List of species of the sea cucumbers in the Far-Eastern seas of Russia: the order Synaptida (=Apodida) Cuénot, 1891 (Holothuroidea: Synaptida)
Species composition of the order of apodalsea cucumbers (Synaptida) in the Far-Eastern seas of Russia is given in accordance with modern nomenclature of the mentioned order. For every species of sea cucumbers we provided synonymy, info about distribution in the Bering, Okhotsk seas, Sea of Japan, at south-eastern Kamchatka and Kuril Islands. Some species are illustrated by original pictures of zooms appearance.