Home > Invertebrates > Shells > Tritons > Monoplex mundus

Updated 12/25/2025

Family Cymatiidae

CIRCUMTROPICAL / HAWAII

Monoplex mundus



Mokapu, Oahu, 3 feet


Pearl Harbor, Oahu. @ Padgett Carpenter

Makapu'u tidepool, Oahu

 

Koke'e Beach tidepool, Oahu

 

CLEAR TRITON

Fairly common under stones in shallow water.  Exterior cream or yellowish-brown, aperture and columella white.  Attains 1.6 inches, 40mm.  South Africa to Hawaii, French Polynesia, Galapagos, and Florida.  Long misidentified in Hawaii as Cymatium gemmatum, which is now assigned to the rare Monoplex gemmatus.