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Australogyra zelli

(Veron and Pichon, 1977)

Colonies have a branching growth-form. They may form compact hemispherical mounds or thickets over 2 metres across or occur as a few isolated branches. Corallites are monocentric or form short valleys. Walls are thick, rounded and smooth. Columellae are absent. Tentacles are extended only at night.

Colour: Grey-green to brown.

Habitat: Usually in turbid waters around high islands or in reef lagoons.

Abundance: Uncommon.

Similar species: Goniastrea ramosa

Taxonomic note: Source reference: Veron (2000). Taxonomic reference: Veron, Pichon and Wijsman-Best (1977). Additional identification guide: Veron (1986).

Map displaying probable distribution of species. Points indicate recorded sightings from OBIS.
Australogyra zelli.  Papua New Guinea.  A compact hemispherical clump. Colonies as large as this are uncommon.  Charlie Veron.

Australogyra zelli. Papua New Guinea. A compact hemispherical clump. Colonies as large as this are uncommon. Charlie Veron.

Australogyra zelli.  Great Barrier Reef, Australia.  This species shows little variation: colonies consist of thick interlocking irregular branches.  Ed Lovell.

Australogyra zelli. Great Barrier Reef, Australia. This species shows little variation: colonies consist of thick interlocking irregular branches. Ed Lovell.

Australogyra zelli.  Great Barrier Reef, Australia.  Branch ends.  Ed Lovell.

Australogyra zelli. Great Barrier Reef, Australia. Branch ends. Ed Lovell.

Australogyra zelli.  Great Barrier Reef, Australia.  Showing branch end.

Australogyra zelli. Great Barrier Reef, Australia. Showing branch end.

Australogyra zelli.  Great Barrier Reef, Australia.  Showing corallites.

Australogyra zelli. Great Barrier Reef, Australia. Showing corallites.

Australogyra zelli.  Great Barrier Reef, Australia.  Showing branches.

Australogyra zelli. Great Barrier Reef, Australia. Showing branches.

Australogyra zelli.  Great Barrier Reef, Australia.  Showing branch end.

Australogyra zelli. Great Barrier Reef, Australia. Showing branch end.

Australogyra zelli.  Great Barrier Reef, Australia.  Showing branching pattern.

Australogyra zelli. Great Barrier Reef, Australia. Showing branching pattern.

Australogyra zelli.  Great Barrier Reef, Australia.  Showing branching pattern.

Australogyra zelli. Great Barrier Reef, Australia. Showing branching pattern.