| Echinoptilidae | |
|---|---|
 | |
| Actinoptilum molle | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Cnidaria |
| Class: | Anthozoa |
| Order: | Pennatulacea |
| Family: | Echinoptilidae Hubrecht, 1885 |
| Genera | |
Echinoptilidae is a family of sea pens, a member of the subclass Octocorallia in the phylum Cnidaria.
Colonies are cylindrical without axis, and the rachis is generally longer than the peduncle. The colony may be radially or bilaterally symmetrical. Autozooids have non-retractile, bifurcated calyces with many sclerites. [1]
Indo-West Pacific to south western Africa in shallow sublittoral to over 800m depth. [1]
The World Register of Marine Species list the following genera: [2]
Sea pens are colonial marine cnidarians belonging to the order Pennatulacea. There are 14 families within the order; 35 extant genera, and it is estimated that of 450 described species, around 200 are valid. Sea pens have a cosmopolitan distribution, being found in tropical and temperate waters worldwide, as well as from the intertidal to depths of more than 6100 m. Sea pens are grouped with the octocorals, together with sea whips (gorgonians).
The Stichopodidae are a family of sea cucumbers, part of the order Synallactida.
Marginella is a very large genus of small tropical and temperate sea snails, marine gastropod molluscs in the subfamily Marginellinae of the family Marginellidae, the margin snails. It is the type genus of the family.
Neritidae, common name the nerites, is a taxonomic family of small to medium-sized saltwater and freshwater snails which have a gill and a distinctive operculum.
Jasus is a genus of spiny lobsters which live in the oceans of the Southern Hemisphere. They have two distinct "horns" projecting from the front of the carapace, but lack the stridulating organs present in almost all other genera of spiny lobsters. Like all spiny lobsters, they lack claws, and have long stout antennae which are quite flexible.
Carcharias is a genus of sand tiger sharks belonging to the family Odontaspididae.
The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive list of names of marine organisms.
Leminda is a genus of nudibranchs in the family Lemindidae.
Kermia is a genus of sea snails, marine gastropod mollusks in the family Raphitomidae.
Clionella is a genus of sea snails, marine gastropod mollusks in the family Clavatulidae.
Striatoguraleus is a genus of sea snails, marine gastropod mollusks in the family Horaiclavidae.
Perrinia is a genus of sea snails, marine gastropod mollusks in the family Chilodontaidae.
Vaceuchelus is a genus of sea snails, marine gastropod molluscs in the family Chilodontaidae.
Tectus is a genus of sea snails, marine gastropod mollusks in the family Tegulidae.
Hybochelus is a genus of sea snails, marine gastropod mollusks in the family Chilodontaidae.
Septaria borbonica is a species of freshwater snail, a gastropod mollusk in the family Neritidae.
Abyssochrysos is a genus of bathyal sea snails, marine gastropod mollusks in the family Abyssochrysidae.
Protoma is a genus of sea snails, marine gastropod mollusks in the family Turritellidae.
Actinoptilum is a genus of sea pen in the family Echinoptilidae. It is monotypic with a single species, Actinoptilum molle, commonly known as the radial sea pen or purple sea pen, which is found off the coasts of South Africa.
Clypeostoma is a genus of mostly small deep water sea snails, marine gastropod mollusks in the family Chilodontaidae.
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