microstoma, Homaloptera Boulenger [G. A.] 1899:228 [Annals and Magazine of Natural History (Series 7) v. 4 (no. 21) (art. 21); ref. 553] Akar River, Sarawak state, Borneo, East Malaysia. Holotype (unique): BMNH 1895.7.2.49. •Valid as Parhomaloptera microstoma (Boulenger 1899) -- (Kottelat et al. 1993:56 [ref. 23448], Kottelat & Lim 1996:237 [ref. 23210], Doi 1997:19 [ref. 22832] as Parahomaloptera, Martin-Smith & Tan 1998:587 [ref. 23647], Parenti & Lim 2005:189 [ref. 28285], Kottelat 2012:67 [ref. 32367], Kottelat 2013:195 [ref. 32989], Sulaiman et al. 2018:32 [ref. 35802], Wilkinson & Tan 2018:601 [ref. 36226]). Current status: Valid as Parhomaloptera microstoma (Boulenger 1899). Gastromyzontidae. Distribution: Northern Borneo. Habitat: freshwater.