geminus, Neostethus Parenti [L. R.] 2014:177, Figs. 2, 3A, 3b, 4C, 5A [Raffles Bulletin of Zoology v. 62; ref. 33268] Tutong District, Sg. Birau, tributary of Sg. Tutong, just above where it enters Sg. Tutong, east of Bandar Tutong, 4°48'0"N, 114°40'38"E, Brunei Darussalam. Holotype: USNM 409956. Paratypes: BMNH 2013.5.10.2-4 (3), CAS, FMNH, MCZ, USNM, ZRC. Plus non-type specimens. •Valid as Neostethus geminus Parenti 2014 -- (Sulaiman et al. 2018:45 [ref. 35802]). Current status: Valid as Neostethus geminus Parenti 2014. Phallostethidae. Distribution: Brunei Darussalam, Borneo. Habitat: freshwater.