| Ring-tentacle anemone | |
|---|---|
 | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Cnidaria |
| Class: | Hexacorallia |
| Order: | Actiniaria |
| Family: | Isanthidae |
| Genus: | Isanthus |
| Species: | I. capensis |
| Binomial name | |
| Isanthus capensis Carlgren, 1938 [1] | |
The ring-tentacle anemone (Isanthus capensis) is a species of sea anemone in the family Isanthidae. [2]
The ring-tentacle anemone grows up to 1 cm in diameter. It is a small solitary anemone with numerous short striped tentacles and having stripes radiating out from its mouth. It is usually brown or greenish and its body column is smooth. [3]
It has so far been found only on the Atlantic coast of the Cape Peninsula of South Africa. It appears to be endemic to this area, and lives from the intertidal zone down to about 5m under water.
This anemone is found between rocks and on seaweeds. It feeds on plankton. [3]
Actinia fragacea, commonly known as the strawberry anemone, is a species of sea anemone of the order Actiniaria, that occurs from Norway to Africa, including adjacent islands and the Mediterranean. It is generally found on rocks of the lower shoreline and depths up to 8–10 metres (26–33 ft).
Sea anemones are a group of predatory marine invertebrates constituting the order Actiniaria. Because of their colourful appearance, they are named after the Anemone, a terrestrial flowering plant. Sea anemones are classified in the phylum Cnidaria, class Anthozoa, subclass Hexacorallia. As cnidarians, sea anemones are related to corals, jellyfish, tube-dwelling anemones, and Hydra. Unlike jellyfish, sea anemones do not have a medusa stage in their life cycle.
Corynactis annulata, or the strawberry anemone, is a bright pink colonial anthozoan similar in body form to sea anemones and scleractinian stony corals. This species is a solitary animal of the order Corallimorpharia.
The brooding anemone, Halianthella annularis, is a species of sea anemone in the family Halcampidae,.
Anthothoe chilensis, or striped anemone, is a species of sea anemones in the family Sagartiidae.
Anthostella stephensoni, the violet-spotted anemone, is a species of sea anemone in the family Actiniidae.
Bunodosoma capense, commonly known as the knobbly anemone, is a species of sea anemone in the family Actiniidae.
Pseudactinia flagellifera, the false plum anemone, is a species of sea anemone in the family Actiniidae. It is also a member of the kingdom, Animalia.
Anthopleura michaelseni, commonly known as the long-tentacled anemone or crevice anemone, is a species of sea anemone in the family Actiniidae. It is native to very shallow water round the coasts of southern Africa between Lüderitz and Durban.
Korsaranthus natalensis, commonly known as the spinnaker anemone or the candy-striped anemone, is a species of sea anemone in the family Actiniidae. It is the only member of its genus.
The sandy anemone is a species of sea anemone in the family Actiniidae. It is native to very shallow water round the coasts of southern Africa between Luderitz and Durban.
The walking anemone, also known as the hedgehog anemone or sock anemone, is a species of sea anemones in the order Actiniaria. It is the only member of its genus, Preactis.
The multicoloured sea fan is a species of gorgonian sea fan in the family Melithaeidae.
The Cape zoanthid is a species of zoanthid in the family Parazoanthidae.
The burrowing anemone is a species of tube-dwelling anemone in the family Cerianthidae.
Balanophyllia bonaespei is a species of solitary cup coral, a stony coral in the family Dendrophylliidae. It is an azooxanthellate species that does not contain symbiotic dinoflagellates in its tissues as most corals do.
The cauliflower soft coral is a species of colonial soft coral in the family Nephtheidae.
Carybdea murrayana Haeckel, 1880, also previously known as Carybdea branchi, the South African box jellyfish, is a venomous species of cnidarian, in the small family Carybdeidae within the class Cubozoa.
Cirriformia capensis, commonly known as the orange thread-gilled worm, is a species of marine polychaete worm in the family Cirratulidae.
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