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Strongylocentrotus droebachiensis is commonly known as the green sea urchin because of its characteristic green color, ...
Asthenosoma varium is a sea urchin (an echinoderm, a member of the phylum that also includes star fish).Growing up to 25 cm (10 in) in diameter, it lives on sand and rubble sea bottoms in the Indo-Pacific, from the Red Sea to Australia and Southern Japan.
The Echinothuriidae are a family of sea urchins in the order Echinothurioida.Due to their soft skeletons, most are called "leather urchins", but species in the genus Asthenosoma are also known as "fire urchins" due to their bright colors and painful, venomous sting.
Commenting on this suggestion, sea urchin expert F. Julian Fell pointed out that Dermechinus horridus lived in zooplankton-rich waters and that its upright posture resembled that of a filter-feeding sea cucumber; the long spines formed combs and the short spines would be suitable for transporting small particles to the mouth at the base of the ...
Several species of sea urchin share the name green sea urchin: Lytechinus variegatus , also known as the variegated sea urchin Psammechinus microtuberculatus , occurs in the Atlantic Ocean, Adriatic Sea, Aegean Sea and Mediterranean
Echinus 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] It is considered "Near threatened" in the IUCN Red List of Threatened Species. [1] Test of Echinus esculentus
Astropyga radiata is a large urchin with a test diameter of up to 20 cm (8 in), flattened or slightly concave on the aboral (upper) side. The spines are up to 4 cm (1.6 in) long and are grouped in five vertical clusters in between which are V-shaped areas with no spines corresponding to the interambulacral plates.
Coelopleurus exquisitus, the exquisite urchin, is a sea urchin species found off the coast of the island of New Caledonia in the Pacific Ocean. It is an epifaunal deepwater species living at depths between 240 and 520 m (790 and 1,710 ft) and was only identified and named in 2006.