Heteractis aurora

Heteractis aurora
Scientific classification
Kingdom:	Animalia
Phylum:	Cnidaria
Class:	Anthozoa
Subclass:	Hexacorallia
Order:	Actiniaria
Family:	Stichodactylidae
Genus:	Heteractis
Species:	H. aurora
Binomial name
Heteractis aurora (Quoy & Gaimard, 1833)
Synonyms
Actinia aurora Radianthus koseirensis (Mariscal 1970, 1972) Radianthus simplex (Allen 1972, Moyer 1976) Bartholomea sp. (Uchida 1975)

Heteractis aurora, also known as the beaded sea anemone,^[1] aurora host anemone, sand anemone, carpet anemone, flat anemone, corn anemone, ritteri anemone, saddle tip anemone, adhesive sea anemone, and the white beaded anemone, is a species of sea anemone in the family Stichodactylidae.^[2]

Description

Both the tentalces and oral disc of Heteractis aurora are brown or purplish. The tentacles reach 50 mm in length, may be sticky when touched, and can have tips of a magenta colouration. The longer tentacles contain swellings. These appear on only on a single side, or almost entirely surrounding the tentacle, giving the appearance of beads on a string. A maximum of 20 such swellings may occur on any single tentacle.^[1]

This species has a broad, flattened oral disc reaching 250 mm wide, and may have white or brown markings that radiate from the centre, and even continue up and along the tentacles.^[1]

Distribution

Heteractis aurora occurs in Micronesia as well as in Melanesia to East Africa. It is also present in the Red Sea, and in Australia to the Ryukyu Islands.^[1]

Habitat

This species lives among coral, and along rocky reef edges and on slopes, normally in areas with strong currents. They attach themselves to a surface, and remain partially buried in sediment or sand,^[1] When threatened, they may retract entirely out of view into the substrate.

Host Species

This species hosts such fish as Amphiprion akindynos, Amphiprion allardi, Amphiprion bicinctus, Amphiprion chrysogaster, Amphiprion chrysopterus, and Amphiprion clarkii, Amphiprion tricinctus.^[1]

References