Baseodiscus princeps

• Main Authors: Kajihara, Hiroshi, Abukawa, Shushi, Chernyshev, Alexei V.
• Format: Other/Unknown Material
• Language: unknown
• Published: 2022
• Subjects: Biodiversity; Taxonomy; Animalia; Nemertea; Pilidiophora; Heteronemertea; Valenciniidae; Baseodiscus; Baseodiscus princeps; Cape Fox; Orca; Yakutat; Alaska
• Online Access: https://zenodo.org/record/7043861; https://doi.org/10.5281/zenodo.7043861

BASEODISCUS CF. PRINCEPS (COE, 1901A) (FIG. 3O–Q) Baseodiscus curtus: Yamaoka, 1940: 234–236, textfig. 13, pl. XVI, figs 8–11 (Akkeshi, Japan). Baseodiscus princeps: Iwata, 1954: 15; Kajihara, 2017: 423, fig. 16.2e (Akkeshi, Japan). Baseodiscus cf. princeps: Chernyshev, 2008: 271, fig. 1F–I (Amursky Bay, Russia). ? Taeniosoma princeps Coe, 1901a: 173–177, pl. XVI, figs 1–3, pl. XVIII, fig. 6 (Alaska). Material examined: Three specimens. ICHUM 6339, extracted DNA and remaining body preserved in 99% EtOH; 12 June 2012, intertidal, under boulder, Daikoku-jima (42°57′39″N, 144°52′31″E), Hokkaido, Japan, collected by H. Kajihara. One specimen (DNA voucher: ICHUM 6340), 8 July 2011, off Iturup Island (44°53.05′N, 147°15.18′), 114 m depth, collected by A. V. Chernyshev during cruise 41 of the S/ V Akademik Oparin. One specimen (DNA voucher ICHUM 6341), 25 July 2005, Aniwa Bay (46°06.9′N, 142°15.7′E), 25 m depth, collected by A. V. Chernyshev during cruise 31 of the S/ V Akademik Oparin. Sequences: From ICHUM 6339: LC178604, 18S (1785 bp); LC178636, 28S (2119 bp); LC178685, 16S (503 bp); LC190957, COI (658 bp). From ICHUM 6340: LC178605, 18S (1797 bp); LC178637, 28S (2090 bp); LC178686, 16S (503bp); LC190958, COI (658bp). From ICHUM 6341: LC178606, 18S (1796 bp); LC178638, 28S (1202 bp); LC178687, 16S (503 bp); LC190959, COI (658 bp). Description: Background body colour bright yellow, dorsally mottled with irregular, light-brown patches often intensively fused together, especially in anterior part of body; dorsal mottling may extend ventrolaterally or even ventrally; body up to 30 cm long (Fig. 3O–Q). D i s t r i b u t i o n: N o r t h - w e s t Pa c i f i c: i n t e r t i d a l, Akkeshi, Hokkaido, Japan (Yamaoka, 1940; present study); subtidal, Far East Russia, Aniwa Bay (25 m) and off Iturup (114 m) (present study). Baseodiscus princeps s.s. was originally described from Alaska (Cape Fox, Yakutat, Orca), USA (Coe, 1901a). Remarks: This species was first reported as Baseodiscus curtus by Yamaoka (1940) from ...