Fish Species of the Atlantic Ocean

Onesided livebearer

Jenynsia multidentata

LC 💧 Freshwater

Opah

Lampris guttatus

LC 🌊 Marine

Opal allotoca

Allotoca dugesii

EN 💧 Freshwater

Opaleye

Girella nigricans

LC 🌊 Marine

Opata sucker

Catostomus wigginsi

VU 💧 Freshwater

Ophidion Lozanoi

Ophidion lozanoi

LC 🌊 Marine

Ophidion Saldanhai

Ophidion saldanhai

DD 🌊 Marine

Opossum pipefish

Microphis lineatus

🔄 Diadromous

Orange bellowfish

Notopogon fernandezianus

LC 🌊 Marine

Orange eel

Myroconger nigrodentatus

LC 🌊 Marine

Orange filefish

Aluterus schoepfii

LC 🌊 Marine

Orange roughy

Hoplostethus atlanticus

🌊 Marine

Orange-fringed largemouth

Chetia brevis

EN 💧 Freshwater

Orangeback bass

Serranus annularis

LC 🌊 Marine

Orangefin barb

Enteromius eutaenia

LC 💧 Freshwater

Orangefin madtom

Noturus gilberti

EN 💧 Freshwater

Orangefin tetra

Bryconops affinis

LC 💧 Freshwater

Orangeside triggerfish

Sufflamen verres

LC 🌊 Marine

Orangespine unicornfish

Naso lituratus

LC 🌊 Marine

Orangespotted blenny

Hypleurochilus springeri

LC 🌊 Marine

Orangespotted goby

Nes longus

LC 🌊 Marine

Orangespotted Goby

Bollmannia chlamydes

LC 🌊 Marine

Orangethroat pikeblenny

Chaenopsis alepidota

LC 🌊 Marine

Orbicular batfish

Platax orbicularis

LC 🌊 Marine

Ordinary eel

Ethadophis byrnei

DD 🌊 Marine

Orinoco Banjo

Bunocephalus aleuropsis

LC 💧 Freshwater

Orinoco eartheater

Biotodoma wavrini

LC 💧 Freshwater

Orinoco Needlefish

Pseudotylosurus microps

LC 💧 Freshwater

Orinoco sailfin catfish

Pterygoplichthys multiradiatus

LC 💧 Freshwater

Orinocodoras Eigenmanni

Orinocodoras eigenmanni

LC 💧 Freshwater

Ornamented flyingfish

Cypselurus callopterus

LC 🌊 Marine

Ornate cory

Corydoras ornatus

LC 💧 Freshwater

Ornate stargazer

Gillellus ornatus

LC 🌊 Marine

Ornate wrasse

Thalassoma pavo

LC 🌊 Marine

Orocue cory

Corydoras esperanzae

DD 💧 Freshwater

Orthosternarchus Tamandua

Orthosternarchus tamandua

LC 💧 Freshwater

Oscar

Astronotus ocellatus

LC 💧 Freshwater

Ostenfeld's lanternfish

Diaphus ostenfeldi

LC 🌊 Marine

Otocinclus Bororo

Otocinclus bororo

LC 💧 Freshwater

Otocinclus Caxarari

Otocinclus caxarari

LC 💧 Freshwater

Otocinclus Hasemani

Otocinclus hasemani

LC 💧 Freshwater

Otocinclus Huaorani

Otocinclus huaorani

LC 💧 Freshwater

Otocinclus Mura

Otocinclus mura

LC 💧 Freshwater

Otocinclus Tapirape

Otocinclus tapirape

LC 💧 Freshwater

Otocinclus Xakriaba

Otocinclus xakriaba

LC 💧 Freshwater

Oval damselfish

Chromis alta

LC 🌊 Marine

Oval flounder

Syacium ovale

LC 🌊 Marine

Oval Puffer

Sphoeroides rosenblatti

LC 🌊 Marine