Home > Invertebrates > Hydroids > Pennaria disticha

Updated 8/17/2013

Family Pennariidae

CIRCUMTROPICAL / HAWAII

 Pennaria disticha

Moku o Loe, Kaneohe Bay, Oahu, 5 feet

 

With commensal shrimp, Haleiwa Trench, Oahu, 50 feet

 

Haleiwa Trench, Oahu, 75 feet

Moku o Loe, Kaneohe Bay, Oahu, 5 feet
Haleiwa Trench, Oahu, 60 feet

CHRISTMAS-TREE HYDROID

An introduced species common in protected bays and harbors.  Delivers a painful sting.  Attains height of 8 inches.  Warm seas worldwide.  Formerly known as Halocordyle disticha.