om ous ▁s nake ▁in ▁the ▁world . ▁Many ▁of ▁the ▁s nake ▁species ▁here ▁are ▁el us ive ▁( and ▁rare ), ▁such ▁as ▁the ▁Cher rap un ji ▁ke el back , ▁K has i ▁ke el back ▁or ▁K has i ▁earth ▁s nake . ▁ ▁The ▁d amp ▁and ▁mo ist ▁environment ▁of ▁the ▁Meg hal aya ▁for ests ▁also ▁supports ▁what ▁is ▁the ▁most ▁diverse ▁range ▁of ▁am ph ib ians ▁in ▁North - east ▁India , ▁with ▁a ▁total ▁of ▁ 3 3 ▁recorded ▁species ▁living ▁here . ▁The ▁two ▁f rog ▁species ▁Sh ill ong ▁bush ▁f rog ▁and ▁K has i ▁Hill ▁to ad ▁are ▁en demic , ▁and ▁both ▁rare ▁and ▁threatened . ▁ ▁M oll us cs ▁are ▁th riv ing ▁in ▁the ▁mo ist ▁conditions ▁and ▁are ▁abund ant ▁throughout , ▁both ▁on ▁land ▁and ▁in ▁the ▁water , ▁As ▁much ▁as ▁ 2 2 3 ▁species ▁has ▁been ▁recorded ▁by ▁science , ▁and ▁many ▁of ▁the ▁land - d well ing ▁m oll us cs ▁are ▁en demic ▁to ▁Meg hal aya . ▁F resh ▁water ▁m oll us cs ▁are ▁generally ▁considered ▁a ▁good ▁indicator ▁species ▁of ▁clean ▁waters , ▁and ▁Meg hal aya ' s ▁water ways ▁are ▁home ▁to ▁ 3 5 ▁species , ▁with ▁a ▁lot ▁of ▁pal ud om us - sn ails ▁in ▁the ▁hill ▁streams . ▁Several ▁types ▁of ▁fresh ▁water ▁sn ails ▁are ▁part ▁of ▁the ▁hill ▁tribes ▁di et , ▁including ▁the