Over the last decade, north-eastern India has seen discoveries of several new species of herpetofauna or range extensions of known species. Yet, Nagaland remains poorly surveyed for this group.

As part of the surveys conducted in 2011, a team of researchers used simple visual encounter survey method to locate reptiles and amphibians. In a period of two months from April to June, the team found 30 species of snakes, 9 species of Sauria (lizards, geckos, skinks), one species of turtle, more than 30 species of frogs representing more than 6 families and one species of Caecilian.

The survey led to discovery of Burmese rat snake (Maculophis bella bella), a new record for India. Apart from that, several range extensions or first records for Nagaland found during the survey include, Darjeeling snail-eater (Pareas macularius), Mandarin trinket snake (Euprepiophis mandarinus), Darjeeling oriental slender snake (Trachischium fuscum) and Medo pit viper (Viridovipera cf medoensis).

With respect to amphibians, due to lack of literature on this group, many individuals were not identified to species level. Hence, it is difficult to establish the number of species encountered which could be of significant taxonomic importance.