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Brittle star

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Brittle stars or ophiuroids are echinoderms in the class Ophiuroidea closely related to starfish. [1]

74 relations: Amphilepididae, Amphiuridae, Ampulla, Ancient Greek, Anti-predator adaptation, Asexual reproduction, Astrocladus euryale, Autotomy, Basket star, Beech, Bioluminescence, Brackish water, Calcite, Calcium carbonate, Carmel Formation, Cecum, Cilium, Clade, Coelom, Defecation, Detritivore, Echinoderm, Encyclopædia Britannica, Epidermis (zoology), Fishkeeping, Gamete, Gnathophiurina, Gonad, Gorgonocephalidae, Gorgonocephalus, Ingestion, Live rock, Liver, Madreporite, New Latin, New Zealand, Oegophiurida, Ophiacanthidae, Ophiactidae, Ophiactis savignyi, Ophiocomidae, Ophiocomina nigra, Ophiodermatidae, Ophiolepididae, Ophionereididae, Ophionereis reticulata, Ophiothrix fragilis, Ophiotrichidae, Ophiura ophiura, Ophiurida, ..., Ophiuridae, Ophiurina, Ordovician, Ossicle (echinoderm), Póvoa de Varzim, Phagocyte, Phrynophiurida, Pollen, Polyp, Portugal, Present, Reef, Regeneration (biology), Scavenger, Sequential hermaphroditism, Starfish, Symmetry in biology, Syncytium, Trace fossil, Tube feet, Utah, Viviparity, Water vascular system, World Register of Marine Species. Expand index (24 more) »


Amphilepididae are a small family of brittle stars of the suborder Gnathophiurina.

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Amphiuridae (commonly called long-armed burrowing brittle stars or burrowing brittle stars) are a large family of brittle stars of the suborder Gnathophiurina.

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An ampulla (plural ampullae) was, in Ancient Rome, a "small nearly globular flask or bottle, with two handles" (OED).

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Ancient Greek

The Ancient Greek language includes the forms of Greek used in ancient Greece and the ancient world from around the 9th century BC to the 6th century AD.

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Anti-predator adaptation

Anti-predator adaptations are mechanisms developed through evolution that assist prey organisms in their constant struggle against predators.

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Asexual reproduction

Asexual reproduction is a type of reproduction by which offspring arise from a single organism, and inherit the genes of that parent only; it does not involve the fusion of gametes, and almost never changes the number of chromosomes.

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Astrocladus euryale

Astrocladus euryale, the basket star, or gorgon's head is a brittlestar of the family Gorgonocephalidae found in the coastal waters of South Africa from the west coast of the Cape Peninsula to about Algoa Bay.

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Autotomy (from the Greek auto- "self-" and tome "severing", αὐτονομία) or self-amputation is the behaviour whereby an animal sheds or discards one or more of its own appendages, usually as a self-defense mechanism to elude a predator's grasp or to distract the predator and thereby allow escape.

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Basket star

Basket stars, sometimes referred to as a Shetland Argus, are a taxon of brittle stars.

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Beech (Fagus) is a genus of deciduous trees in the family Fagaceae, native to temperate Europe, Asia, and North America.

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Bioluminescence is the production and emission of light by a living organism.

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Brackish water

Brackish water is water that has more salinity than fresh water, but not as much as seawater.

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Calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (CaCO3).

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Calcium carbonate

Calcium carbonate is a chemical compound with the formula CaCO3.

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Carmel Formation

The Carmel Formation is a geologic formation in the San Rafael Group that is spread across the U.S. states of Wyoming, Utah, Colorado, north east Arizona and New Mexico.

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The cecum or caecum (plural ceca; from the Latin caecus meaning blind) is an intraperitoneal pouch that is considered to be the beginning of the large intestine.

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A cilium (the plural is cilia) is an organelle found in eukaryotic cells.

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A clade (from κλάδος, klados, "branch"), also known as monophyletic group, is a group of organisms that consists of a common ancestor and all its lineal descendants, and represents a single "branch" on the "tree of life".

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The coelom is the main body cavity in most animals and is positioned inside the body to surround and contain the digestive tract and other organs.

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Defecation is the final act of digestion, by which organisms eliminate solid, semisolid, or liquid waste material from the digestive tract via the anus.

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Detritivores, also known as detrivores, detritophages, detritus feeders, or detritus eaters, are heterotrophs that obtain nutrients by consuming detritus (decomposing plant and animal parts as well as feces).

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Echinoderm is the common name given to any member of the phylum Echinodermata (from Ancient Greek, ἐχῖνος, echinos – "hedgehog" and δέρμα, derma – "skin") of marine animals.

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Encyclopædia Britannica

The Encyclopædia Britannica (Latin for "British Encyclopaedia"), published by Encyclopædia Britannica, Inc., is a general knowledge English-language encyclopaedia.

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Epidermis (zoology)

In zoology, the epidermis is an epithelium (sheet of cells) that covers the body of an eumetazoan (animal more complex than a sponge).

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Fishkeeping is a popular hobby, practiced by aquarists, concerned with keeping fish in a home aquarium or garden pond.

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A gamete (from Ancient Greek γαμετή gamete from gamein "to marry") is a haploid cell that fuses with another haploid cell during fertilization (conception) in organisms that sexually reproduce.

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The Gnathophiurina are a group of Ophiuroidea mostly treated as suborder (but at first as an order Gnathophiurida, and sometimes as infraorder of Ophiurina or not used at all).

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A gonad or sex gland or reproductive gland is a mixed gland that produces the gametes (sex cells) and sex hormones of an organism.

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Gorgonocephalidae is a family of basket stars.

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Gorgonocephalus is a genus of marine basket stars in the class Ophiuroidea.

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Ingestion is the consumption of a substance by an organism.

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Live rock

Live rock is rock from the ocean that has been introduced into a saltwater aquarium.

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The liver, an organ only found in vertebrates, detoxifies various metabolites, synthesizes proteins, and produces biochemicals necessary for digestion.

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The madreporite is a lightcolored calcareous opening used to filter water into the water vascular system of echinoderms.

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New Latin

New Latin (also called Neo-Latin or Modern Latin) was a revival in the use of Latin in original, scholarly, and scientific works between c. 1375 and c. 1900.

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New Zealand

New Zealand (Aotearoa) is a sovereign island country in the southwestern Pacific Ocean.

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The Oegophiurida are an order of brittle stars, class Ophiuroidea.

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Ophiacanthidae is a family of brittle stars.

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Ophiactidae are a family of brittle stars.

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Ophiactis savignyi

Ophiactis savignyi is a species of brittle star in the family Ophiactidae, commonly known as Savigny's brittle star or the little brittle star.

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Ophiocomidae are a family of brittle stars of the suborder Ophiurina.

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Ophiocomina nigra

Ophiocomina nigra, commonly known as the black brittle star or black serpent star, is a species of marine invertebrate in the order Ophiurida.

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Ophiodermatidae are a family of brittle stars in the suborder Ophiurina.

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Ophiolepididae are a family of brittle stars of the suborder Ophiurina.

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Ophionereididae are a family of brittle stars.

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Ophionereis reticulata

Ophionereis reticulata, the reticulated brittle star, is a brittle star in the family Ophionereididae.

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Ophiothrix fragilis

Ophiothrix fragilis is a species of brittle star in the order Ophiurida.

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Ophiotrichidae are a family of ophiurid brittle stars within the infraorder Gnathophiurina.

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Ophiura ophiura

Ophiura ophiura or the serpent star is a species of brittle star in the order Ophiurida.

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The Ophiurida are an order of echinoderms within the class Ophiuroidea.

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Ophiuridae are a large family of brittle stars of the suborder Ophiurina.

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Ophiurina are a suborder of brittle stars containing the majority of living brittle star species.

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The Ordovician is a geologic period and system, the second of six periods of the Paleozoic Era.

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Ossicle (echinoderm)

Ossicles are small calcareous elements embedded in the dermis of the body wall of echinoderms.

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Póvoa de Varzim

Póvoa de Varzim, also spelled Povoa de Varzim, is a Portuguese city in Northern Portugal and sub-region of Greater Porto.

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Phagocytes are cells that protect the body by ingesting harmful foreign particles, bacteria, and dead or dying cells.

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The Phrynophiurida (formerly called Euryalae) are an order of brittle stars containing the basket stars.

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Pollen is a fine to coarse powdery substance comprising pollen grains which are male microgametophytes of seed plants, which produce male gametes (sperm cells).

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A polyp in zoology is one of two forms found in the phylum Cnidaria, the other being the medusa.

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Portugal, officially the Portuguese Republic (República Portuguesa),In recognized minority languages of Portugal: Portugal is the oldest state in the Iberian Peninsula and one of the oldest in Europe, its territory having been continuously settled, invaded and fought over since prehistoric times.

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The present (or here and now) is the time that is associated with the events perceived directly and in the first time, not as a recollection (perceived more than once) or a speculation (predicted, hypothesis, uncertain).

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A reef is a bar of rock, sand, coral or similar material, lying beneath the surface of water.

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Regeneration (biology)

In biology, regeneration is the process of renewal, restoration, and growth that makes genomes, cells, organisms, and ecosystems resilient to natural fluctuations or events that cause disturbance or damage.

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Scavenging is both a carnivorous and a herbivorous feeding behavior in which the scavenger feeds on dead animal and plant material present in its habitat.

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Sequential hermaphroditism

Sequential hermaphroditism (called dichogamy in botany) is a type of hermaphroditism that occurs in many fish, gastropods, and plants.

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Starfish or sea stars are star-shaped echinoderms belonging to the class Asteroidea.

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Symmetry in biology

Symmetry in biology is the balanced distribution of duplicate body parts or shapes within the body of an organism.

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A syncytium or symplasm (plural syncytia; from Greek: σύν (syn).

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Trace fossil

A trace fossil, also ichnofossil (ιχνος ikhnos "trace, track"), is a geological record of biological activity.

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Tube feet

Tube feet are small active tubular projections on the oral face of an echinoderm, whether the arms of a starfish, or the undersides of sea urchins, sand dollars and sea cucumbers.

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Utah is a state in the western United States.

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Among animals, viviparity is development of the embryo inside the body of the parent, eventually leading to live birth, as opposed to reproduction by laying eggs that complete their incubation outside the parental body.

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Water vascular system

The water vascular system is a hydraulic system used by echinoderms, such as sea stars and sea urchins, for locomotion, food and waste transportation, and respiration.

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World Register of Marine Species

The World Register of Marine Species (WoRMS) is a database that aims to provide an authoritative and comprehensive list of names of marine organisms.

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Redirects here:

Brittle Star, Brittle Stars, Brittle seastar, Brittle stars, Brittle-star, Brittlestar, Ophiodea, Ophiurans, Ophiuroid, Ophiuroidea, Ophiuroidia, Ophiuroids, Ophuiroidea.


[1] https://en.wikipedia.org/wiki/Brittle_star

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