The fragile tree snail (Samoana fragilis; akaleha dogas, denden), in the Partulidae family, is known from the forest ecosystems of Guam and Rota. The conical shell of the fragile tree snail is 0.5 to 0.6 in (12 to 16 mm) long, 0.4 to 0.5 in (10 to 12 mm) wide, and is formed by four whorls that...