Entacmaea quadricolor   (Leuckart, 1828)

Bulb-tentacle sea anemone

Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Entacmaea quadricolor  AquaMaps  Data sources: GBIF OBIS
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Entacmaea quadricolor

Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS

Anthozoa | Actiniaria | Actiniidae

Environment: milieu / climate zone / depth range / distribution range Ecology

Reef-associated; depth range 0 - 200 m (Ref. 102444).  Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Indo-Pacific: Micronesia and Melanesia to east Africa and the Red Sea and from Australia to Japan.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm Max length : 40.0 cm WD male/unsexed; (Ref. 9810)

Short description Morphology

Tentacle up to 10 cm in length and are usually brown with bulb at or below the end. Tip of the tentacle is usually red with the equator of the bulb white. Bulb is said to be related to presence of fish and may be absent in which case tentacles have a white ring where the equator of the bulb would have formed. Shallow water specimens have small polyps with oral disc diameter about 5cm and are clustered together in crevices or adjacent to coral branches so that they appear confluent and forms an extensive field. In deep water they may reach up to 40cm diameter (oral disc) and are solitary.

Biology     Glossary (e.g. epibenthic)

Commonly attached deeply in crevice or hole so that only tentacles are visible (Ref. 9810). Attached specifically deep within a crevice on coral reefs and among rocks (Ref. 102838). Collumn without verrucae and usually brown, sometimes reddish or greenish. Oral disc same brown color with tentacles and these tentacles collapse when disturbed (Ref. 9810). Smaller individuals are clustered in shallow waters. Larger individuals are usually solitary, and found in deeper waters. Has a symbiotic zooxanthellae, which produces food through photosynthesis (Ref. 125532). Host to the clown fish Amphiprion clarkii (Ref. 102838). Sea anemones in general feed on various invertebrates; some are suspension feeders (Ref. 833).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Members of the class Anthozoa are either gonochoric or hermaphroditic. Mature gametes are shed into the coelenteron and spawned through the mouth. Life cycle: The zygote develops into a planktonic planula larva. Metamorphosis begins with early morphogenesis of tentacles, septa and pharynx before larval settlement on the aboral end.

Main reference References | Coordinator | Collaborators

Fautin, D.G. 2007. (Ref. 77115)

IUCN Red List Status (Ref. 130435)

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans


Human uses

| FishSource |


More information

FAO areas
Food items
Common names
Egg development
Mass conversion

Internet sources

BHL | BOLD Systems | CISTI | DiscoverLife | FAO(Publication : search) | Fishipedia | GenBank (genome, nucleotide) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | Hexacorallians of the World | Tree of Life | Wikipedia (Go, Search) | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 21.4 - 28.5, mean 27 (based on 1301 cells).