Sebae anemone

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Sebae anemone
A Red Sea clownfish in a sebae anemone
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Cnidaria
Class: Hexacorallia
Order: Actiniaria
Family: Stichodactylidae
Genus:
Heteractis
Species:
H. crispa
Binomial name
Heteractis crispa
(Hemprich and Ehrenberg in Ehrenberg, 1834)
Synonyms
List
  • Actinia crispa Hemprich & Ehrenberg in Ehrenberg, 1834
  • Actinia paumotensis Couthouy in Dana, 1846
  • Antheopsis crispa (Ehrenberg, 1834)
  • Antheopsis kuekenthali Kwietniewski
  • Antheopsis macrodactylus Haddon & Shackleton
  • Bunodes crispa (Hemprich & Ehrenberg in Ehrenberg, 1834)
  • Bunodes crispus (Hemprich & Ehrenberg in Ehrenberg, 1834)
  • Cereus crispus
  • Cereus paumotensis
  • Discosoma macrodactylum Haddon & Shackleton, 1893
  • Discosoma tuberculata Kwietniewski, 1898
  • Discosomoides tuberculata
  • Entacmaea crispa Hemprich & Ehrenberg
  • Heliactis paumotensis Dana
  • Heteractis macrodactylum (Haddon & Shackleton, 1893)
  • Radianthus crispus (Ehrenberg, 1834)
  • Radianthus kuekenthali Kwietniewski, 1896
  • Radianthus lobatus Kwietniewski, 1897
  • Radianthus macrodactylus (Haddon & Shackleton, 1893
  • Stoichactis tuberculata Kwietniewski

The sebae anemone (Heteractis crispa), also known as leathery sea anemone, long tentacle anemone, or purple tip anemone, is a species of sea anemone belonging to the family Stichodactylidae and native to the Indo-Pacific area.

It was first described in 1834 by Wilhelm Hemprich and Christian Gottfried Ehrenberg as Actinia crispa.[1][2] The name accepted by the World Register of Marine Species is Radianthus crispa.[1]

Description

The sebae anemone is characterized by a flared oral disc that reaches between 20 and 50 cm in diameter and with multiple and long tentacles measuring 10 to 15 cm. These tentacles have rounded tip and the end is often colored with a purple or blue spot. The column, external structure of an anemone visible when the animal is closed, is gray in color and dotted with sticky whitish "warts". The sea anemone, being member of the Hexacorallia, usually carries a number of tentacles multiple of six and they are positioned in concentric circles. These are light beige to purple.

Distribution and habitat

The sebae anemone is widespread throughout the tropical and subtropical waters of the Indo-Pacific area from the eastern coasts of Africa,

New-Caledonia.[3]

This sea anemone prefers hard base substrates slightly covered with sand but it can also cling to branching corals from the surface to 40 meters deep.[3][4]

Biology

The sebae anemone has two ways to feed. The first one is through the inside via

zooxanthellae
, living in its tissues. And the second one is through a normal way by capturing its prey via its tentacles that allow it to immobilize its prey (small invertebrates, fry, or juvenile fish).

Its reproduction can be

scissiparity;[3]
the anemone divides itself into two separate individuals from the foot or the mouth.

The relationship between anemonefish and their host sea anemones is highly

Entacmaea quadricolor and/or environmentally controlled cessation of fish growth.[6] Why this would be so in the Red Sea is not clear, when in the western Pacific, adult pairs are found in individuals of H. crispa.[7]

The anemone fish hosted by the sebae anemone are: [8][n 1]

  • Amphiprion akindynos (Barrier Reef anemonefish)
  • A. barberi (Barber's anemonefish) [9]
  • A. bicinctus
    (two-band anemonefish)
  • A. chrysopterus
    (orange-fin anemonefish)
  • A. clarkii
    (Clark's anemonefish)
  • A. ephippium
    (red saddleback anemonefish)
  • A. latezonatus (wide-band anemonefish)
  • A. leucokranos (white-bonnet anemonefish)
  • A. melanopus
    (red and black anemonefish)
  • A. omanensis (Oman anemonefish)
  • A. percula
    (clown anemonefish)
  • A. perideraion
    (pink skunk anemonefish)
  • A. polymnus
    (saddleback anemonefish)
  • A. sandaracinos
    (orange anemonefish)
  • A. thiellei [n 2]
  • A. tricinctus
    (three-band anemonefish)

Juveniles of

Dascyllus trimaculatus are also associated with H. crispa.[8]

Gallery

Anemonefish in H. crispa

  • A. barberi (Barber's anemonefish)
    A. barberi (Barber's anemonefish)
  • A. bicinctus (two-band anemonefish)
    A. bicinctus
    (two-band anemonefish)
  • A. clarkii (Clark's anemonefish)
    A. clarkii
    (Clark's anemonefish)
  • A. latezonatus (wide-band anemonefish)
    A. latezonatus (wide-band anemonefish)
  • A. polymnus (saddleback anemonefish)
    A. polymnus
    (saddleback anemonefish)
  • A. sandaracinos (orange skunk anemonefish)
    A. sandaracinos
    (orange skunk anemonefish)

Notes

  1. Amphiprion sebae), with which it shares part of its common name, is hosted by Stichodactyla haddoni, the saddle anemone.[8]
  2. ^ Field records are lacking for A. thiellei and H. crispa is listed as one of the probable hosts.[10]

References

  1. ^ a b "WoRMS - World Register of Marine Species - Radianthus crispa (Hemprich & Ehrenberg in Ehrenberg, 1834)". www.marinespecies.org. Retrieved 2022-12-21.
  2. Wikidata Q115748229
    .
  3. ^
    S2CID 23785363
    .
  4. ^ Gosliner T.M., Behrens D.W., Williams G.C., 1996, CORAL REEF ANIMALS OF THE INDO-PACIFIC, ed. Sea Challengers, Monterey, California, 314p.
  5. PMID 17476781
    .
  6. ^
    S2CID 53073578
    .
  7. S2CID 84330335
    .
  8. ^
    ISBN 9780730983651. Archived from the original
    on 14 April 2015.
  9. S2CID 82617954
    .
  10. PMID 23122007
    .

External links
Wikimedia Commons has media related to Heteractis crispa
(Sebae anemone).
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