| アイゴ属 | [アイゴぞく, aigo zoku] (n) Siganus (genus of perciform fishes in the family Siganidae); rabbitfish; spinefoot; foxface |
| アイブリ属 | [アイブリぞく, aiburi zoku] (n) Seriolina (genus of jacks in the family Carangidae) |
| アウケニプテルス属 | [アウケニプテルスぞく, aukeniputerusu zoku] (n) Auchenipterus (genus of catfishes in the family Auchenipteridae) |
| アウロノカラ属 | [アウロノカラぞく, auronokara zoku] (n) Aulonocara (genus of cichlids endemic to Lake Malawi in East Africa in the family Cichlidae); peacock cichlids |
| アエクィデンス属 | [アエクィデンスぞく, aekuidensu zoku] (n) Aequidens (genus of fish in the family Cichlidae) |
| アオザメ属 | [アオザメぞく, aozame zoku] (n) Isurus (genus of mackerel sharks in the family Lamnidae commonly known as the mako sharks) |
| アオブダイ属 | [アオブダイぞく, aobudai zoku] (n) Scarus (genus of parrotfish in the family Scaridae) |
| アカギンザメ属 | [アカギンザメぞく, akaginzame zoku] (n) Hydrolagus (genus of cartilaginous fish in the family Chimaeridae) |
| アズマギンザメ属 | [アズマギンザメぞく, azumaginzame zoku] (n) Harriotta (genus with two species of long-nosed chimaeras in the family Rhinochimaeridae) |
| アマシイラ属 | [アマシイラぞく, amashiira zoku] (n) Luvarus (sole genus of perciform fish in the family Luvaridae whose only member is the luvar) |
| アメリカヤツメ属 | [アメリカヤツメぞく, amerikayatsume zoku] (n) Ichthyomyzon (genus of lamprey in the family Petromyzontidae) |
| アンフィカエトドン属 | [アンフィカエトドンぞく, anfikaetodon zoku] (n) Amphichaetodon (genus of butterflyfishes in the family Chaetodontidae) |
| イコクエイラクブカ属 | [イコクエイラクブカぞく, ikokueirakubuka zoku] (n) Galeorhinus (genus whose only member is the school shark, Galeorhinus galeus, in the family Triakidae) |
| イソハゼ属 | [イソハゼぞく, isohaze zoku] (n) Eviota (genus of very small reef-associated Indo-Pacific gobies in the family Gobiidae); pygmy gobies |
| イタチザメ属 | [イタチザメぞく, itachizame zoku] (n) Galeocerdo (genus in the family Carcharhinidae whose sole member is the tiger shark) |
| インドシュモクザメ属 | [インドシュモクザメぞく, indoshumokuzame zoku] (n) Eusphyra (genus of hammerhead shark in the family Sphyrnidae whose sole member is the winghead shark) |
| ウォビゴン | [, uobigon] (n) wobbegong (eleven species of carpet shark in the family Orectolobidae) |
| ウクライナヤツメ属 | [ウクライナヤツメぞく, ukurainayatsume zoku] (n) Eudontomyzon (genus of lamprey in the family Petromyzontidae) |
| ウバザメ属 | [ウバザメぞく, ubazame zoku] (n) Cetorhinus (sole genus of the only species of basking shark in the family Cetorhinidae) |
| ウミヤツメ属 | [ウミヤツメぞく, umiyatsume zoku] (n) Petromyzon (genus of lamprey in the family Petromyzontidae) |
| エイラクブカ属 | [エイラクブカぞく, eirakubuka zoku] (n) Hemitriakis (genus of houndshark in the family Triakidae) |
| エドアブラザメ属 | [エドアブラザメぞく, edoaburazame zoku] (n) Heptranchias (genus of cow shark in the family Hexanchidae containing the sharpnose seven-gill shark as its only member) |
| エビスザメ属 | [エビスザメぞく, ebisuzame zoku] (n) Notorynchus (genus of cow sharks in the family Hexanchidae whose only extant member is the broadnose sevengill shark) |
| オオセ属 | [オオセぞく, oose zoku] (n) Orectolobus (genus containing 9 species of wobbegong carpet sharks in the family Orectolobidae) |
| オオテンジクザメ属 | [オオテンジクザメぞく, ootenjikuzame zoku] (n) Nebrius (genus of a single species of nurse shark in the family Ginglymostomatidae) |
| オオトカゲ属 | [オオトカゲぞく, ootokage zoku] (n) Varanus (genus of carnivorous monitor lizards in the family Varanidae) |
| オナガザメ属 | [オナガザメぞく, onagazame zoku] (n) Alopias (genus of three extant thresher shark species in the family Alopiidae) |
| オナガドチザメ属 | [オナガドチザメぞく, onagadochizame zoku] (n) Eridacnis (genus of finback catshark in the family Proscylliidae) |
| オヤビッチャ属 | [オヤビッチャぞく, oyabiccha zoku] (n) Abudefduf (genus of damselfish in the family Pomacentridae) |
| カグラザメ属 | [カグラザメぞく, kagurazame zoku] (n) Hexanchus (genus of sixgill sharks in the family Hexanchidae comprised of 2 extant species) |
| カスピヤツメ属 | [カスピヤツメぞく, kasupiyatsume zoku] (n) Caspiomyzon (genus of lamprey in the family Petromyzontidae) |
| カスミチョウチョウウオ属 | [カスミチョウチョウウオぞく, kasumichouchouuo zoku] (n) Hemitaurichthys (genus of tropical butterflyfish in the family Chaetodontidae) |
| カワヤツメ属 | [カワヤツメぞく, kawayatsume zoku] (n) Lethenteron (genus of lamprey in the family Petromyzontidae) |
| ガンジスメジロザメ属 | [ガンジスメジロザメぞく, ganjisumejirozame zoku] (n) Glyphis (genus containing 5 known species of secretive true river sharks in the family Carcharhinidae) |
| カンムリベラ属 | [カンムリベラぞく, kanmuribera zoku] (n) Coris (genus of wrasses in the family Labridae) |
| ギンザメ属 | [ギンザメぞく, ginzame zoku] (n) Chimaera (genus of cartilaginous fish in the family Chimaeridae) |
| キンチャクフグ属 | [キンチャクフグぞく, kinchakufugu zoku] (n) Canthigaster (genus of pufferfish in the family Tetraodontidae) |
| クギベラ属 | [クギベラぞく, kugibera zoku] (n) Gomphosus (genus of marine wrasse in the family Labridae) |
| クテノポマ属 | [クテノポマぞく, kutenopoma zoku] (n) Ctenopoma (genus of freshwater climbing gouramies with terrestrial locomotion ability in the family Anabantidae) |
| クラカケザメ属 | [クラカケザメぞく, kurakakezame zoku] (n) Cirrhoscyllium (genus of collared carpet sharks in the family Parascylliidae) |
*in the family* ในภาษาไทย
*in the family* ในภาษาจีน
*in the family* ในภาษาญี่ปุ่น