सभी मछलियाँ

Odontostilbe euspilurus

Not Evaluated freshwater

Odontostilbe littoris

Not Evaluated freshwater

Odontostilbe paraguayensis

Not Evaluated freshwater

Okhotsk skate

Bathyraja violacea

Not Evaluated saltwater

Okinawa chromis

Chromis okamurai

Not Evaluated saltwater

Olga cory

Corydoras simulatus

Not Evaluated freshwater

Okefenokee pygmy sunfish

Elassoma okefenokee

Not Evaluated freshwater

Okapi goby

Gobionellus liolepis

Not Evaluated saltwater

Okhotsk snailfish

Liparis ochotensis

Not Evaluated saltwater

Oktedi rainbowfish

Melanotaenia oktediensis

Not Evaluated freshwater

Okitango

Neoditrema ransonnetii

Not Evaluated saltwater

Okamejei philipi

Not Evaluated saltwater

Okikazunagi

Opisthocentrus zonope

Not Evaluated saltwater

Old woman

Pomacanthus rhomboides

Not Evaluated saltwater

Okinawa pygmy-goby

Trimma okinawae

Not Evaluated saltwater

Onespot moray

Gymnothorax monostigma

Not Evaluated saltwater

Onespot waspfish

Neocentropogon aeglefinus

Not Evaluated saltwater

Onychostoma uniforme

Not Evaluated freshwater

O'ome chihiro-haze

Obliquogobius megalops

Not Evaluated saltwater

Oneirodes haplonema

Not Evaluated saltwater

Oneirodes melanocauda

Not Evaluated saltwater

Oneirodes pietschi

Not Evaluated saltwater

Oneirodes sanjeevani

Not Evaluated saltwater

Oneirodes sipharum

Not Evaluated saltwater

Onychostoma minnanense

Not Evaluated freshwater

Ooban-konnyakuuo

Squaloliparis dentatus

Not Evaluated saltwater

Onishachi-uo

Tilesina gibbosa

Not Evaluated saltwater

Adorned fairy-warsse

Cirrhilabrus adornatus

Not Evaluated saltwater

Opsarius cocsa

Not Evaluated freshwater

Opsarius howesi

Not Evaluated freshwater

Opsarius kanaensis

Not Evaluated freshwater

Opsarius maculatus

Not Evaluated freshwater

Opsarius malabaricus

Not Evaluated freshwater

Opistognathus walkeri

Not Evaluated saltwater

Opsariichthys bea

Not Evaluated freshwater

Opsariichthys dienbienensis

Not Evaluated freshwater