrus moluccensis
Embiotocidae:
Temminck's Surfperch Ditrema temmincki
Bleniidae:
Brown Coral Blenny Atrosalarias holomelas (signed as Atrosalarias fuscus holomelas)
Elegant Blenny Omobranchus elegans
PERCIFORMES / SCORPAENIFORMES:
Anthiadidae:
One-spot Anthias Odontanthias unimaculatus
Peach Fairy Basslet Pseudanthias dispar
Lori's Anthias Pseudanthias lori
Square-spot Fairy Basslet Pseudanthias pleurotaenia
Sea Goldie Pseudanthias squamipinnis
Epinephelidae:
Hong Kong Grouper Epinephelus akaara
Giant Grouper Epinephelus lanceolatus
Seven-banded Grouper Epinephelus septemfasciatus (Hyporthodus septemfasciatus)
Platycephalidae:
Bartail Flathead Platycephalus sp.
Scorpaenidae:
Hilgendorf's Saucord Helicolenus hilgendorfii
Black Rockfish Sebastes cheni
Snowy Rockfish Sebastes nivosus
False Kelpfish Sebasticus marmoratus
Stonefish Synanceia verrucosa
Devil Stinger Inimicus japonicus
Lionfish Pterois volans (labeled with the common name "Butterfly Cod")
Anoplopomatidae:
Skilfish Erilepis zonifer
Cottidae:
Japanese Fluvial Sculpin Cottus pollux
CENTRARCHIFORMES:
Girellidae:
Largescale Blackfish Girella punctata
Kyphosidae:
Yellow-striped Butterfish Labracoglossa argentiventris
Stripey Microcanthus strigatus
Terapontidae:
Sharpbeak Terapon Rhynchopelates oxyrhynchus
Jarbua Terapon Terapon jarbua
Oplegnathidae:
Barred Knifejaw Oplegnathus fasciatus
Cirrhitidae:
Yellow Hawkfish Cirrhitichthys aureus
Dwarf Hawkfish Cirrhitichthys falco
Longnose Hawkfish Oxycirrhites typus
Cheilodactylidae:
Spotted-tail Morwong Cheilodactylus zonatus
CALLIONYMIFORMES:
Callionymidae:
Mandarinfish Synchiropus splendidus
LABRIFORMES:
Labridae:
Blueside Wrasse Cirrhilabrus cyanopleura
Canary Wrasse Halichoeres chrysus
Tail-spot Wrasse Halichoeres melanurus
Bluestreak Cleaner Wrasse Labroides dimidiatus
Pinguipedidae:
Gold-bridled Sandsmelt Parapercis multifasciata
ACROPOMATIFORMES:
Acropomatidae:
Rosy Seabass Doederleinia berycoides
Lateolabracidae:
Japanese Seabass Lateolabrus japonicus
Pempheridae:
Slender Sweeper Parapriacanthus ransonneti
Pentacerotidae:
Japanese Armourhead Pentaceros japonicus
Stereolepididae:
Striped Jewfish Stereolepis doederleini
ACANTHURIFORMES:
Haemulidae:
Painted Sweetlips Plectorhinchus picus
Lobotidae / Hapalogenyidae:
Long-barbeled Grunter Hapalogenys sennin
Short-barbeled Grunter Hapalogenys nigripinnis
Monodactylidae:
Silver Mono Monodactylus argenteus (labeled with the common name "Batfish")
Lutjanidae:
Blue-striped Snapper Lutjanus kasmira
Pomacanthidae:
Emperor Angelfish Pomacanthus imperator
Semicircle Angelfish Pomacanthus semicirculatus
Chaetodonidae:
Threadfin Butterflyfish Chaetodon auriga
Oriental Butterflyfish Chaetodon auripes
Saddle Butterflyfish Chaetodon ephippium
Raccoon Butterflyfish Chaetodon lunula
Mailed Butterflyfish Chaetodon reticulatus
Japanese Butterflyfish Chaetodon nippon
Pacific Double-Saddle Butterflyfish Chaetodon ulietensis
Pyramid Butterflyfish Hemitaurichthys polylepis
Leiognathidae:
Spotnape Ponyfish Nuchequula nuchalis (signed as the genus Leiognathus)
Acanthuridae:
Palette Surgeonfish Paracanthurus hepatus
Chocolate Surgeonfish Acanthurus pyroferus
Siganidae:
Blotched Foxface Siganus unimaculatus
Barhead Spinefoot (Double-barred Rabbitfish) Siganus virgatus (labeled with the common name "Blue-lined Spinefoot")
Sparidae:
Black Seabream Acanthopagrus schlegelii
Crimson Seabream Evynnis tumifrons (signed under the synonym Evynnis japonica)
TETRAODONTIFORMES:
Aracanidae:
Itomaki Basketfish Kentorocapros aculeatus
Balistidae:
Red-toothed Triggerfish Odonus niger
Monacanthidae:
Threadsail Filefish Stephanolepis cirrhifer
Molidae:
Ocean Sunfish Mola mola
Tetraodontidae:
Bennett's Sharpnose Pufferfish Canthigaster bennetti
Valentin's Sharpnose Pufferfish Canthigaster valentini
Grass Pufferfish Takifugu niphobles
Panther Pufferfish Takifugu pardalis
Fine-patterned Pufferfish Takifugu poecilonotus
Purple Pufferfish Takifugu porphyreus
Japanese Pufferfish Takifugu rubripes
Vermiculated Pufferfish Takifugu snyderi
Diodontidae:
Pacific Burrfish Chilomycterus reticulatus
Long-spined Porcupinefish Diodon holocanthus
INVERTEBRATES:
Giant Isopod Bathynomus doederleini
Oriental River Prawn Macrobrachium nipponense
Carpenter Prawn Palaemon serrifer
Pacific Cleaner Shrimp Lysmata amboinensis
Banded Coral Shrimp Stenopus hispidus
Durban Hingebeak Shrimp Rhynchocinetes durbanensis
Japanese Spiny Lobster Panulirus japonicus
Japanese Furrow Lobster Nupalirus japonicus
Deepsea Squat Lobster Grimothea princeps (syn. Cervimunida princeps)
Japanese Spider Crab Macrocheira kaempferi
Deepsea Spider Crab Tunepugettia sagamiensis (syn. Pugettia sagamiensis)
Common Box Crab Calappa lophos
Red Egg Crab Atergatis reticulatus
Nada Crab Romaleon nadaense
Japanese Freshwater Crab Geothelphusa dehaani
Mud Crab Helice tridens
Red-clawed Crab Chiromantes haematocheir
Brackish-water Crab Chiromantes dehaani
Red Flower Crab Sesarmops intermedium
Brush-clawed Shore Crab Hemigrapsus takanoi
Mangrove Crab Scylla serrata
Japanese Mitten Crab Eriocheir japonica
Strawberry Conch Conomurex luchuanus
Tiles' Nudibranch Plocamopherus tilesii
"Red-banded Octopus" ("Octopus sp.")
Sea Fan Menella rigida
Sea Whip Ellisella rubra
Stony Cup Coral Dendrophyllia cylindrica
Stony Cup Coral ("Dendrophylliidae gen. sp.")
Black Sea Cucumber (Lolly Fish) Holothuria atra
Magnificent Anemone Radianthus magnifica (signed under the synonym Radianthus ritteri)
Bubble-tip Anemone Entacmaea actinostoloides
Sea Anemone ("Actinostolidae gen. et. sp.")
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