Home > Invertebrates > Shells > Sundials > Heliacus trochoides

Family Architectonicidae

INDO-WEST PACIFIC / HAWAII

Heliacus trochoides

Makapu'u intertidal, Oahu

 cropped

TOP-SHELL SUNDIAL

Uncommon in beds of zoanthid anemones on intertidal pools and benches.  Attains height of 0.75 inch.  Hawaii, Indo-West Pacific, & Tropical Eastern Pacific.