sumatranus, Periophthalmus variabilis Eggert [B.] 1935:65, Pl. 4 (figs. 14-15); Fig. 6 [Zoologische Jahrbücher, Abteilung für Systematik, Geographie und Biologie der Tiere (Jena) v. 67; ref. 13880] Belawan, Sumatra, Indonesia; Padang; Java, Indonesia. Syntypes: PMJ 722 (4), 731 (5), 756 (8), 1091 (1), possibly Universität Tübingen (possible destroyed in WWII). Comments on types for Periophthalmus variabilis, subspecies sumatranus Eggert 1935: Konstantinidis et al. 2016:[5] [ref. 34503]. •Synonym of Periophthalmus novemradiatus (Hamilton 1822) -- (Murdy 1989:43 [ref. 13628]). •Synonym of Periophthalmus variabilis Eggert 1935 -- (Jaafar et al. 2009:311 [ref. 30170], Kottelat 2013:420 [ref. 32989]). Current status: Synonym of Periophthalmus variabilis Eggert 1935. Oxudercidae: Oxudercinae. Habitat: brackish, marine.