Complex sentence: Along with all of the other earless seals, it belongs to the family Phocidae, is in the tribe of lobodontini seals, and is the only species in the genus "Hydrurga".
Split into simpler sentences: Along with all of the other earless seals, it belongs to the family Phocidae. It is in the tribe of lobodontini seals, and is the only species in the genus "Hydrurga".