Todos los Peces

Olyra collettii

Not Evaluated freshwater

Oman blenny

Oman ypsilon

Not Evaluated saltwater

Omobranchus hikkaduwensis

Not Evaluated saltwater

Ompok binotatus

Not Evaluated freshwater

Oneirodes sipharum

Not Evaluated saltwater

Onychostoma minnanense

Not Evaluated freshwater

Ooban-konnyakuuo

Squaloliparis dentatus

Not Evaluated saltwater

Onishachi-uo

Tilesina gibbosa

Not Evaluated saltwater

Bikini Atoll moray

Enchelycore bikiniensis

Not Evaluated saltwater

Ophichthus congroides

Not Evaluated saltwater

Ophichthus genie

Not Evaluated saltwater

Ophichthus humanni

Not Evaluated saltwater

Ophichthus ishiyamorum

Not Evaluated saltwater

Ophichthus limkouensis

Not Evaluated saltwater

Ophichthus macrops

Not Evaluated saltwater

Ophichthus maculatus

Not Evaluated saltwater

Ophichthus microstictus

Not Evaluated saltwater

Yellowfin fairy wrasse

Cirrhilabrus flavidorsalis

Not Evaluated saltwater

Orange brotula

Microbrotula punicea

Not Evaluated saltwater

Orange Ctenopoma

Microctenopoma ansorgii

Not Evaluated freshwater

Orange-banded scorpionfish

Neosebastes entaxis

Not Evaluated saltwater

Orangebanded gurnard perch

Neosebastes occidentalis

Not Evaluated saltwater

Orange bellowfish

Notopogon fernandezianus

Not Evaluated saltwater

Opsarius nelsoni

Not Evaluated freshwater

Opsarius pectoralis

Not Evaluated freshwater

Opsarius profundus

Not Evaluated freshwater

Opsarius putaoensis

Not Evaluated freshwater

Opsarius signicaudus

Not Evaluated freshwater

Orange dottyback

Pseudochromis luteus

Not Evaluated saltwater

Human's fairy-warsse

Cirrhilabrus humanni

Not Evaluated saltwater

Oreonectes acridorsalis

Not Evaluated freshwater

Oreonectes donglanensis

Not Evaluated freshwater

Oreonectes elongatus

Not Evaluated freshwater

Oreonectes guananensis

Not Evaluated freshwater

Oreonectes luochengensis

Not Evaluated freshwater

Oreonectes microphthalmus

Not Evaluated freshwater