matsubarai, Lethenteron Vladykov [V. D.] & Kott [E.] 1978:1793, Figs. 1-2, 4a, 5a, 6a [Canadian Journal of Zoology v. 56 (no. 8); ref. 8867] Shokotsu River, Hokkaido Island, Japan, 44°22'N, 143°20'E. Holotype: UBC 77-71. Paratypes: (6). •Valid as Lethenteron matsubarai Vladykov & Kott 1978 -- (Holčík 1986:227 [ref. 24819]). •Synonym of Lethenteron kessleri (Anikin 1905) -- (Renaud 2011:22 [ref. 31770] with question). •Synonym of Lethenteron mitsukurii (Hatta 1901) -- (Naseka & Renaud 2020:38 [ref. 37921]). Current status: Synonym of Lethenteron mitsukurii (Hatta 1901). Petromyzontidae. Habitat: freshwater.