Genus Halimeda

1, 4. Habit. 2. Longitudinal section of segment. 3 Surface view of utricles (after decalcification). 4. In habitat (Nha Trang Bay, Vietnam). April 2007.

1. Longitudinal section of segment. 2. Cells from above. 3, 4. Habit (in aquarium), Okinawa Island, Japan, December 2006.

1. Habit. 2. Low intertidal (Con Dao Islands, Vietnam). April 2008.

Habitat, middle intertidal (Sesoko Island, Okinawa, Japan). March 2003.

1. Fragment. Plant in aquarium, My Hoa, Vietnam, March 2006.

1, 4, 5. Habit (in aquarium). 2. Medullary filament bearing utricles. 3. Surface view of outermost utricles after decalcification. Japan, Okinawa Island, December 2006.

1. Subsurface utricles each bearing three surface utricles. 2. Surface view of outermost utricles. 3. Habit (Sesoko Island, Okinawa, Japan). May 2005.

1, 2. In habitat, on demaged corals in low intertidal (Japan, Ryukyu Archipelago, Yonaguni Island). March 2013.