matsubarai, Polyipnus Schultz [L. P.] 1961:641, Fig. 17 [Proceedings of the United States National Museum v. 112 (no. 3449); ref. 10156] Kumano-Nada, Japan. Holotype: USNM 179793. Paratypes: FAKU 109533 (3), USNM 179794 (1). •Valid as Polyipnus matsubarai Schultz 1961 -- (Yamamoto in Okamura et al. 1982:77, 326 [ref. 8256], Fujii in Masuda et al. 1984:47 [ref. 6441], Aizawa 1990:97 [ref. 20451], Harold 1994:477 [ref. 21941], Harold 1999:1902 [ref. 24741], Nakabo 2000:317 [ref. 25086], Shinohara et al. 2001:297 [ref. 25995], Nakabo 2002:317 [ref. 26001], Shinohara et al. 2005:405 [ref. 28370], Mundy 2005:170 [ref. 28379], Parin et al. 2014:146 [ref. 33547], Fricke et al. 2019:61 [ref. 36673], Kim et al. 2021:72 [ref. 39117]). Current status: Valid as Polyipnus matsubarai Schultz 1961. Sternoptychidae: Sternoptychinae. Distribution: Western and central Pacific: Japan, Philippine Sea, Hawaiian-Emperor seamounts (Hawaiian Ridge). Habitat: marine.