interspinalum, Glyptosternon Mai [D. Y.] 1978:271, Fig. 120 [Identification of the fresh-water fishes of North Viet Nam v. 1; ref. 13511] Creeks in northern Vietnam [possibly Cho Don district, Bac Kan Province]. DVZUT uncat. [lost]. Type catalog: Ferraris 2007:390 [ref. 29155]. The gender of Glyptothorax is masculine, but interspinalum treated here as a compound noun in apposition (noun phrase, ICZN Art. 31..2.1) and should not be declined. •Valid as Glyptothorax interspinalus (Mai 1978) -- (Ferraris 2007:390 [ref. 29155], Ng & Rainboth 2008:65 [ref. 29764], Ng & Freyhof 2008:20 [ref. 29810], Ng & Hadiaty 2009:67 [ref. 30166], Zhang et al. 2016:173 [ref. 34477], Endruweit 2025:199 [ref. 42401]). •Valid as Glyptothorax interspinalum (Mai 1978) -- (Zhu 1995:154 [ref. 25213], Burgess & Finley 1996:165 [ref. 22901], Chu in Chu et al. 1999:151 [ref. 24534], Kottelat 2001:54 [ref. 25482] with some question, Kottelat 2001:136 [ref. 25780], Thomson & Page 2006:48 [ref. 28859], Ng & Kottelat 2017:415 [ref. 35173], Ng & Kottelat 2023:368 [ref. 40091], Ng & Kottelat 2023:1342 [ref. 40534], Zeng et al. 2026:23 [ref. 42730]). Current status: Valid as Glyptothorax interspinalum (Mai 1978). Sisoridae: Sisorinae. Distribution: Southeast Asia: upper Red, Ma and Ca River basins (northeastern Laos, northern Vietnam and southern China). Habitat: freshwater.