trewavasae, Phenacostethus Parenti [L. R.] 1986:226, Figs. 1-3, 4b [Proceedings of the California Academy of Sciences (Series 4) v. 44 (no. 10); ref. 5192] Sungei Kejin Tugang, 3°41'30"N [or 0°41'30"], 114°27'15"E, tributary of Sungei Kejin, Baram River, Sarawak, East Malaysia, depth to 1 meter. Holotype: ROM 41826. Paratypes: AMNH 55570 (5); BMNH 1984.7.12.1-5 (5, now 4); CAS 55454 (5, 1 c&s); ROM 41827 (1), 41829-30 (1, 13), 44289 (19), ROM CS 812 (3, c&s); USNM 267266 (5). Kottelat (2013) states that latitute was 0°41'30"N. •Valid as Phenacostethus trewavasae Parenti 1986 -- (Parenti 1989:268 [ref. 13486], Kottelat et al. 1993:96 [ref. 23448], Kottelat & Lim 1996:244 [ref. 23210], Parenti 1996:704 [ref. 22231], Parenti 1999:2148 [ref. 24784], Kulabtong et al. 2012:159 [ref. 32364], Kottelat 2013:285 [ref. 32989], Parenti 2014:178 [ref. 33268], Sulaiman et al. 2018:45 [ref. 35802], Parenti et al. 2023:561 [ref. 40527]). Current status: Valid as Phenacostethus trewavasae Parenti 1986. Phallostethidae. Distribution: Southeast Asia: Malaysian Borneo, Sarawak and Brunei. Habitat: freshwater.