New and rare bivalve species for the fauna of the Kuril Islands (northwestern Pacific Ocean): A study of materials collected over 70 years of expeditions (from 1949 to 2019) Author Lisitsyna, Kseniya N. 0000-0001-6408-6796 A. V. Zhirmunsky National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, Palchevskogo Street, 17, Vladivostok 690041, Russia. lisitsina_ksenia_1997@mail.ru Author Kamenev, Gennady M. A. V. Zhirmunsky National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, Palchevskogo Street, 17, Vladivostok 690041, Russia. text Zootaxa 2024 2024-10-15 5523 2 231 253 http://dx.doi.org/10.11646/zootaxa.5523.2.6 journal article 10.11646/zootaxa.5523.2.6 1175-5326 13934243 CCD8C83F-4132-43C2-90E1-462FEB07ED34 Adontorhina cyclia S. S. Berry, 1947 ( Fig. 4 G, H ) Adontorhina cyclia S. S. Berry, 1947: 260–261 , pl. 1, figs 1–2. Material examined : four specimens from the sea slope of the Kunashir , Paramushir , and Atlasova Islands ( 200–805 m ) . Distribution : Sea of Japan ; off Japan (Pacific Ocean); Sea of Okhotsk; Kuril Islands; Commander Islands; Bering Sea; Alaska; to Baja California; Gulf of California (12– 2,770 m ) ( Scott 1986 ; Kamenev 1995 , 1996 , 2013 ; Coan, Valentich-Scott & Bernard 2000 ; Kantor & Sysoev 2005 ; Coan & Valentich-Scott 2012 ; Kamenev & Lisitsyna 2024 ). Remarks: This species, widely distributed in the North Pacific, has been recorded from the region of the Kuril Islands for the first time ( Kamenev & Lisitsyna 2024 ).