CHAETODON • E-FREE TRANSLATION.COM • Definition of Chaetodon

... Leucisci, and one a Mastacembelus (M. armatus, Lacep); one was an Ophiocephalus, and one a Polyacanthus, with no serrae on the gills. Six were from the Kalanyganga, close to Colombo, of which two were Helostoma, in shape approaching the Chaetodon; two Ophiocephali, one a Silurus, and one an Anabas, but the gills were without denticulation. From the still water of the lake, close to the walls of Colombo, there were two species of Eleotris, one Silurus with barbels, and two Malacopterygians, ...

— Sketches of the Natural History of Ceylon • J. Emerson Tennent