Dodatak:Popis ribljih vrsta, Io

Rod Iodotropheus

1. Iodotropheus declivitas Stauffer, 1994
2. Iodotropheus sprengerae Oliver & Loiselle, 1972
3. Iodotropheus stuartgranti Konings, 1990

Actinopterygii > Perciformes > Cichlidae

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  Iodotropheus sprengerae

Rod Ioichthys

1. Ioichthys kashkini Parin, 2004

Actinopterygii > Osmeriformes > Opisthoproctidae

Rod Iotabrycon

1. Iotabrycon praecox Roberts, 1973

Actinopterygii > Characiformes > Characidae

Rod Iotichthys Jordan & Evermann, 1896

1. Iotichthys phlegethontis (Cope, 1874)

Pisces → Actinopterygii → Cypriniformes → Cyprinidae

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  Iotichthys phlegethontis