Range

• The genus Halimeda is found throughout tropical and subtropical oceans worldwide.

• In the eastern Pacific, species occur from the Gulf of California south through the Pacific coast of Mexico, Central America, and South America, including the Galápagos Islands.

• Several species occur along the Pacific coast of Guerrero, including the Zihuatanejo region, where they are common on coral and rocky reefs.

Habitat

• Grows on coral reefs, rocky reefs, reef flats, coral rubble, sandy bottoms, seagrass beds, and lagoon habitats.

• Typically found from the lower intertidal zone to depths of about 60 m (200 ft), although some species occur much deeper in exceptionally clear water.

• Anchors to the substrate with root-like holdfasts and often forms extensive underwater meadows.

Size

• Height (Depending on the species): 5–40 cm (2–16 in)

• Individual calcified segments are typically 0.5–5 cm (0.2–2.0 in) wide.

• Colonies may spread over several square metres.