Thunnus orientalis, Pacific bluefin tuna, found widely in the northern Pacific Ocean and locally in the south.
Thunnus tonggol, longtail tuna, found in tropical Indo-West Pacific waters.
Thunnus thynnus, Atlantic bluefin tuna, found in both the western and eastern Atlantic Ocean, and also
in the Mediterranean Sea.
A member of a species of tuna, Thunnus genus, having blue fins, including
Thunnus maccoyii, southern bluefin tuna.