Home > Invertebrates > Tunicates > Botryllus

Updated 3/16/2014

Phylum Urochordata


Botryllus spp.

Makapu'u tidepool, Oahu



Sand Island, Oahu, 10 feet

Ft. Kamehemeha, Oahu, 3 feet


Found on and under stones in shallow water including harbors.  Zooids are less than 1/2 inch.  Since these forms are typically found in harbors it is assumed that most arrived to Hawaii on ship hulls.