NitorNitor is a genus of air-breathing land snails, terrestrial pulmonate gastropod molluscs in the family Helicarionidae.SpeciesSpecies within the genus Nitor include:Nitor circumcincta Nitor helmsianus Iredale, 1941Nitor medioximus Iredale, 1941Nitor moretonensis - Moreton land snailNitor pudibunda Nitor subrugata Nitor wiangariensis Hyman, 2007 - Wiangarie Forest Glass Snail