Propebela tersa is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae. Description The length of the shell varies between 6 mm and 12 mm. Distribution This species occurs in the Okhotsk Sea.and the Sea of Japan. References Kantor Yu.I. & Sysoev A.V. (2006) Marine and brackish water Gastropoda of Russia and adjacent countries: an illustrated catalogue. Moscow: KMK Scientific Press. 372 pp. + 140 pls Hasegawa K. (2009) Upper bathyal gastropods of the Pacific coast of northern Honshu, Japan, chiefly collected by R/V Wakataka-maru. In: T. Fujita (ed.), Deep-sea fauna and pollutants off Pacific coast of northern Japan. National Museum of Nature and Science Monographs 39: 225–383. External links P Bartsch. "The Nomenclatorial Status of Certain Northern Turritid Mollusks"; Proceedings of the biological Society of Washington 54, 1-14, 1941 tersa Gastropods described in 1941