* Oarfish
* Orange roughy
* Opisthonema oglinum (Atlantic thread herring)
* Oncorhynchus (Pacific salmon)
* Oreochromis (African cichlids)
* Ophichthus (snake eels)
* Osmerus (smelts)
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What are some fish that begin with the letter O?
* Ocean sunfish
* Oarfish * Orange roughy * Opisthonema oglinum (Atlantic thread herring) * Oncorhynchus (Pacific salmon) * Oreochromis (African cichlids) * Ophichthus (snake eels) * Osmerus (smelts) |