All Fish

Kotlyar's whiptail

Mataeocephalus kotlyari

Not Evaluated saltwater

Kôtôkihôbô

Paraheminodus laticephalus

Not Evaluated saltwater

Kotso

Paretroplus petiti

Not Evaluated freshwater

Kotsovato

Paretroplus kieneri

Not Evaluated freshwater

Ko-tsukinowagarei

Samariscus xenicus

Not Evaluated saltwater

Kottelatlimia hipporhynchos

Not Evaluated freshwater

Kottelatlimia katik

Not Evaluated freshwater

Kottelatlimia pristes

Not Evaluated freshwater

Kottelat rasbora

Rasbora hobelmani

Not Evaluated freshwater

Kotthaus' deepwater dragonet

Callionymus kotthausi

Not Evaluated saltwater

Kouman's prawn-goby

Cryptocentrus strigilliceps

Not Evaluated saltwater

Krabi mouth brooder betta

Betta simplex

Not Evaluated freshwater

Kraemeria merensis

Not Evaluated saltwater

Kraemeria nuda

Not Evaluated saltwater

Krasnopolosyi lirokhvost

Aphyosemion lujae

Not Evaluated freshwater

Krasyukova's perch

Caprodon krasyukovae

Not Evaluated saltwater

Krauss' blenny

Enchelyurus kraussii

Not Evaluated saltwater

Krausses Buntbarsch

Caquetaia kraussii

Not Evaluated freshwater

Krbava minnow

Delminichthys krbavensis

Not Evaluated freshwater

Krefft's dreamer

Oneirodes kreffti

Not Evaluated saltwater

Krefft's ray

Malacoraja kreffti

Not Evaluated saltwater

Krefft's slickhead

Herwigia kreffti

Not Evaluated saltwater

Krefft's snaggletooth

Astronesthes kreffti

Not Evaluated saltwater

Kreiser's Killifish

Profundulus kreiseri

Not Evaluated freshwater

Krempf's flounder

Grammatobothus krempfi

Not Evaluated saltwater

Kreuzflecksalmler

Hemigrammus tridens

Not Evaluated freshwater

Kreuzstreifen-Schokoladengurami

Sphaerichthys selatanensis

Not Evaluated freshwater

Kribensis

Pelvicachromis taeniatus

Not Evaluated freshwater

Kribensis

Pelvicachromis subocellatus

Not Evaluated brackish

Kribia kribensis

Not Evaluated freshwater

Kribia leonensis

Not Evaluated freshwater

Kribia uellensis

Not Evaluated freshwater

Kribi killi

Fundulopanchax fallax

Not Evaluated freshwater

Krishna carp

Hypselobarbus dobsoni

Not Evaluated freshwater

Krishna mystus

Hemibagrus maydelli

Not Evaluated freshwater

Krobia

Krobia guianensis

Not Evaluated freshwater