Class [Mammalia] Linnaeus, 1758 - mammals Order Pinnipedia Illiger, 1811 - seals, sea lions, and walrus see Parvorder Pinnipedia Illiger, 1811 Family Phocidae Gray, 1821 - true seals Genus Monachus Fleming, 1822 - monk seals ‡Monachus tropicalis (Gray, 1850) - Caribbean monk seal