林投
On Sarigan, the species has been recorded most frequently in high-elevation native forests on the trunks of large "Erythrina variegata" specimens, often resting at the base of branches. On 19 May 2015 specimens were found consuming the Pandanus-fruit ejecta of the Mariana Fruit Bat on the leaves of a "Pandanus tectorius" tree. Mariana partulids have been noted to consume plant material, both living and decaying.