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Diaseris fragilis

Alcock, 1893

Polyps are irregular in outline, up to 70 millimetres across and generally composed of several wedge-shaped sectors which readily break apart. The beaded septa are approximately equal in height.

Colour: Greyish-yellow or beige, often with green margins or centres.

Habitat: Found on a wide range of lower reef slopes or flat substrates.

Abundance: Uncommon, but may be plentiful where it occurs.

Similar species:

Taxonomic note: Source reference: Veron (2000). Taxonomic reference: Veron and Pichon (1980). Additional identification guides: Veron (1986), Nishihira and Veron (1995).

Map displaying probable distribution of species. Points indicate recorded sightings from OBIS.
Diaseris fragilis.  Great Barrier Reef, Australia.  On a soft substrate in an inter-reef habitat.  Charlie Veron.

Diaseris fragilis.Great Barrier Reef, Australia.On a soft substrate in an inter-reef habitat.Charlie Veron.

Diaseris fragilis.  Ryukyu Islands, Japan.  A large specimen.  Moritaka Nishihra.

Diaseris fragilis.Ryukyu Islands, Japan.A large specimen.Moritaka Nishihra.

Diaseris fragilis.  Philippines.  A small specimen loosely attached to the substrate.  Charlie Veron.

Diaseris fragilis.Philippines.A small specimen loosely attached to the substrate.Charlie Veron.

Diaseris fragilis.  Philippines.  Surface detail.  Charlie Veron.

Diaseris fragilis.Philippines.Surface detail.Charlie Veron.

Diaseris fragilis.  Great Barrier Reef, Australia.  Showing lower surface and fracture lines.

Diaseris fragilis.Great Barrier Reef, Australia.Showing lower surface and fracture lines.

Diaseris fragilis.  Great Barrier Reef, Australia.  Showing upper surface and fracture lines.

Diaseris fragilis.Great Barrier Reef, Australia.Showing upper surface and fracture lines.