Systematics of the western Pacific "giant" dog-whelks referred to Nucella elongata, Nucella heyseana, and Nucella lamellosa (Muricidae, Gastropoda) - Chichvarkhin A.Y. & Chichvarkhina O.V. (Mollusks of the eastern Asia and adjacent seas, Abstracts of the conference, Vladivostok, 6-8 October 2014, 2014)