Home > Invertebrates > Shells > Sundials > Heliacus trochoides

Updated 3/1/2026

Family Architectonicidae

INDO-WEST PACIFIC / HAWAII

Heliacus trochoides

Makapu'u intertidal, Oahu

 

  

TOP SUNDIAL

Uncommon in beds of zoanthid anemones on benches and reefs exposed to wave action.  Attains height of 0.6 inch, 16 mm.  South Africa to Hawaii and French Polynesia.