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Branching fire coral (Millepora alcicornis)

Photo of Branching fire coral (Millepora alcicornis)

Key facts

Scientific name
Millepora alcicornis
Common name
Branching fire coral
Category
Cnidarians
Family
Milleporidae
Genus
Millepora
Size
20–100 cm
Depth
1–40 m
IUCN status
Least concern (LC)
Danger level
Venomous
Habitats
reef
Behaviours
sessile, colonial
Ocean zones
Caribbean, Macaronesia, Eastern Pacific

Description

Millepora alcicornis forms branching or plate colonies in mustard-yellow to yellow-brown, resembling antlers (alcicornis). It is not a true coral but a colonial hydrozoan whose nematocysts inflict a painful persistent burn on contact with bare skin. Very common in shallow water on all Caribbean reefs. Cover exposed skin. Stings can last several days.

Photo of Branching fire coral

Photo of Branching fire coral (Millepora alcicornis)

Frequently asked questions

How big is the Branching fire coral?
Branching fire coral (Millepora alcicornis) reaches 20–100 cm in length.
At what depth can you find the Branching fire coral?
Branching fire coral is found between 1–40 m deep.
Is the Branching fire coral dangerous to divers?
Danger level: Venomous.
What is the conservation status of the Branching fire coral?
IUCN status: Least concern (LC).
Where can you find the Branching fire coral?
Found in: Caribbean, Macaronesia, Eastern Pacific.

Similar species

  • Cyanea capillata - Lion's mane jellyfish
  • Plumularia setacea - Feathery hydroid
  • Cassiopea andromeda - Upside-down jellyfish
  • Condylactis gigantea - Giant Caribbean anemone
  • Bartholomea annulata - Corkscrew anemone
  • Palythoa caribaeorum - Caribbean mat zoanthid

Sources

  • Taxonomy: WoRMS (AphiaID 210726)
  • Photos: iNaturalist (CC BY-NC)
  • Distribution: GBIF (taxonKey 2265089)
  • Conservation: IUCN Red List
  • Encyclopedia: Wikipedia