Kaala subrutila is a tropical land snail endemic to Mt. Kaala, Hawaii (found above approximately 3000 ft in elevation). This terrestrial gastropod mollusc is in the family Helicarionidae. This species was originally described in 1845 as Helix subrutila by Mighels. Based on morphometrics and anatomical studies, Baker described a new genus, Kaala, attributing the name to Cooke.
BAKER, H. B. 1940. Zonitid snails from Pacific islands, Part 2. Bull. Bernice P. Bishop Mus. 165: 161-163.