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Updated 7/26/2014

Family Umbraculidae

HAWAII

Umbraculum umbraculum



Makena, Maui, 8 feet

Ma'alaea Bay, Maui

 



Barbers Point, Oahu, 120 feet


Barbers Point, Oahu, 120 feet
 

UMBRELLA SLUG
Quite rare in a wide range of habitats, from exposed tidepools, algal meadows, or rubble where it feeds upon sponges.  Two forms are currently lumped into this circumtropical species in need of further study; a brown form with small and medium-sized compound tubercles, and orange form with large simple tubercles.  Attains at least 6 inches.  Formerly known in Hawaii as Umbraculum sinicum.