Kingdom Animalia Linnaeus, 1758 - animals Phylum Echinodermata Bruguière, 1789 - echinoderms Subphylum Eleutherozoa Bell, 1891 Class Holothuroidea (de Blainville, 1834) - sea cucumbers Subclass Apodacea Genus Leptosynapta Verrill, 1867