831 species

Acropora tortuosa

(Dana, 1846)


Oken, 1815

Characters: Colonies consist of prostrate or upright, tapered branches which have many branchlets and incipient axial corallites. Corallites are immersed to long and tubular, giving branches a rough, irregular appearance. Tentacles are not extended during the day.

Colour: Deep blue (which may photograph mauve) or brown.

Similar Species: Acropora horrida, which has smaller, more compact corallites and tentacles extended during the day.

Habitat: Lagoons.

Abundance: Common at Elizabeth and Middleton Reefs of south-east Australia, rare elsewhere.

Taxonomic Note: Similar to Acropora horrida but much less common.

COTW History since Veron (2000a)
  • Family: All families are currently under review
  • Genus/species: No change