| Summary: | Buccinum hasegawai sp. nov. urn:lsid:zoobank.org:act: 2CEE5E56-6C96-445E-91ED-D5E8E30B928F Figs 4, 6A–C; Table 1 Buccinum ( Buccinum ) bombycinum – Golikov 1980: 327, figs 85, 183, 391, 1 pl. XXXI, 1a–1k (part.) (non Dall 1907). Bathybuccinum ( Ovulatibuccinum ) bombycinum – Golikov & Sirenko 1988: 87 (non Dall 1907). Bathybuccinum bombycinum – Golikov & Sirenko 1998: 122, fig. 12b; Kantor & Sysoev 2006:160, pl. 74c (non Dall, 1907). ? Buccinum sp. cf. bulimuloideum – Okutani 1964: 414, pl. II fig.12 (non Dall 1907). Bathybuccinum sp.1 — Sirenko et al . 2013:159. Diagnosis Shell reaching 18.5 mm in length, thin, oval to elongate-oval, smooth. Axial sculpture only of thin growth lines, spiral sculpture absent. Operculum thin, small, less than ¼ of AL, with nucleus notably shifted towards lower outer edge. Etymology Named in honour of Dr Kazunori Hasegawa, Japanese malacologist whose studies made a significant contribution to the systematics of the deep-sea gastropods of Japan and the Pacific. Type material Holotype KURILE ISLANDS • lv; South-east of Simushir I.; 46°40.6′ N, 151°58.4′ E; depth 436 m; R/V Akademik Oparin, cruise 56, stn 19; ZIN 62775, Buc274. Paratypes KURILE ISLANDS • 1 lv (paratype 1, SL 14.8 mm); same collection data as for holotype; ZIN 62902, Buc276 • 1 lv (paratype 2, SL 14.7 mm); Okhotsk Sea, Urup I.; 46°15.9′ N, 150°15.4′ E; depth 450–460 m; R/V Oparin, cruise 56, stn 24; MIMB 42300, Buc273 • 8 lv (SL 9.0– 16.2 mm); Iturup I.; 44°20.8′ N, 148°24.0′ E; depth 414 m; Kurile-Sakhalin Expedition, F/T Toporok, stn 101; 14 Sep 1949; ZIN 26228 • 7 lv; Iturup I.; 44°52′ N, 149°27.7′ E; depth 910–920 m; R/V Odyssey; 25 Jul. 1984; ZIN 48100. Other material examined Sequenced material Holotype, paratypes 1, 2 (see above on localities). Not-sequenced material KURILE ISLANDS • 1 lv (SL 16.5 mm); Shikotan I.; 43°37′ N, 147°19′ E; depth 400 m; R/V Tikhookeanskyi; 11 Jul. 1987; ZIN 62780 • 1 lv (SL 16.0 mm); Iturup I.; 44°05.7′ N, 148°05.4′ E; depth 500 m; R/V Tikhookeanskiy; 10 Aug. ...
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