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Phylum Cnidaria > Class Anthozoa > Subclass Zoantharia/Hexacorallia > Order Actiniaria
Glass anemone
Dofleinia sp.
Family Actiniidae
updated Oct 2016

Where seen? This beautiful sea anemone resembles blown glass and is sometimes seen on sand and near seagrasses on some of our shores.

Glass sea anemone features: Diameter with tentacles extended 20cm or more. The oral disk 5-8cm in diameter. Tentacles not many. One ring of about 20 long tentacles (10-20cm), another ring of about the same number of shorter tentacles (length about the diameter of the oral disk). The transparent tentacles and oral disk are covered with tiny bumps that are white, sometimes reddish. In some, the bumps are densely grouped. There is a black-and-white ring on the base of the longer tentacles where they attach to the oral disk. The mouth is ringed by white spots. The body column is smooth almost transparent with regular wide smooth fluted ridges along the column length. It does not seem to have bumps (verrucae).

The Striped or Armed Anemone (Dofleinia armata) found in Australia is considered extremely dangerous as it can inflict painful stings that take months to heal.

Beting Bronok, Jun 10

Rings of long tentacles and short tentacles.

Beting Bronok, Aug 05

Beting Bronok, Jun 06

Pasir Ris Park, Jul 08

Glass anemones on Singapore shores

Photos of Glass anemones for free download from wildsingapore flickr

Distribution in Singapore on this wildsingapore flickr map

Pulau Ubin, Dec 12
Photo shared by Loh Kok Sheng on flickr.

Pulau Sekudu, Jun 17
Photo shared by Toh Chay Hoon on facebook.

Pulau Sekudu, Jul 16
Photo shared by Russel Low on facebook.

Pulau Sekudu, Jun 14

Photo shared by Loh Kok Sheng on flickr.

Cyrene Reef, Jun 11

Photo shared by Loh Kok Sheng on flickr.

Cyrene Reef, Aug 13

Photo shared by Loh Kok Sheng on flickr.



  • Erhardt, Harry and Daniel Knop. 2005. Corals: Indo-Pacific Field Guide IKAN-Unterwasserachiv, Frankfurt. 305 pp.
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