About Echinolittorina hawaiiensis (Rosewater & Kadolsky, 1981)
Anatomy and morphology: The shell of Echinolittorina hawaiiensis can reach up to 1 cm in size, and has a round, cone shape. Due to environmental polymorphism, the shell sometimes develops surface sculpture. The shell is able to trap water, which lets this snail hibernate for long periods. This species develops into planktonic trochophore larvae during its life cycle. Distribution and habitat: Echinolittorina hawaiiensis is endemic to Hawaii. It is abundant, forming clusters on rocky shores located just above the waterline.
