Kingdom [Animalia] Linnaeus, 1758 - animals Subkingdom Metazoa Haeckel, 1874 see Kingdom Animalia Linnaeus, 1758 Division Eumetazoa Butschli, 1910 see Subkingdom Eumetazoa Butschli, 1910 Subdivision Bilateralia Phylum Echinodermata Bruguière, 1789 - echinoderms Class Holothuroidea (de Blainville, 1834) - sea cucumbers Order Aspidochirota see Order Aspidochirotida Brandt, 1835 Suborder Pelagothuridida Family Planctothuriidae see Family Pelagothuriidae Ludwig, 1893