Aaadonta irregularis is a species of snail, a terrestrial pulmonate gastropod mollusk in the family Endodontidae. It is endemic to Palau,Endodontoid land snails from Pacific islands (Mollusca: Pulmonata: Sigmurethra) Part 1. Family Endodontidae. where it was only known from Peleliu, but has only been found recently on the very small island of Omekang. It is threatened by the destruction and modification of its tropical moist lowland forest habitat.
References
Endodontoid land snails from Pacific Islands (Mollusca : Pulmonata : Sigmurethra). Alan Solem ... ; [collab.] Barbara K. Solem. Chicago, Ill. :Field Museum of Natural History,1976. Endodontoid land snails from Pacific Islands (Mollusca : Pulmonata : Sigmurethra). Alan Solem. Chicago :Field museum of Natural History,1982.