Home > Invertebrates > Shells > Muricidae > Sistrum ricinus var. arachnoides

Updated 11/23/2025

Family Muricidae

INDO-PACIFIC / HAWAII

Sistrum ricinus var. arachnoides

Makapu'u, Oahu, 10 feet, 17 mm

 

 


Mokapu, Oahu, 3 feet, 22 mm

Makapu'u tidepool, Oahu

 

Makapu'u, Oahu, 10 feet, 19 mm

 

GOLDRING DRUPE   MAKALOA

Uncommon under rocks deeper than 10 feet.  This shell has an orange-ringed aperture and much longer spines than Sistrum albolabris, and prefers deeper water.  Feeds upon worms and mollusks.  Attains 1.3 inches, 32 mm.  Red Sea to Hawaii and the Society Islands.  Formerly known as Drupa arachnoides.