All Fish

Investigator perchlet

Chelidoperca investigatoris

Not Evaluated saltwater

Investigator pipefish

Cosmocampus investigatoris

Not Evaluated saltwater

Iodine bream

Gymnocranius euanus

Not Evaluated saltwater

Iodotropheus declivitas

Not Evaluated freshwater

Ioichthys kashkini

Not Evaluated saltwater

Iowa darter

Etheostoma exile

Not Evaluated freshwater

Ipnops meadi

Not Evaluated saltwater

Ipojuca catfish

Aspidoras depinnai

Not Evaluated freshwater

Iporanga tooth carp

Cnesterodon iguape

Not Evaluated freshwater

Iran cat

Glyptothorax kurdistanicus

Not Evaluated freshwater

Iranian Goby

Ponticola iranicus

Not Evaluated freshwater

Iranian scaleless tooth-carp

Aphaniops furcatus

Not Evaluated brackish

Iranocichla persa

Not Evaluated freshwater

Ira's snook

Centropomus irae

Not Evaluated both

Irezumigaji

Lycodes caudimaculatus

Not Evaluated saltwater

Irezumi-kujira-uo

Cetomimus compunctus

Not Evaluated saltwater

Irian Jaya rainbowfish

Melanotaenia irianjaya

Not Evaluated freshwater

Iridescent cardinalfish

Pristiapogon kallopterus

Not Evaluated saltwater

Iridescent glassy perchlet

Parambassis apogonoides

Not Evaluated freshwater

Iridescent shark-catfish

Pangasianodon hypophthalmus

Not Evaluated freshwater

Irina's pygmy goby

Trimma irinae

Not Evaluated saltwater

Irish pollan

Coregonus pollan

Not Evaluated freshwater

Irksome eel

Gordiichthys ergodes

Not Evaluated saltwater

Ironcolor shiner

Notropis chalybaeus

Not Evaluated freshwater

Ironjaw snapper

Aphareus rutilans

Not Evaluated saltwater

Irrawaddy mystus

Hemibagrus microphthalmus

Not Evaluated brackish

Irrawaddy river shark

Glyphis siamensis

Not Evaluated saltwater

Isaribi-gama-ankou

Porichthys bathoiketes

Not Evaluated saltwater

Isaza

Gymnogobius isaza

Not Evaluated freshwater

Isbrücker's Hypopygus

Hypopygus isbruckeri

Not Evaluated freshwater

Isbrueckerichthys calvus

Not Evaluated freshwater

Isbrueckerichthys epakmos

Not Evaluated freshwater

Isbrueckerichthys saxicola

Not Evaluated freshwater

Ishi-dojô

Cobitis takatsuensis

Not Evaluated freshwater

Ishi-donko

Odontobutis hikimius

Not Evaluated freshwater

Ishikawa-shira-uo

Neosalangichthys ishikawae

Not Evaluated both