<Tr> <Th> Excluded groups </Th> </Tr> <Tr> <Td> <Dl> <Dd> Hydrozoa--hydrozoans </Dd> <Dd> Polypodiozoa--a parasite of certain fish eggs </Dd> </Dl> </Td> </Tr> <Dl> <Dd> Hydrozoa--hydrozoans </Dd> <Dd> Polypodiozoa--a parasite of certain fish eggs </Dd> </Dl> <Dd> Hydrozoa--hydrozoans </Dd>

What kind of jellyfish are in the pacific ocean