tenuispinis, Arius Day [F.] 1877:466, Pl. 107 (fig. 5) [The fishes of India Part 3; ref. 4886] Mumbai, India. Holotype (unique): ZSI F482. Type catalog: Whitehead & Talwar 1976:162 [ref. 23762], Ferraris 2007:52 [ref. 29155]. •Valid as Tachysurus tenuispinis (Day 1877) -- (Jayaram & Dhanze 1979:49 [ref. 6800]). •Valid as Arius tenuispinis Day 1877 -- (Burgess 1989:169 [ref. 12860], Talwar & Jhingran 1991:705 [ref. 20764], Randall 1995:75 [ref. 22896], Mohsin & Ambak 1996:160 [ref. 27969], Carpenter et al. 1997:122 [ref. 23922], Manilo & Bogorodsky 2003:S97 [ref. 27377], Jayaram 2006:349 [ref. 28762]). •Synonym of Plicofollis layardi (Günther 1866) -- (Kailola 2004:142 [ref. 28108]). •Synonym of Plicofollis layardi (Günther 1866) -- (Kailola 2004:142 [ref. 28108], Kottelat 2013:250 [ref. 32989]). •Valid as Plicofollis tenuispinis (Day 1877) -- (Marceniuk & Menezes 2007:96 [ref. 29031], Ferraris 2007:52 [ref. 29155], Marceniuk et al. 2012:668 [ref. 32225], Eagderi et al. 2019:131 [ref. 37020], Marceniuk et al. 2023:27 [ref. 40422]). Current status: Valid as Plicofollis tenuispinis (Day 1877). Ariidae: Ariinae. Distribution: Northern Indian Ocean: East Africa and Persian Gulf east to western Malaya (Malaysia). Habitat: brackish, marine.