| Primnoidae | |
|---|---|
 | |
| Narella sp. | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Cnidaria |
| Class: | Anthozoa |
| Order: | Alcyonacea |
| Suborder: | Calcaxonia |
| Family: | Primnoidae Milne Edwards, 1857 [1] |
| Genera | |
Primnoidae is a family of soft corals.
| Primnoidae | |
|---|---|
| | |
| Narella sp. | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Cnidaria |
| Class: | Anthozoa |
| Order: | Alcyonacea |
| Suborder: | Calcaxonia |
| Family: | Primnoidae Milne Edwards, 1857 [1] |
| Genera | |
Primnoidae is a family of soft corals.
The World Register of Marine Species includes the following genera in the family: [2]
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Corallimorpharia is an order of marine cnidarians closely related to stony or reef building corals (Scleractinia). They occur in both temperate and tropical climates, although they are mostly tropical. Temperate forms tend to be very robust, with wide and long columns, whereas tropical forms tend to have very short columns with a wide oral disc and very short tentacles. The tentacles are usually arranged in rows radiating from the mouth. Many species occur together in large groups, although there are recorded instances of individuals. In many respects, they resemble the stony corals, except for the absence of a stony skeleton. Morphological and molecular evidence suggests that they are very closely related to stony corals.
Acanthastrea is a genus of large polyp stony corals in the family Lobophylliidae. The colonies are massive and usually flat. The corallites are either circular or angular in shape. The septa are thick near the wall of the corallite, becoming thin near the columella, and have tall teeth. The polyps are extended only at night.
Scleraxonia is a suborder of corals, a member of the phylum Cnidaria.
Melithaeidae is a family of corals in the suborder Scleraxonia. Members of the family are commonly known as sea fans and are found on reefs in the tropical regions of the Indo-Pacific.
Paragorgiidae is a family of corals, a member of the phylum Cnidaria.
Favia is a genus of reef-building stony corals in the family Mussidae. Members of the genus are massive or thickly encrusting colonial corals, either dome-shaped or flat, and a few are foliaceous. There is a great diversity of form even among individuals of the same species. The corallites project slightly above the surface of the coral and each has its own wall. In most species, the corallites are plocoid and in some, monocentric. The septa and costae linked to the corallite wall are well developed and covered by fine teeth. The polyps only extend and feed during the night. Each one has a small number of tapering tentacles which often have a darker coloured tip; these are called stinger tentacles, or sweeper tentacles. They use these to sweep the water to see if any other coral is in its area; if so, then they begin to sting the other coral. This is commonly known as coral war. Each coral is trying to make sure it has enough room around it so it can continue to grow and have more surface area for its offspring. The columella is parietal and spongy, and there are vesicles on both the endotheca and exotheca. Members of this genus are widespread in both the Atlantic Ocean and the Indo-Pacific.
Gorgoniidae is a family of soft corals, a member of the subclass Octocorallia in the phylum Cnidaria. Nearly all the genera and species are native to the east and west coasts of America.
Oculinidae is a family of colonial corals.
Astrocoeniidae is a family of stony corals. The family is distributed across the tropical and subtropical oceans worldwide.
Dendrophylliidae is a family of stony corals. Most members are azooxanthellate and thus have to capture food with their tentacles instead of relying on photosynthesis to produce their food. The World Register of Marine Species includes these genera in the family:
Meandrina is a genus of colonial stony coral in the family Meandrinidae. Corals in this genus form massive hemispherical heads or have large flat plates and can grow to a metre (yard) across. Sometimes it is referred to as.
Rhizangiidae is a family of stony corals in the order Scleractinia. This family is closely related to Oculinidae. Members of this family are non-reef building corals and reproduce from stolons. The corallites are small and the septa are simple.
Merulinidae is a family of reef-building stony corals.
Dipsastraea is a genus of stony corals in the family Merulinidae. Members of this genus are native to the Indo-Pacific region. They are zooxanthellate corals.
Montlivaltiidae is an extinct family of stony corals.
Callogorgia is a genus of soft corals in the family Primnoidae.
Callogorgia elegans is a species of soft corals in the family Primnoidae. It is found in the north-western Pacific Ocean.
Homophyllia is a genus of stony corals in the family Lobophylliidae.
Paragoniastrea is a genus of stony corals in the family Merulinidae.
Psammocora is a genus of stony coral in the monotypic family Psammocoridae. Species of this genus are also known as cat's paw coral.
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