viganensis, Gobius Steindachner [F.] 1893:150 [Anzeiger der Kaiserlichen Akademie der Wissenschaften, Wien, Mathematisch-Naturwissenschaftliche Classe v. 30 (no. 14) (for 18 May 1893); ref. 20494] Vigan, Ilocos Sur, Philippines. Syntypes: (several) NMW 30143-44 (2). Species described in more detail in Steindachner 1893:230 [ref. 14536]. •Valid as Acentrogobius viganensis (Steindachner 1893) -- (Akihito in Masuda et al. 1984:249 [ref. 6441], Kawanabe & Mizuno 1989:568 [ref. 25598], Larson in Randall & Lim 2000:635 [ref. 25122], Nakabo 2000:1245 [ref. 25182], Allen 2000:118 [ref. 25868], Larson & Murdy 2001:3594 [ref. 26293], Sakai et al. 2001:109 [ref. 25693], Nakabo 2002:1245 [ref. 26193], Kottelat 2013:398 [ref. 32989], Allen 2015:7 [ref. 33699], Allen 2017:108 [ref. 35601], Parenti 2021:81 [ref. 38603]). •Valid as Yongeichthys viganensis (Steindachner 1893) -- (Larson 2022:155 [ref. 39971]). Current status: Valid as Yongeichthys viganensis (Steindachner 1893). Gobiidae: Gobiinae. Distribution: Western Pacific: Philippines north to Taiwan and Ryukyu Islands (Japan). Habitat: freshwater, brackish.