Family Flutidao ;Swamp-Eels
onle one species found: Fluta alba ( zuiew)
Family symbranchidae
1a.Gill openings narrow, forming a single aperture sonfined to the ventral surface; posterior nostrils oval, above eye; eyessmmall; origin of dorsal fin in advance of anal opening.....................................symbranchidae
1b. Gill openings forming a single, very wide aperture extendingsides to lateral ling; posterior nostrils oblique, lanceolate above eyes; eyeminute; origin of dorsal fin opposite anal opening ................................................................Macrotrema
Genus Symdranchus
only one species found S. bengalensis (Mc. Clalland)
Genus Macrotrema
only one species found M. caligans (cantor)