nigeli, Ilyophis Shcherbachev [Yu. N.] & Sulak [K. J.] in Sulak & Shcherbachev 1997:1172, Figs. 1C, 2B, 4C [Bulletin of Marine Science v. 60 (no. 3); ref. 22986] Pacific slope off Japan, 42°27'N, 144°27'E, depth 1160 meters. Holotype: ZIN 45274. Paratypes: USNM 339093 [ex ZIN 42575] (1); ZIN 45767 (1), 48481-83 (1, 2, 1), 49224 (1); ZMMU P-17952 (1). Type catalog: Vasil'eva et al. 2001:16 [ref. 25714]. •Valid as Ilyophis nigeli Shcherbachev & Sulak 1997 -- (Parin et al. 2014:48 [ref. 33547], Tashiro & Chen 2022:4 [ref. 39512], Tighe et al. 2024:52 [ref. 41546]). Current status: Valid as Ilyophis nigeli Shcherbachev & Sulak 1997. Synaphobranchidae: Ilyophinae. Distribution: Western North Pacific: Japan and Sea of Okhotsk. Habitat: marine.