megalomycter, Aperioptus Vaillant [L. L.] 1902:145, Figs. 42-45 [Notes from the Leyden Museum v. 24 (note 1); ref. 4490] Kapuas River, Borneo. Lectotype: RMNH 7777. Paralectotypes: MNHN 1902 [or 1903]-0202 (2); RMNH 26610 [ex RMNH 7777] (1). Type catalog: Bertin & Estève 1948:105 [ref. 19574] as paratype. Lectotype selected by Roberts 1972 [ref. 12567]. •Valid as Ellopostoma megalomycter (Vaillant 1902) -- (Roberts 1989:103 [ref. 6439], Kottelat et al. 1993:51 [ref. 23448], Bănărescu & Nalbant 1995:460 [ref. 23187], Doi 1997:18 [ref. 22832], Tan & Lim 2002:456 [ref. 26708], Kottelat & Widjanarti 2005:156 [ref. 28284], Bohlen & Šlechtová 2009:157 [ref. 30419], Kottelat 2012:43 [ref. 32367]). Current status: Valid as Ellopostoma megalomycter (Vaillant 1902). Ellopostomatidae. Distribution: Peninsular Malaysia and western Borneo (Indonesia). Habitat: freshwater.