Species that contain: Muraenichthys and aoki [ 4 ] records

aoki, Muraenichthys Jordan [D. S.] & Snyder [J. O.] 1901:863, Fig. 13 [Proceedings of the United States National Museum v. 23 (no. 1239); ref. 2508] Rock pool at Misaki, Japan. Holotype (unique): CAS-SU 6474. Type catalog: Böhlke 1953:49 [ref. 12291]. •Synonym of Muraenichthys gymnotus Bleeker 1857 -- (McCosker 1970:508 [ref. 2931]). •Valid as Muraenichthys aoki Jordan & Snyder 1901 -- (Nakabo 2000:216 [ref. 25086], Nakabo 2002:216 [ref. 26001]). •Synonym of Scolecenchelys gymnota (Bleeker 1857) -- (Castle & McCosker 1999:121 [ref. 24075] as gymnotus). •Valid as Scolecenchelys aoki (Jordan & Snyder 1901) -- (Hibino et al. 2012:180 [ref. 32443], Hibino et al. 2013:45 [ref. 32418], Ji et al. 2013:591 [ref. 36298], Hibino & Kimura 2015:5 [ref. 33951], Kim et al. 2020:55 [ref. 39118], Sonoyama et al. 2020:18 [ref. 37637], Ji et al. 2021:245 [ref. 39406]). Current status: Valid as Scolecenchelys aoki (Jordan & Snyder 1901). Ophichthidae: Myrophinae. Distribution: Northwestern Pacific: Japan and Korea. Habitat: marine.

borealis, Muraenichthys Machida [Y.] & Shiogaki [M.] 1990:1, Figs. 1-3 [Japanese Journal of Ichthyology v. 37 (no. 1); ref. 16608] Tairadate, Mutsu Bay, Aomori Prefecture, northernmost District of Hanshu, Japan, depth 50-60 meters. Holotype: BSKU 45367. Paratypes: BSKU 45365-66 (1, 1), 45368-70 and 72-73 (5), 45371 (1, c&s); NSMT-P 30813 (1). •Valid as Muraenichthys borealis Machida & Shiogaki 1990 -- (Machida & Ohta 1996:79 [ref. 22154], Nakabo 2000:216 [ref. 25086], Nakabo 2002:216 [ref. 26001]). •Valid as Scolecenchelys borealis (Machida & Shiogaki 1990) -- (Castle & McCosker 1999:121 [ref. 24075], Hoshino et al. 2011:184 [ref. 31273]). •Synonym of Scolecenchelys aoki (Jordan & Snyder 1901) -- (Hibino et al. 2012:180 [ref. 32443], Ji et al. 2013:591 [ref. 36298], Hibino & Kimura 2015:5 [ref. 33951]). Current status: Synonym of Scolecenchelys aoki (Jordan & Snyder 1901). Ophichthidae: Myrophinae. Habitat: marine.

japonicus, Muraenichthys Machida [Y.] & Ohta [S.] 1993:323, Figs. 2-5 [Japanese Journal of Ichthyology v. 40 (no. 3); ref. 21006] Sea of Japan, off Mishima, Yamaguchi Prefecture, southwestern Japan, 34°58.08'-34°58.11'N, 131°04.87'-131°05.06'E, depth 74-78 meters. Holotype (unique): BSKU 81581. •Valid as Muraenichthys japonicus Machida & Ohta 1993 -- (Machida & Ohta 1996:79 [ref. 22154], Nakabo 2000:215 [ref. 25086], Nakabo 2002:215 [ref. 26001]). •Valid as Scolecenchelys japonica (Machida & Ohta 1993) -- (Castle & McCosker 1999:121 [ref. 24075], Hibino et al. 2012:182 [ref. 32443], Hibino et al. 2013:45 [ref. 32418]). •Synonym of Scolecenchelys aoki (Jordan & Snyder 1901) -- (Hibino & Kimura 2015:5 [ref. 33951]). Current status: Synonym of Scolecenchelys aoki (Jordan & Snyder 1901). Ophichthidae: Myrophinae. Distribution: Western North Pacific: Japan (if valid). Habitat: marine.

okamurai, Muraenichthys Machida [Y.] & Ohta [S.] 1996:77, Fig. 1 [Memoirs of the Faculty of Science, Kochi University (Ser. D) (Biology) v. 16/17; ref. 22154] Pacific east of Cape Daioh, Mie Prefecture, western Honshu, Japan, 34°15'N, 136°55'E, depth 62-63 meters. Holotype: BSKU 82152. Paratypes: BSKU 82153 (1). •Valid as Muraenichthys okamurai Machida & Ohta 1996 -- (Nakabo 2000:216 [ref. 25086], Nakabo 2002:216 [ref. 26001]). •Valid as Scolecenchelys okamurai (Machida & Ohta 1996) -- (Castle & McCosker 1999:121 [ref. 24075]). •Synonym of Scolecenchelys borealis (Machida & Shiogaki 1990) -- (Hoshino et al. 2011:184 [ref. 31273]). •Synonym of Scolecenchelys aoki (Jordan & Snyder 1901) -- (Hibino et al. 2012:180 [ref. 32443], Ji et al. 2013:591 [ref. 36298], Hibino & Kimura 2015:5 [ref. 33951]). Current status: Synonym of Scolecenchelys aoki (Jordan & Snyder 1901). Ophichthidae: Myrophinae. Habitat: marine.