Chordate features are found only in the larval stage and are generally lost in the adult. The adult secrets a tough cellulose sac in which the animal is embedded.
The following taxa of this subphylum occur in the region:
Class Ascidiacea (Sea squirts)
Botrylloides spp. (Row encrusting tunicates)
Botryllus spp. (Geometric encrusting tunicates)
Didemnum conchyliatum (White speck tunicate)
Trididemnum solidum (Overgrowing mat tunicate)
Clavelina picta (Painted tunicate)
Rhopalaea abdominalis (Reef tunicate)