gertrudae, Pseudomugil Weber [M.] 1911:23, Pl. 1 (fig. 4); Figs. 2-3 [Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft Frankfurt-a.-M. v. 34 (no. 1); ref. 14827] Rivulet in sago forest at Ngaiguli, Terangan, Aru Island, Aru Islands, Maluku, Indonesia. Lectotype: ZMA 103196. Paralectotypes: (45) NMBA 2753-54 (2); SMF 10008-13 (1, 5, 8, 14, 7, 22); ZMA 103196 (now 5). Type catalog: Hoedeman 1960:213 [ref. 19258] but wrongly with a holotype; Nijssen et al. 1982:75 [ref. 19236], Kottelat & Sutter 1988:56 [ref. 13796]. Lectotype established by Nijssen et al. 1982:75 [ref. 19236]. •Valid as Pseudomugil gertrudae Weber 1911 -- (Roberts 1978:52 [ref. 8886], Allen & Cross 1982:128 [ref. 6251], Paxton et al. 1989:352 [ref. 12442], Saeed et al. 1989:758 [ref. 13533], Larson & Martin 1990:30 [ref. 16606], Allen 1991:99 [ref. 21090], Pusey et al. 2000:72 [ref. 24466], Unmack 2001:1062 [ref. 25797], Allen et al. 2002:164 [ref. 25930], Allen et al. 2006:697 [ref. 29004], Allen et al. 2008:100 [ref. 30265], Larson et al. 2013:61 [ref. 32988], Larson et al. 2013:61 [ref. 32988], Allen et al. 2016:951 [ref. 34423], Pusey et al. 2017:42 [ ref. 35250], Hammer et al. 2024:2159 [ref. 41593]). Current status: Valid as Pseudomugil gertrudae Weber 1911. Pseudomugilidae. Distribution: Northern Australia, southern New Guinea, Aru Islands and Tiwi Islands. Habitat: freshwater.