<Tr> <Th> Earth's oceans </Th> </Tr> <Tr> <Td> <Ul> <Li> Arctic </Li> <Li> Atlantic </Li> <Li> Indian </Li> <Li> Pacific </Li> <Li> Southern </Li> </Ul> </Td> </Tr> <Ul> <Li> Arctic </Li> <Li> Atlantic </Li> <Li> Indian </Li> <Li> Pacific </Li> <Li> Southern </Li> </Ul> <Tr> <Td> World Ocean </Td> </Tr>

Blank is the largest ray in the ocean