Neritona granosa is a species of freshwater snail with an operculum, an aquatic gastropod mollusc in the family Neritidae.

[2] These snails live in streams and once they find an area to take a stop, they stay in that district.

Hīhīwai can be found all throughout Hawaii, however as of lately, their range of habitats have been continuously deteriorating because of stream modifications.

Major threats include obstruction of natural stream flow and inundation by saline water.

[3] Afterwards the growth rate takes a leap back slowing down the rapidly growing snails.