Echinus (sea urchin) - Wikipedia
WEBEchinus is a genus of sea urchins. Sea urchins are echinoderms that are typically spherical or flattened with a covering of spine-like structures. Sea urchins tend to be important members of their ecosystems by grazing …
Sea urchin - Wikipedia
WEBSea urchins are members of the phylum Echinodermata, which also includes starfish, sea cucumbers, sand dollars, brittle stars, and crinoids. Like other echinoderms, they have five-fold symmetry (called pentamerism) and move by means of hundreds of tiny, transparent, adhesive " tube feet ".
Echinus esculentus - Wikipedia
WEBEchinus esculentus, the European edible sea urchin or common sea urchin, is a species of marine invertebrate in the Echinidae family. It is found in coastal areas of western Europe down to a depth of 1,200 m (3,900 ft). [ 3 ]
10+ Types of Sea Urchins - With Photos and Descriptions!
WEBNov 4, 2020 · In this AnimalWised article we're going to explain the main characteristics of sea urchins and the different types of sea urchins. What are sea urchins? Sea urchins (Echinoidea) are sea animals found from intertidal water to the deep ocean. They are known for their globe shape and spiked skin.
15 Types of Sea Urchins: Species, Identification, and Photos - TRVST
WEBApr 16, 2024 · Sea urchins belong to the Echinodermata phylum, including fellow marine life such as sea stars, brittle stars, and sea cucumbers. They form the class Echinoidea with 13 orders and boast about 950 species. Displaying five-fold symmetry, sea urchins are equipped with hundreds of tiny adhesive tube feet, aiding movement.
Sea urchin | Description, Anatomy, & Facts | Britannica
WEBOct 5, 2024 · sea urchin, any of about 950 living species of spiny marine invertebrate animals (class Echinoidea, phylum Echinodermata) with a globular body and a radial arrangement of organs, shown by five bands of pores running from mouth to anus over the test (internal skeleton).
Echinus | architecture | Britannica
WEB…or more narrow grooves; the echinus, a circular block that bulges outward at its uppermost portion in order to better support the abacus; and the abacus itself, a square block that directly supports the entablature above and transmits its weight to …
Sea Urchin - Animal Corner
WEBThere are around 950 species of sea urchin, and they inhabit the seabed of every ocean and every depth zone, from the tide line to 15,000 feet deep. The name urchin is an old word for hedgehog, which sea urchins resemble; …
Identify sea urchins | The Wildlife Trusts
WEBSea urchins are echinoderms, related to starfish, sea cucumbers and brittle stars. Their scientific name "Echinus" comes from the Greek word for hedgehog - it's easy to see why with all those spines! But what species live in UK waters and how do you tell them apart?
European Edible Sea Urchin (Echinus esculentus) - iNaturalist
WEBEchinus esculentus, the European edible sea urchin or common sea urchin, is a species of marine invertebrate in the Echinidae family. It is found in coastal areas of western Europe down to a depth of 1,200 m (3,900 ft). It is considered 'Near threatened' in the IUCN Red List of Threatened Species.