chaca, Platystacus Hamilton [F.] 1822:140, 374, Pl. 28 (fig. 43) [An account of the fishes found in the river Ganges; ref. 2031] Northeastern Bengal. No types known. Type catalog: Ferraris 2007:136 [ref. 29155]. Hamilton's original illustration reproduced by Britz 2019:Pl. 79 [ref. 37532]. •Valid as Chaca chaca (Hamilton 1822) -- (Shrestha 1978:39 [ref. 15970], Burgess 1989:152 [ref. 12860], Ataur Rahman 1989:174 [ref. 24860], Talwar & Jhingran 1991:692 [ref. 20764], Sen 1995:579 [ref. 23778], Menon 1999:263 [ref. 24904], Karmakar 2000:34 [ref. 25662], Ataur Rahman 2003:194 [ref. 31338], Diogo et al. 2004:159 [ref. 27880], Jayaram 2006:318 [ref. 28762], Ferraris 2007:135 [ref. 29155], Shrestha 2008:196 [ref. 29923], Patra 2011:1612 [ref. 31232], Ng & Kottelat 2012:37 [ref. 31867]). Current status: Valid as Chaca chaca (Hamilton 1822). Chacidae. Distribution: India, Bangladesh, Pakistan and Nepal. Habitat: freshwater.