| Acryptolaria | |
|---|---|
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| Annals of the South African Museum - Annale van die Suid-Afrikaanse Museum (1966) | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Cnidaria |
| Class: | Hydrozoa |
| Order: | Leptothecata |
| Family: | Lafoeidae |
| Genus: | Acryptolaria Norman, 1875 |
| Species | |
See text | |
Acryptolaria is a genus of hydrozoans in the family Lafoeidae.
The following species are recognized in the genus Acryptolaria: [1]
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.
Porpita porpita, or blue button, is a marine organism consisting of a colony of hydroids found in the warmer, tropical and sub-tropical waters of the Pacific, Atlantic, and Indian oceans, as well as the Mediterranean Sea and eastern Arabian Sea. It was first identified by Carl Linnaeus in 1758, under the basionym Medusa porpita. In addition, it is one of the two genera under the suborder Chondrophora, which is a group of cnidarians that also includes Velella. The chondrophores are similar to the better-known siphonophores, which includes the Portuguese man o' war, or Physalia physalis. Although it is superficially similar to a jellyfish, each apparent individual is actually a colony of hydrozoan polyps. The taxonomic class, Hydrozoa, falls under the phylum Cnidaria, which includes anemones, corals, and jellyfish, which explains their similar appearances.
Eudendrium is a large genus of hydroids (Hydrozoa), one of two in the family Eudendriidae. These animals are marine cnidarias in the family Eudendriidae.
Sertulariidae is a family of hydrozoans.
Sertularella is a genus of hydroids in the family Sertulariidae.
Halopterididae is a family of hydrozoans.
Plumularia is a genus of hydrozoans in the family Plumulariidae.
Aglaophenia is a genus of hydrozoans in the family Aglaopheniidae.
Porpita prunella is a marine species of hydrozoan organisms within the family Porpitidae. It consists of colonies of zooids. Very little is known about this species, as there have been no confirmed sightings since its discovery in 1801 and naming by Haeckel in 1888. Being in the chondrophore group, it is likely that its behaviour is similar to the other species of the genera in the family. However there are also serious doubts as to its very existence as a separate species and may in fact be a synonym for Porpita porpita instead.
The Diphyidae are a family of siphonophores. These are colonial siphonophores with two nectophores arranged one behind the other. The front one includes a somatocyst, while the hind one does not. The somatocyst often contains an oil droplet for buoyancy control. A nectosac in each nectophore allows the organism to swim efficiently.
Aplanulata is a suborder of Hydrozoa, a class of marine and freshwater invertebrates belonging to the phylum Cnidaria. The group have lost its planula larval stage, and the only remnants of the medusa stage is when they functions as gonophores attached to the polyp.
Campanularia is a genus of hydrozoans, in the family Campanulariidae.
Acryptolaria elegans is a species of hydrozoan in the family Lafoeidae. It is found in the Gulf of Mexico.
Aeginura grimaldii is a species of deep sea hydrozoan of the family Aeginidae. It is found in the north-eastern Atlantic Ocean, Pacific Ocean, and the Arctic Ocean. It has a depth range of 660-1200m deep. Live specimens are bright reddish in color, with pale tentacles, and a light red globous capsule dome containing the dark colored red body. It usually measures no more than 4.5cm from the peak of the bell to the end of the tentacles.
Lafoeidae is a family of hydrozoans.
Symplectoscyphidae is a family of cnidarians in the order Leptothecata.
Billardia is a genus of cnidarians belonging to the family Lafoeidae.
Zygophylax is a genus of cnidarians belonging to the family Zygophylacidae.
Staurotheca is a genus of cnidarians belonging to the monotypic family Staurothecidae.
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