sciurus, Arius Smith [H. M.] 1931:30 [Proceedings of the United States National Museum v. 79 (no. 2873); ref. 4047] Tapii River near Surat Thani, Malay Peninsula, Thailand. Holotype: USNM 90310. Paratypes: (1). Type catalog: Ferraris & Vari 1992:7 [ref. 19771], Ferraris 2007:35 [ref. 29155], Vilasri et al. 2018:60 [ref. 36451]. •Valid as Arius sciurus Smith 1931 -- (Burgess 1989:169 [ref. 12860]). •Probable synonym of Arius microcephalus Bleeker 1855 -- (Kailola 1999:1857 [ref. 24732]). •Synonym of Arius microcephalus Bleeker 1855 -- (Kailola 2004:127 [ref. 28108], Marceniuk & Menezes 2007:19 [ref. 29031], Ferraris 2007:35 [ref. 29155], Kottelat 2013:247 [ref. 32989], Vilasri et al. 2018:60 [ref. 36451]). Current status: Synonym of Arius microcephalus Bleeker 1855. Ariidae: Ariinae. Habitat: brackish, marine.