| Pentagonaster duebeni | |
|---|---|
 | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Echinodermata |
| Class: | Asteroidea |
| Order: | Valvatida |
| Family: | Goniasteridae |
| Genus: | Pentagonaster |
| Species: | P. duebeni |
| Binomial name | |
| Pentagonaster duebeni Gray, 1847 | |
| Synonyms [1] | |
| |
Pentagonaster duebeni is a species of starfish within the family Goniasteridae. [2]
Pentagonaster duebeni is distributed off the Australian coasts from Shark Bay to Tasmania and southern Queensland. [3] Its preferred habitat is exposed and sheltered reefs at depths up to 160 meters below sea level. [4]
Pentagonaster duebeni is a 5 armed flattened starfish with blunted arms separated by rounded arcs. Surface is layered with polygonal plates colored red and orange separated with yellow-white incisions. Arms are equal in length to the central disc, [4] reaching a lengths up to 8 centimeters. [5] Sizes reach up to 8 centimeters in width. [4] [3] P. duebeni diet consists of sponges, bryozoans, and other invertebrates. [3] [5]
Specimens from southern Western Australian show colors in various shades of dark to light red plates with raised dorsal plates. Sizes have been recorded at over 11 centimeters in width with slightly longer arm lengths. [3]
Starfish or sea stars are star-shaped echinoderms belonging to the class Asteroidea. Common usage frequently finds these names being also applied to ophiuroids, which are correctly referred to as brittle stars or basket stars. Starfish are also known as asteroids due to being in the class Asteroidea. About 1,900 species of starfish live on the seabed in all the world's oceans, from warm, tropical zones to frigid, polar regions. They are found from the intertidal zone down to abyssal depths, at 6,000 m (20,000 ft) below the surface.
The Valvatida are an order of starfish in the class Asteroidea, which contains 695 species in 172 genera in 17 families.
Coscinasterias calamaria, or the eleven-armed sea star, is a starfish in the family Asteriidae. It was thought to be endemic to southern Australia and New Zealand but has since been documented as occurring in the Cape Peninsula as well. It is found around low tide levels and deeper, under rocks and wandering over seaweed in pools.
Astropecten aranciacus, the red comb star, is a sea star of the family Astropectinidae. It is native to the east Atlantic Ocean and the Mediterranean Sea.
Goniasteridae constitute the largest family of sea stars, included in the order Valvatida. They are mostly deep-dwelling species, but the family also include several colorful shallow tropical species.
Culcita novaeguineae is a species of starfish. It has short arms and an inflated appearance and resembles a pentagonal pincushion. It is variable in colour and can be found in tropical warm waters in the Indo-Pacific.
The Asterozoa are a subphylum in the phylum Echinodermata. Characteristics include a star-shaped body and radially divergent axes of symmetry. The subphylum includes the class Asteroidea, the class Ophiuroidea, and the extinct order Somasteroidea.
Oreaster reticulatus, commonly known as the red cushion sea star or the West Indian sea star, is a species of marine invertebrate, a starfish in the family Oreasteridae. It is found in shallow water in the western Atlantic Ocean and the Caribbean Sea.
The purple sunstar, northern sunstar, or smooth sun star, Solaster endeca, is a species of starfish in the family Solasteridae.
Callopatiria granifera, the red starfish, is a southern African species of starfish in the family Asterinidae.
Fromia monilis, common name necklace starfish or tiled starfish, is a species of starfish belonging to the family Goniasteridae.
Ophiura albida is a species of brittle star in the order Ophiurida. It is typically found on the seabed in the north eastern Atlantic Ocean and in the Mediterranean Sea and is sometimes known as the serpent's table brittle star.
Nepanthia belcheri is a species of starfish in the family Asterinidae. It is found in shallow water in Southeast Asia and northeastern Australia. It is an unusual species in that it can reproduce sexually or can split in two by fission to form two new individuals. As a result, it has varying numbers of arms, and Hubert Lyman Clark, writing in 1938, stated, "It is a literal truth that no two of the 56 specimens at hand, nearly all from Lord Howe Island, are exactly alike in number, size and form of arms".
Pentagonaster pulchellus, commonly known as the biscuit star or sometimes the jewelled star, is a species of starfish endemic to New Zealand, where it is common in Cook Strait and around the coasts of the South Island. It has also been recorded from the Chatham Islands and in the Campbell Plateau down to the Snares Islands.
Asterodiscides truncatus, the firebrick starfish, is a species of five-armed starfish in the family Asterodiscididae. It is native to eastern and southern Australia, the Norfolk Ridge and the Kermadec Islands of New Zealand.
Coscinasterias muricata is a species of starfish in the family Asteriidae. It is a large 11-armed starfish and occurs in shallow waters in the temperate western Indo-Pacific region.
Asterias versicolor is a species of starfish native to the southern coasts of Japan southwards to the South China Sea.
Thromidia catalai, sometimes called the heavy starfish, is a species of starfish in the family Mithrodiidae in the order Valvatida. It is native to the Indo-Pacific region. Thromidia catalai is one of the largest and heaviest starfishes in the world. It is reported to weigh as much as 6 kg (13 lb) and have a diameter of 60 to 65 cm. This species was first described by the Australian biologists E. C. Pope and F. W. E. Rowe in 1977, the type locality being New Caledonia.
Rathbunaster is a monospecific genus of sea stars in the family Asteriidae. The genus name was given by Walter Kenrick Fisher to honor the starfish biologist Richard Rathbun of the Smithsonian Institution. He originally ranged this genus under the family Pycnopididae, synonymous with Asteriidae.