saikaiensis, Ventrifossa Okamura [O.] in Okamura & Kitajima 1984:209, Pl. 147 [Fishes of the Okinawa Trough and the adjacent waters; ref. 8057] Okinawa Trough, 28°50.0'N, 127°14.0'E, depth 700-740 meters. Holotype: BSKU 28004. Paratypes: BSKU 26324 (1), 27576-79 (4), 27664-65 (2), 28005-08 (4). •Valid as Ventrifossa saikaiensis Okamura 1984 -- (Iwamoto in Cohen et al. 1990:296 [ref. 18936], Nakabo 2000:423 [ref. 25086], Nakabo 2002:423 [ref. 26001], Chiou et al. 2004:48 [ref. 27691], Shinohara et al. 2005:418 [ref. 28370], Jeong et al. 2010:318 [ref. 36293], Iwamoto & McCosker 2014:282 [ref. 33298], Iwamoto et al. 2015:116 [ref. 35408], Nakayama 2020:310 [ref. 37888]). Current status: Valid as Ventrifossa saikaiensis Okamura 1984. Macrouridae. Distribution: Western North Pacific: Okinawa Trough, South China Sea and Taiwan. Habitat: marine.