Ruthenica, 2022, vol. 32, No. 2: 81-84. Published online April 1, 2022. © Ruthenica, 2022 http: ruthenica.net Новый вид рода Boreotrophon P. Fischer, 1884 (Gastropoda, Muricidae, Pagodulinae) из Японского моря И.П. БОНДАРЕВ Институт биологии южных морей имени А.О. Ко- валевского РАН, 299011, Проспект Нахимова,2, Севастополь, РОССИЙСКАЯ ФЕДЕРАЦИЯ. E-mail: igor.p.bondarev@gmail.com РЕЗЮМЕ. Описан и иллюстрирован Boreotrophon oparini sp. nov., обнаруженный в Японском море у Приморского края России. Типовой материал был отобран с глубин 40 м (голотип) и 110 м (паратип) в 64-й экспедиции НИС «Академик Опарин». B. oparini sp. nov. сравнивается с симпатрическим B. candelabrum и другими родственными видами. Introduction Gastropods of the genus Boreotrophon P. Fischer, 1884 are characteristic representatives of the mol- luscan fauna of the boreal and arctic zoogeographic regions. Boreotrophon species have been studied by taxonomists for centuries; the species variability has been fairly well studied and illustrated in original de- scriptions and in monographic publications [Egorov, 1993; Habe, Ito, 1965; Houart, 1981, 1995; Houart et al., 2019; Kantor, Sysoev, 2006]. In the meantime, researchers discover and describe new primarily small-sized species of Boreotrophon, mainly from bathyal and abyssal zones [Houart et al., 2019]. The discovery of a new Boreotrophon species with a rather large shell (HS up to 46.2 mm) at moderate depth (40–110 m) in a well-studied area of the Sea of Japan, Russian Maritime Territory (Primorye) in the course of the 64th expedition of R/V Akademik Oparin (2021) came as a surprise. B. candelabrum (Reeve, 1848) was recorded earlier from the Pri- morye region [Egorov, 1993] and B. alaskanus Dall, 1902 [Egorov, 1993; Habe, Ito, 1965: pl. 10, fg. 17 (only)] from the northern part of the Sea of Japan. However, this last name has often been used erroneously [Egorov, 1993, Habe, Ito 1965 (in part, pl. 10, fgs 12, 16)] for B. alborostratus Taki, 1938 [Houart et al., 2019]. Both species B. candelabrum and B. alborostratus were also sampled in the 64th expedition of R/V Akademik Oparin in the Primorye region and used for comparison with the new species. Material and methods The type material was collected at a depth of 40 m, near Vladimir Bay (holotype) and at 110 m, near Olga Bay (paratype) off Russian Maritime Territory in the western part of the Japan Sea (Fig. 1) in June- July 2021 with a small Sigsby trawl from the board of R/V Akademik Oparin. The characters used here to describe the shell morphology refer to the general aspects of the shell: the shape, size, color, spire characteristics, number and shape of the teleoconch whorls, details of the suture, axial and spiral sculpture, the shape and color of aperture, siphonal canal and operculum, and follow Houart et al. [2019]. The measurements accuracy equals 0.1 mm. The holotype is deposited in the Zoological Museum of Moscow State University; the paratype is deposited in the A.O. Kovalevsky Institute of Biology of the Southern Seas of RAS (Sevastopol, Russia) collection. A new species of Boreotrophon P. Fischer, 1884 (Gastropoda, Muricidae, Pagodulinae) from the Sea of Japan I.P. BONDAREV A.O. Kovalevsky Institute of Biology of the Southern Seas of RAS, Sevastopol, 299011, Nakhimov Avenue 2, Sevastopol, RUSSIA. E-mail:igor.p.bondarev@gmail.com ABSTRACT. Boreotrophon oparini sp. nov., found in the Sea of Japan, off Russian Maritime Territory, is described and illustrated. The type material was sampled at a depth of 40 m (holotype) and 110 m (paratype) during the 64th expedition of R/V Akademik Oparin. Boreotrophon oparini sp. nov. is compared with the sympatric B. candelabrum and other congeneric species. https://doi.org/10.35885/ruthenica.2022.32(2).4 Zoobank registration: urn:lsid:zoobank.org:pub:EE14DA85-8354-4AB7-88C0-8BA76075C069