| Astrosarkus | |
|---|---|
 | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Echinodermata |
| Class: | Asteroidea |
| Order: | Valvatida |
| Family: | Oreasteridae |
| Genus: | Astrosarkus Mah, 2003 [1] |
| Species: | A. idipi |
| Binomial name | |
| Astrosarkus idipi Mah, 2003 [1] | |
Astrosarkus idipi is a species of sea stars in the family Oreasteridae. It is the sole species in the genus Astrosarkus. [1] It is sometimes referred to as a Pumpkin sea star. [2]
It is a big sea star with a subpentagonal and very plump body. It is quite recognizable because of its bright orange color, and globally displays the color, texture and size of a pumpkin. It is thus a very big star, measuring approximately 30 cm (12 in) in diameter for 10 cm (4 in) high. The lower face is white dirtied with orange, and crossed by 5 ambulacral grooves. Inside the body, the skeleton is strikingly reduced: the main part of the mass of the star is muscular. [3]
This sea star lives in the sub-reef zone, between 67 and 200 m (220 and 656 ft) deep, and seems rather widely distributed in the Indo-pacific, From Reunion island to Samoa. However, it is still poorly known, and only 6 specimens have been collected to this day. [3]
Along with some other deep-sea creatures, this sea star has been used in Japan as a model for a sushi-shaped gachapon toy. [4] There, the species is referred as ryugu sakura hitode, which means "dragon palace cherry blossom sea star". [4]
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.
The Asterinidae are a large family of sea stars in the order Valvatida.
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.
The Velatida are an order of sea stars containing about 200 species in five families. These sea stars normally have thick bodies with large discs.
Choriaster is monotypic genus in the family Oreasteridae containing the single species Choriaster granulatus commonly known as the granulated sea star. Other common names include big-plated sea star and doughboy starfish. This species is harmless to humans.
The Oreasteridae are a family of sea stars in the class Asteroidea.
Pteraster tesselatus, the slime star or cushion star, is a species of starfish in the family Pterasteridae found in the North Pacific.
Echinaster spinulosus, the small spine sea star, is a species of sea star found in shallow parts of the western Atlantic Ocean, the Caribbean Sea and Gulf of Mexico.
Poraniopsis inflata, the spiny sea star, is a species of starfish in the family Poraniidae. It is native to the Pacific Ocean and is found in deep water off the coast of North America.
Trophodiscus almus is a species of starfish in the family Astropectinidae. It is found in fairly deep waters in the Sea of Okhotsk, the Sea of Japan and around the Japanese island of Hokkaido. It is very unusual among starfish in that it broods its young on its upper surface. Its common name in Japanese is "Komochi-momiji".
Bathyporania ascendens is a species of starfish in the family Poraniidae, and the only species of the genus Bathyporania. It is native to the Pacific Ocean and is found in deep water off the coast of North America.
Clavaporania fitchorum is a species of starfish in the family Poraniidae. It is the only known species of the genus Clavaporania. It is native to the South Pacific Ocean and is found in deep water off the coast of Australia.
Hippasteria muscipula is one of twelve species of deep-sea sea star in the genus Hippasteria, which is in the family Goniasteridae.
Sthenaster emmae is a species of deep sea corallivorous sea star. It is the only known species in the genus Sthenaster. This species in particular is found in the tropical Atlantic.
Parvulastra vivipara, the Tasmanian live-bearing seastar, is a tiny, uniformly orange-yellow seastar, up to 15 mm (0.6 in) across. The species usually has five short arms and is a rounded, pentagon shape. Morphological variation is common and three, four or six arms are occasionally present. It is endemic to coastal waters in southeast Tasmania.
Heliaster microbrachius is a species of Asteroidea in the family Heliasteridae.
Euretaster insignis, commonly known as the striking sea star, is a species of starfish in the family Pterasteridae found in the central west Pacific Ocean. It is one of only three species in the order Velatida to be found in shallow water in the tropics. The young are brooded in a cavity underneath a "supradorsal" membrane.
Labidiaster radiosus, the fragile sticky ray star, is a large species of starfish in the family Heliasteridae and was first described by Lütken in 1871. It is found in the waters of southern South America to Sub-Antarctica and the Antarctic Peninsula.
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