toyamensis, Ricuzenius (Alloricuzenius) Matsubara [K.] & Iwai [T.] 1951:87, Figs. 1-3 [Miscellaneous Reports of the Research Institute for Natural Resources (Tokyo) Nos 19-21; ref. 2909] Off Uozu, Japan. Holotype: FAKU 14450 (not seen in 1997). Paratypes: FAKU 14451-57 (7, not seen in 1997). •Valid as Ricuzenius toyamensis Matsubara & Iwai 1951 -- (Watanabe 1960:22 [ref. 11959], Yabe in Masuda et al. 1984:324 [ref. 6441], Lindberg & Krasyukova 1987:186 [ref. 15964]). •Valid as Icelus toyamensis (Matsubara & Iwai 1951) -- (Nakabo 2000:633 [ref. 25086], Nakabo 2002:633, 1525 [ref. 26001], Tsuruoka et al. 2006:51 [ref. 28501], Shinohara et al. 2011:44 [ref. 31715], Song et al. 2012:304 [ref. 36295], Shinohara et al. 2014:250 [ref. 33330], Kim et al. 2020:103 [ref. 39118]). •Synonym of Icelus rastrinoides Taranetz 1936 -- (Kai et al. 2023:16 [ref. 39903]). Current status: Synonym of Icelus rastrinoides Taranetz 1936. Psychrolutidae. Habitat: marine.