Giant river catfish, Sperata seenghala (Sykes, 1839)

Systematic position (Nelson 2006) Class- Actinopterygii (Ray- finned fish) Order- Siluriformes (Catfishes) Family- Bagridae (Bagrid catfishes) Genus- Sperata Species- S. seenghala Common/local names: Fishbase: Gaint river catfish Bangladesh: Guizza (গুইজ্জা), Guizza ayer (গুইজ্জা আইড়) (Rahman 1989) India: Auri, Ari, Pogal,

Longfin snake-eel: Pisodonophis cancrivorus (Richardson, 1844)

Systematic position Phylum: Chordata Class: Actinopterygii (Ray-finned fishes) Order: Anguilliformes (spiny eels) Family: Ophichthidae (snake eels) Genus: Pisodonophis Species: P. cancrivorus Synonyms Myrophis chrysogaster Macleay, 1881 Ophichthus chilkensis Chaudhuri, 1916 Ophisurus cancrivorus Richardson, 1848 Ophisurus nigrepinnis Liénard, 1842 Pisodonophis cancrivorus

Menoda catfish: Hemibagrus menoda (Hamilton, 1822)

Systematic position Class: Actinopterigii Order: Siluriformes (Catfishes) Family: Bagridae (Bagrid catfishes) Genus: Hemibargus Species: H. menoda Common/Local names: Menoda catfish (Fishbase), Golsa-tengra, Arwari, koune, koune magur, Gagor, Gang magur (Bangladesh), Gagol, Ghagla, Arr-tengra, Belaunda, Belauna, Belauli, Pungah-guggah (India).(Talwar and Jhingrun,