831 species

Acropora millepora

(Ehrenberg, 1834)


Oken, 1815

Characters: Colonies are corymbose cushions or form clumps with irregular uniform branches. Axial corallites are tubular in shape. Radial corallites are labellate with rounded, flaring lower lips, all the same size and form a rosette near branchlet tips.

Colour: Usually brown or muddy green but sometimes blue or purple.

Similar Species: Acropora spathulata and A. convexa. A. spathulata forms corymbose clumps with thicker branchlets. A. convexa has prominent radial corallites with prominent lower lips.

Habitat: Shallow water, usually reef flats, but also lagoons and upper reef slopes.

Abundance: Common.

Taxonomic Note: Part of a species complex also comprising A. convexa, A. spathulata and Acropora prostrata sensu Veron (2000a).

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