• Actinodendridae Haddon, A.C. 1898. The Actiniaria of Torres Straits. Scientific Transactions of the Royal Dublin Society 6(2): 393-520 [465, 488, 495].

  Type genus:

   Actinodendron de Blainville, 1830.

Diagnosis

Endomyarian with well developed pedal disc, limbus not well defined. Column smooth. No marginal sphincter muscle. Fosse absent. Up to 48 branched tentacles cyclically arranged. Terminal branches of tentacles with acrospheres. Two or more well developed siphonoglyphs. 24 pairs of mesenteries, all or almost all perfect and, apart from the directives, fertile. Retractors diffuse, broad, band-like.

General References

Ardelean, A. & Fautin, D.G. 2004. A new species of the sea anemone Megalactis (Cnidaria: Anthozoa: Actiniaria; Actinodendridae) from Taiwan and designation of a neotype for the type species of the genus. Proceedings of the Biological Society of Washington 117(4): 488-504

Fautin, D.G. 2011. Hexacorallians of the World. http://geoportal.kgs.ku.edu/hexacoral/anemone2/index.cfm

History of changes

• Actinodendron Blainville, H.M.D. de 1830. Zoophytes. In, Levrault, F.G. (ed.). Dictionnaire des Sciences Naturelles, dans lequel on traitre méthodiquement des differéns êtres de la nature, considérés soit en eux-mêmes, d'après l'état actuel de nos connoissances, soit relativement a l'utlité qu'en peuvent retirer la médicine, l'agriculture, le commerce et les arts. Paris : Le Normat Tome 60 546 pp, 68 pls (+ pp. 547-631). [287].

  Type species:

   Actinia arborea Quoy & Gaimard, 1833 by subsequent designation.

Distribution

States

Queensland, Western Australia

IMCRA

Northwest Shelf Province (27), Northeast Shelf Province (40), Northeast Shelf Transition (41)

Diagnosis

Actinodendronidae with the oral disc thrown into long arms, 10-48 in number. Sphincter absent. Tentacles arranged more or less spirally all round the arms, and themselves branched. The tips of the tentacles are provided with long basitrichs forming nematocyst batteries. Longitudinal muscles of tentacles and radial muscles of oral disc ectodermal. 2 broad siphonoglyphs, 2 pairs of directives. Mesenteries few, all or almost all perfect. Retractors very strong, diffuse. All mesenteries apart from the directives fertile. Cnidom: spirocysts, basitrichs.

General References

Fautin, D.G. 2011. Hexacorallians of the World. http://geoportal.kgs.ku.edu/hexacoral/anemone2/index.cfm

History of changes

• Actinodendron alcyonoideum Quoy, J.R. & Gaimard, J.P. 1833. Zoophytes. In: Voyage de Découvertes de l'Astrolabe Exécuté par Ordre du Roi, Pendant les Années 1826-1827-1828-1829, Sous le Commandement de M. J. Dumont D'Urville. Paris : J.Tastu Vol. 4 390 pp. [320].

  Type data:

   Syntype(s) Tonga, Panhi-Motou [19°51'S, 174°22'W].

  Secondary source:

   Fautin, D.G. 2011. Hexacorallians of the World. http://geoportal.kgs.ku.edu/hexacoral/anemone2/index.cfm.

Distribution

States

Queensland, Western Australia

Extra Distribution Information

Indonesia, New Caledonia, Fiji, Tonga, Palau, Micronesia.

IMCRA

Northwest Shelf Province (27), Northeast Shelf Province (40)

Ecological Descriptors

Marine.

General References

Fautin, D.G. 2011. Hexacorallians of the World. http://geoportal.kgs.ku.edu/hexacoral/anemone2/index.cfm

History of changes

• Actinodendron glomeratum Haddon, A.C. 1898. The Actiniaria of Torres Straits. Scientific Transactions of the Royal Dublin Society 6(2): 393-520 [399, 492-493; Pl. XXIV, figs 7-9].

  Type data:

   Syntype(s) ZMLU, QLD, Torres Strait, Murray Islands, Mer [Maer] Island [9°55’S, 144°4’E].

  Secondary source:

   Fautin, D.G. 2011. Hexacorallians of the World. http://geoportal.kgs.ku.edu/hexacoral/anemone2/index.cfm.

Distribution

States

Queensland

IMCRA

Northeast Shelf Transition (41)

Ecological Descriptors

Marine.

Diagnosis

Column smooth, dull greenish yellow with paler vertical lines. Oral disc greyish with irregularly disposed translucent spots, radii stripes deep green stripes near center becoming paler toward periphery.

General References

Fautin, D.G. 2011. Hexacorallians of the World. http://geoportal.kgs.ku.edu/hexacoral/anemone2/index.cfm

History of changes

• Actinodendron plumosum Haddon, A.C. 1898. The Actiniaria of Torres Straits. Scientific Transactions of the Royal Dublin Society 6(2): 393-520 [399, 490-491; Pl. XXIV figs 3-6].

  Type data:

   
  Syntype(s) UMZC I.33465, QLD, Torres Strait, Murray Islands, Mer [Maer] Island, 0 m [9°55'S, 144°04'E]; ZMLU, QLD, Torres Strait, Murray Islands, Mer [Maer] Island [9°55'S, 144°04'E].

  Secondary source:

   Fautin, D.G. 2011. Hexacorallians of the World. http://geoportal.kgs.ku.edu/hexacoral/anemone2/index.cfm.

Distribution

States

Queensland

Extra Distribution Information

Micronesia

IMCRA

Northeast Shelf Province (40), Northeast Shelf Transition (41)

Ecological Descriptors

Marine.

Diagnosis

Column smooth, cream, yellow, or pinkish, to 230 mm, transversely corrugated when contracted. 2 very strong siphonoglyphs with well developed aboral prolongations. 48 tentacles in two cycles, inner longer than outer. Mouth oval, may be on raised cone, with two siphonoglyphs. 24 pairs of mesenteries. Band-like retractors, on non-directives are curved towards exocoels.

General References

Carlgren, O. 1950. Actiniaria and Corallimorpharia. Scientific Reports of the Great Barrier Reef Expedition 1928-1929 5(7): 427-457

Fautin, D.G. 2011. Hexacorallians of the World. http://geoportal.kgs.ku.edu/hexacoral/anemone2/index.cfm

History of changes

• Megalactis Ehrenberg, G.G. 1834. Beitrage zur physiologischen Kenntniss der Corallenthiere im Allgemeinen und besanders des Rothen Meeres nebst, einem Versuche zur physiologischen Systematik derselben. Abhandlungen der Königlich-Preussischen Akademie der Wissenschaften. Berlin 1832(1): 225–380 [263].

  Type species:

   Megalactis hemprichii Ehrenberg, 1834 by monotypy.

Distribution

States

Queensland

IMCRA

Northeast Shelf Transition (41)

Diagnosis

Actinodendronidae with very long arms, the oral faces of the arms free from tentacles, which are set along their sides. The ultimate branches of the tentacles simple and pointed.

General References

Fautin, D.G. 2011. Hexacorallians of the World. http://geoportal.kgs.ku.edu/hexacoral/anemone2/index.cfm

History of changes

• Megalactis griffithsi Saville-Kent, W. 1893. The Great Barrier Reef of Australia; its Products and Potentialities. London : W.H. Allen & Co., Limited. [xiii] + 388 pp. 21 figs 64 pls. [35, 147].

  Type data:

   Syntype(s) [9°30'S, 142°06'E].

  Secondary source:

   Fautin, D.G. 2011. Hexacorallians of the World. http://geoportal.kgs.ku.edu/hexacoral/anemone2/index.cfm.

Distribution

States

Queensland

Extra Distribution Information

Japan, Papua New Guinea, Fiji.

IMCRA

Northeast Shelf Transition (41)

Ecological Descriptors

Marine.

Diagnosis

Column pyramidal to elongate and smooth, to 55 mm length. Column whitish-beige, orange-pink, or green. Narrow pedal disc, limbus hardly recognizable. Proximal part of column in some specimens pigmented red. Oral disc narrow to wide. 48 tentacles arrayed in 4 cycles. Tentacles in first, second, and third cycles ramified in branches of up to three orders. Proximal secondary branches of first, second, and third tentacle cycles short. Actinopharyx with 2 deep siphonoglyphs. 24 pairs of mesenteries in 3 cycles, first two cycles usually perfect. Retractor muscles diffuse and strong.

General References

Fautin, D.G. 2011. Hexacorallians of the World. http://geoportal.kgs.ku.edu/hexacoral/anemone2/index.cfm

History of changes