Available literature of the fish fauna of northeast India was studied.
Systematic arrangement and distribution of fishes were followed
after Vishwanath et al. (2007). In the case of catfishes, a systematic
arrangement of families and genera cited by Ferraris (2007) was
followed. IUCN and NBFGR (Lakra et al., 2010; Viswanath et al.,
2010) proposed threat criteria of species was considered. Further,
the habitat, of the fish or the group was analyzed from the physical
verification of the geographical localities as well as the concerned
natural and anthropogenic threats. 35 different references cited in
introduction were considered in preparing the list. In the present
investigation, a total of 35 references were considered in the
preparation of the entire list from the various states