Henricia oculata | |
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Scientific classification ![]() | |
Kingdom: | Animalia |
Phylum: | Echinodermata |
Class: | Asteroidea |
Order: | Spinulosida |
Family: | Echinasteridae |
Genus: | Henricia |
Species: | H. oculata |
Binomial name | |
Henricia oculata (Pennant, 1777) [1] | |
Synonyms [1] | |
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Henricia oculata, commonly known as the bloody Henry starfish, [2] is a species of starfish in the family Echinasteridae. It is native to northwestern Europe. It was first described as Asterias oculata by the British zoologist Thomas Pennant in 1777, later being transferred to the genus Henricia . [1]
Henricia oculata (NB: This translates from Latin as "eyed Henry") is a five-armed starfish that grows to a diameter of about 12 cm (5 in). It is rather rigid and the aboral (upper) surface feels rough due to there being numerous low spines under the skin. It is variable in colour, being dark red, brown, purple or yellowish, the outer portions of the arms sometimes being paler than the disc and inner portions. It is very similar in appearance to Henricia sanguinolenta , but tends to have more irregularly arranged dorsal spinelets that are more opaque. [3]
The species is found in the northeastern Atlantic Ocean, mainly around the coasts of the United Kingdom and Ireland. It also occurs in Guernsey, Jersey and northern France, and there have been isolated occurrences in Norway and the United States. [2] It is most common on the western coasts of the British Isles and occurs on rock, boulders, stones, shingle, gravel, and shelly substrates. Its depth range is from the low intertidal down to 50 m (160 ft) or more. [1]
Primarily a suspension feeder, H. oculata consumes suspended organic particles, detritus, sponges, hydroids and bryozoans, but the starfish can supplement these by everting its stomach to feed on other invertebrates. More than 90% of individuals of this species are associated with a parasitic copepod, Asterocheres lilljeborgi . [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 occur 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 Echinasteridae are a family of starfish in the monotypic order Spinulosida. The family includes eight genera and about 133 species found on the seabed in various habitats around the world.
Solaster paxillatus, the orange sun star, is a species of starfish found at varying depths in the northern Pacific Ocean. It is a natural predator of the starfish Asterias amurensis.
The common starfish, common sea star or sugar starfish is the most common and familiar starfish in the north-east Atlantic. Belonging to the family Asteriidae, it has five arms and usually grows to between 10–30 cm across, although larger specimens are known. The common starfish is usually orange or brownish in color, and sometimes violet; specimens found in deeper waters are pale. The common starfish is found on rocky and gravelly substrates where it feeds on mollusks and other benthic invertebrates.
Peringia ulvae, common name the Laver spire shell or mudsnail, is a European species of very small aquatic snail with gills and an operculum, a gastropod mollusk in the family Hydrobiidae.
Henricia is a large genus of slender-armed sea stars belonging to the family Echinasteridae. It contains about fifty species.
Phaxas pellucidus, the transparent razor shell, is a species of marine bivalve mollusc in the family Pharidae. It is found buried in the seabed in coastal waters of northwest Europe, often in great numbers.
Astropecten irregularis is a sea star of the family Astropectinidae. Common names include Sand sea star.
Asterias forbesi, commonly known as Forbes sea star, is a species of starfish in the family Asteriidae. It is found in shallow waters in the northwest Atlantic Ocean and the Caribbean Sea.
Anasterias rupicola is a species of starfish in the family Asteriidae. It is found in shallow waters in the Southern Ocean and sub-Antarctic Indian Ocean.
Asterina gibbosa, commonly known as the starlet cushion star, is a species of starfish in the family Asterinidae. It is native to the northeastern Atlantic Ocean and the Mediterranean Sea.
Sea star wasting disease or starfish wasting syndrome is a disease of starfish and several other echinoderms that appears sporadically, causing mass mortality of those affected. There are approximately 40 species of sea stars that have been affected by this disease. The disease seems to be associated with increased water temperatures in some locales, but not others. It starts with the emergence of lesions, followed by body fragmentation and death. In 2014 it was suggested that the disease is associated with a single-stranded DNA virus now known as the sea star-associated densovirus (SSaDV). Sea star wasting disease is still not fully understood.
Marthasterias is a genus of starfish in the family Asteriidae. It is monotypic and the only species in the genus is Marthasterias glacialis, commonly known as the spiny starfish. It is native to the eastern Atlantic Ocean.
Henricia lisa is a species of starfish in the family Echinasteridae found in deep water in the northern Atlantic Ocean.
Luidia magellanica is a species of starfish in the family Luidiidae. It is found in the southeastern Pacific Ocean on the coast of South America.
Meyenaster is a genus of starfish in the family Asteriidae. It is a monotypic genus and the only species is Meyenaster gelatinosus which was first described by the Prussian botanist and zoologist Franz Julius Ferdinand Meyen in 1834. It is found in the southeastern Pacific Ocean on the coasts of South America.
Henricia sexradiata is a species of starfish in the family Echinasteridae. It is native to the western Atlantic Ocean and the Gulf of Mexico.
Henricia ornata, the reticulated starfish, is a species of starfish in the family Echinasteridae. It is native to the southeastern Atlantic Ocean on the coast of South Africa, the type locality being the Cape of Good Hope.
Asterocheres lilljeborgi is a species of copepod in the family Asterocheridae. It is found in the British Isles and Scandinavia where it is a semi-parasite of starfish. First described as Asterocheres lilljeborgi in 1859 by the Norwegian marine biologist Jonas Axel Boeck, it is the type species of the genus.