waltoni, Periophthalmus Koumans [F. P.] 1941:288 [Memoirs of the Indian Museum v. 13 (pt 3); ref. 2677] Iraq and Pakistan. Syntypes: RMNH 17004 (2), ZSI (4, not found). •Valid as Periophthalmus waltoni Koumans 1941 -- (Murdy 1989:44 [ref. 13628], Coad 1991:27 [ref. 15702], Coad 1995:31 [ref. 23608], Randall 1995:341 [ref. 22896], Coad 1996:7 [ref. 23831], Coad 1996:71 [ref. 25297], Carpenter et al. 1997:213 [ref. 23922], Coad 1998:103 [ref. 23869], Manilo & Bogorodsky 2003:S118 [ref. 27377], Larson & Takita 2004:184 [ref. 28075], Jaafar & Larson 2008:951 [ref. 29863], Esmaeili et al. 2010:378 [ref. 33391], Murdy 2011:105 [ref. 31728], Ghanbarifardi et al. 2014:133 [ref. 33435], Jouladeh-Roudbar et al. 2015:899 [ref. 34062], Esmaeili et al. 2015:123 [ref. 35030], Esmaeili et al. 2017:84 [ref. 35254], Murdy & Jaafar 2017:28 [ref. 35561], Ali et al. 2018:337 [ref. 36183], Esmaeili et al. 2018:65 [ref. 36089], Eagderi et al. 2019:66 [ref. 37020], Esmaeili et al. 2019:[6] [ref. 37285], Jouladeh-Roudbar et al. 2020:240 [ref. 37983], Parenti 2021:394 [ref. 38603], Larson 2022:175 [ref. 39971], Çiçek et al. 2023:28 [ref. 40616], Çiçek et al. 2024:322 [ref. 40789]). Current status: Valid as Periophthalmus waltoni Koumans 1941. Oxudercidae: Oxudercinae. Distribution: Northwestern Indian Ocean: Persian Gulf and Gulf of Oman east to Pakistan. Habitat: freshwater, brackish, marine.