Amastra agglutinans is a species of land snail, a terrestrial pulmonate gastropod mollusc in the family Amastridae.
(Original description) This shell looks much like Amastra obesa. The shell is slightly carinated on the last two whorls, with the keel accentuated by agglutinations, creating a distinctive pagoda-like appearance.
This species is endemic to Hawaii and occurs on HaleakalÃÂ.