Cuticulata

Anemones with fine cuticles Published 26 July 2023 For all their familiarity to anyone who has spent much time observing life on the seashore, sea anemones can be a surprisingly difficult group of animals to define. Only a single feature distinctive to the order has been identified to date: the presence of a triad of… Continue reading Cuticulata

Faviinae

A brain explosion Published 3 September 2012 For today’s random taxon, I drew the Faviinae. This is a subfamily within the Faviidae, commonly known as ‘brain corals’ and recognised as an important family among the tropical reef-builders. Families of corals have generally been distinguished by the arrangement and morphology of skeletal structures within the coral… Continue reading Faviinae

Published
Categorised as Anthozoa

Faviina

Belongs within: Scleractinia.Contains: Faviinae, Merulinidae, Mussidae, Pectiniidae, Fungiicae, Montastreinae, Madrepora. The Faviina are a group of corals characterised by septa formed of one or more fan systems of simple or compound trabeculae, with synapticulae absent and disseptiments well developed. Septal margins are regularly dentate (Cairns 2002). Representatives include the Oculinidae in which corallites are widely… Continue reading Faviina

Published
Categorised as Anthozoa

Octocorallia

Belongs within: Anthozoa.Contains: Nephtheidae, Gorgoniidae, Calcaxonia, Alcyoniidae, Plexauridae. The Octocorallia, octocorals, are a well-defined group of mostly colonial cnidarians with polyps with eight tentacles and eight mesenteries, and often with pinnules on the tentacles (Daly et al. 2007). Past classifications of the octocorals have often recognised a distinction between the Gorgonaria (with a horny or… Continue reading Octocorallia

Published
Categorised as Anthozoa

Madrepora

Belongs within: Faviina. Madrepora is a genus of stony corals forming branched colonies. <==Madrepora Linnaeus 1758L58 |–M. (Madrepora)G20 | |–M. (M.) damicornisG20 | |–M. (M.) oculata Linnaeus 1758G20, L58 | `–M. (M.) prolifera [incl. M. muricata]G20 `–M. (Explanaria)G20 |–M. (E.) conglomerataG20 `–M. (E.) infundibulumG20 Madrepora incertae sedis: M. acetabulum Linnaeus 1758L58 M. ananas Linnaeus 1758L58… Continue reading Madrepora

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Categorised as Anthozoa

Pennatulacea

Belongs within: Calcaxonia. The Pennatulacea, sea pens, are octocorals in which the colony is organised around a central axis anchored in soft sediment. Characters (from Daly et al. 2007): Colonies developing from anaxial polyp (oozooid) differentiated into bulbous peduncle, and distal rachis bearing secondary polyps. Colony usually supported by internal, rod-like axis of non-scleritic calcite.… Continue reading Pennatulacea

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Categorised as Anthozoa

Gorgoniidae

Belongs within: Octocorallia. The Gorgoniidae are gorgonian corals with retractile polyps and an axis of gorgonin surrounding a narrow, hollow, cross-chambered central core (Daly et al. 2007). <==Gorgoniidae |–Antillogorgia bipinnataRB14 |–Gorgonoid banmiti Giammona & Stanton 1980NS93 `–Gorgonia Linnaeus 1758L58 |–G. aenea Linnaeus 1758L58 |–G. antipathes Linnaeus 1758L58 |–G. bertoloniR26 |–G. ceratophyta Linaneus 1758L58 |–G. clavata… Continue reading Gorgoniidae

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Categorised as Anthozoa

Alcyoniidae

Belongs within: Octocorallia. The Alcyoniidae are fleshy or membranous soft corals in which the polyps are not arranged in clusters. <==Alcyoniidae |–Anthomastus grandiflorusMG-H11, BP14 |–EleutherobiaMG-H11 |–InflatocalyxMG-H11 |–Atractosella cataractaca Bengtson 1981NS93 `–Alcyonium Linnaeus 1758L58 |–A. acaulePP64 |–A. arboreum Linnaeus 1758L58 |–A. clavellinum Risso 1826R26 |–A. digitatum Linnaeus 1758L58 |–A. domunculaD01 |–A. figusR26 [=Polyclinum (Aplidium) ficusG20] |–A.… Continue reading Alcyoniidae

Published
Categorised as Anthozoa

Isididae

Belongs within: Calcaxonia. The Isididae, bamboo corals, are gorgonians possessing a segmented axis of calcareous internodes divided by proteinaceous nodes of pure gorgonin (Daly et al. 2007). Isididae |–AcanellaMG-H11 |–Annisis sprightly Alderslade 1998MG-H11 |–LepisidisMG-H11 |–MinuisisMG-H11 |–Tethrisis suzannae Alderslade 1998MG-H11 |–Keratoisis Wright 1869 [Keratoisidinae]OHO04 |–MopseaMG-H11 | |–M. encrinula (Lamarck 1815)MG-H11 | `–M. mediterranea Risso 1826R26 |–IsidellaBP14… Continue reading Isididae

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Categorised as Anthozoa

Actiniaria

Belongs within: Hexacorallia.Contains: Actinostoloidea, Actinioidea, Metridioidea, Edwardsiidae. The Actiniaria, sea anemones, are a diverse group of soft-bodied anthozoans characterised by the presence of three triangular, apical flaps on the nematocysts that flex outwards during discharge (Rodríguez et al. 2014). <==Actiniaria [Actiniae, Athenaria, Nynantheae]RB14 |–Enthemonae [Acontiaria, Mesomyaria, Ptychodacteae, Ptychodactiaria, Thenaria]RB14 | | i. s.: SpongiactinidaeRB14 |… Continue reading Actiniaria

Published
Categorised as Anthozoa