The Lobodontini tribe of true seals (Phocidae), collectively known as the lobodontine seals, consist of four species of seals in four genera: the crabeater seal (Lobodon carcinophaga), the leopard seal (Hydrurga leptonyx), the Weddell seal (Leptonychotes weddelli) and the Ross seal (Ommatophoca rossii). All lobodontine seals have circumpolar distr...