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Paraclavarina triangularis

(Veron and Pichon, 1980)

Colonies are a network of anastomosing branches, either compacted or open, and up to 5 metres across in lagoons with soft substrates. Branches are triangular in section. Valleys are short and shallow with thick columellae and septa which, except near branch tips, are fused into one solid structure. Tentacles may be extended during the day. There is little or no development of an encrusting base and no development of laminae.

Colour: Pale yellow or cream.

Habitat: Reef environments protected from strong wave action.

Abundance: Usually uncommon.

Similar species:

Taxonomic note: Source reference: Veron (2000). Taxonomic references: Veron and Pichon (1980), Veron (1985). Additional identification guide: Veron (1986).

Map displaying probable distribution of species. Points indicate recorded sightings from OBIS.
Paraclavarina triangularis.  Papua New Guinea.  Forming an extensive stand.  Charlie Veron.

Paraclavarina triangularis. Papua New Guinea. Forming an extensive stand. Charlie Veron.

Paraclavarina triangularis.  Great Barrier Reef, Australia.  A compact colony of branches.  Charlie Veron.

Paraclavarina triangularis. Great Barrier Reef, Australia. A compact colony of branches. Charlie Veron.

Paraclavarina triangularis.  Great Barrier Reef, Australia.  Surface of a large colony.  Len Zell.

Paraclavarina triangularis. Great Barrier Reef, Australia. Surface of a large colony. Len Zell.

Paraclavarina triangularis.  Micronesia.  Branches with tentacles extended.  Pat Colin.

Paraclavarina triangularis. Micronesia. Branches with tentacles extended. Pat Colin.

Paraclavarina triangularis.  Micronesia.  Tentacles are in rows down the sides of branches.  Pat Colin.

Paraclavarina triangularis. Micronesia. Tentacles are in rows down the sides of branches. Pat Colin.

Paraclavarina triangularis.  Great Barrier Reef, Australia.  Showing branches.

Paraclavarina triangularis. Great Barrier Reef, Australia. Showing branches.

Paraclavarina triangularis.  Great Barrier Reef, Australia.  Showing branching pattern.

Paraclavarina triangularis. Great Barrier Reef, Australia. Showing branching pattern.

Paraclavarina triangularis.  Great Barrier Reef, Australia.  Showing colony shape.

Paraclavarina triangularis. Great Barrier Reef, Australia. Showing colony shape.

Paraclavarina triangularis.  Great Barrier Reef, Australia.  Showing corallite detail.

Paraclavarina triangularis. Great Barrier Reef, Australia. Showing corallite detail.