Top Results for Regular

Arbacia lixula, commonly known as the black sea urchin, is a species of regular sea urchin in the family Arbaciidae, first described by Linnaeus in 1758. It is found throughout the Mediterranean Sea and on the Atlantic coasts of southern Europe and northern Africa, typically on rocky substrates in s...

Anthocidaris crassispina is a species of sea urchin in the family Echinometridae, commonly found in the coastal waters of the western Pacific Ocean. Native to regions including China and southern Japan, it is characterized by its dark purple or blackish spines. The species is extensively harvested a...

*Astropyga magnifica*, commonly known as the magnificent fire urchin, is a species of marine sea urchin belonging to the family Diadematidae. Native to the Indo-Pacific region, it typically inhabits shallow coral reefs and rocky seabeds. The urchin is distinguished by its striking, brightly colored...

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Tripneustes depressus is a species of sea urchin belonging to the family Toxopneustidae, found in the eastern Pacific Ocean. Like other members of its genus, commonly called collector urchins, it has globular tests covered with spines and is associated with tropical marine environments. The species...

Heterocentrotus trigonarius is a species of Indo-Pacific sea urchin belonging to the family Echinometridae, commonly known as the slate pencil urchin. It is recognized for its thick, distinctively triangular or wedge-shaped protective spines, which are noticeably broader and flatter than the needle-...

Holopneustes inflatus is a species of regular sea urchin belonging to the family Temnopleuridae, an organism originally described by the Swiss-American zoologist Louis Agassiz in 1846. As an echinoderm, it features a spherical, radially symmetrical shell covered in movable spines used for defense an...

Centrostephanus longispinus is a species of sea urchin belonging to the family Diadematidae, commonly found in the Mediterranean Sea. It is recognized by its exceptionally long, hollow, and venom-tipped spines that offer protection from predators. The echinoid typically inhabits rocky substrates and...

Echinus melo, commonly known as the melon urchin, is a species of regular sea urchin found in the Mediterranean Sea and the eastern Atlantic Ocean. It was described by Carl Linnaeus in 1758 and named for its large, globular test, which resembles a melon in both shape and proportions. The species bel...

Coelopleurus exquisitus is a species of deep-water sea urchin belonging to the family Arbaciidae. It is primarily distinguished by its vibrantly colored, banded primary spines and a beautifully sculpted test featuring prominent, bare interambulacral zones. This marine invertebrate typically resides...

Psammechinus miliaris, commonly known as the shore or green sea urchin, is a species of regular sea urchin belonging to the family Parechinidae. Native to the North Sea and the eastern Atlantic Ocean, this marine invertebrate typically inhabits shallow coastal waters and rocky shores. It was origina...

Lytechinus pictus, commonly called the painted sea urchin, is a regular sea urchin found along the Pacific coast of North America. Like other regular urchins, it has a roughly spherical test covered with movable spines and feeds using a five-part jaw apparatus. Its accessible gametes and externally...

Holopneustes purpurascens is a regular sea urchin in the family Temnopleuridae, described by Alexander Agassiz in 1872. It occurs in southern Australian marine habitats and is associated with kelp and other large seaweeds, among which it feeds and finds shelter. The species is of interest to marine...

Toxopneustes roseus is a sea urchin in the family Toxopneustidae found in the eastern Pacific, including waters along the western coast of the Americas. It has a rounded test, relatively short spines, and numerous flower-like pedicellariae, small grasping appendages that can deliver venom. Like rela...

Strongylocentrotus polyacanthus is a regular sea urchin in the family Strongylocentrotidae, commonly known as the many-spined sea urchin. It inhabits cold waters of the North Pacific, including areas around the Aleutian Islands and Alaska, and occurs on rocky seabeds where it grazes on algae and oth...

Amblypneustes grandis is a notable species of sea urchin classified in the Temnopleuridae family, first officially described by Alexander Agassiz in 1863.

Gracilechinus acutus is a species of sea urchin in the family Echinidae, placed in the genus Gracilechinus established by Kroh and Smith in their 2010 revision of echinoid taxonomy.

Echinometra lucunter, commonly known as the rock-boring urchin, is a sea urchin species found in shallow waters throughout the Caribbean and western Atlantic Ocean. First described by Carl Linnaeus in 1758, this echinoid uses its spines and teeth to excavate depressions in coral and limestone substr...

Asthenosoma dilatatum is a species of deep-water sea urchin first described by Alexander Agassiz in 1879. Belonging to the family Echinothuriidae, it is commonly referred to as a fire urchin due to its venomous pedicellariae, which can deliver a painful sting. The species has a distinctive, flattene...

Astropyga nuptialis is a distinct species of Indo-Pacific sea urchin in the Diadematidae family, recognized for its long, venom-tipped defensive spines.

Echinometra mathaei is a species of sea urchin widely distributed across the Indo-Pacific region, where it primarily inhabits shallow coral reefs. Originally described by Henri Marie Ducrotay de Blainville in 1825, this marine invertebrate is specifically known for its ability to bioerode coral. It...

Salmacis bicolor is a species of regular sea urchin belonging to the family Temnopleuridae. The marine invertebrate was originally described by the Swiss-American biologist Louis Agassiz in 1846 based on collected specimens. These echinoderms inhabit the shallow, warm waters of the Indo-Pacific regi...

Arbacia punctulata, commonly known as the Atlantic purple sea urchin, is a marine echinoderm native to the western Atlantic Ocean and the Gulf of Mexico. Described by Jean-Baptiste Lamarck in 1816, the species features a spherical, purple test covered in sharp, defensive spines used to navigate the...

Lytechinus semituberculatus is a species of regular sea urchin belonging to the family Toxopneustidae. As its scientific name suggests, it is distinguished by the partial tuberculation present on its calcareous test, or shell. This marine echinoderm is found in the shallow coastal waters of the east...

Heliocidaris crassispina is a species of sea urchin native to the shallow coastal waters of the northwestern Pacific Ocean, particularly around Japan and China. It belongs to the family Echinometridae and features the characteristic spherical, spiny test common to regular sea urchins. The species is...

Centrostephanus coronatus, commonly known as the crowned sea urchin, is a species of long-spined sea urchin found in the eastern Pacific Ocean from California to Peru. First described by Addison Emery Verrill in 1867, this regular echinoid is characterized by its distinctive, sharply banded spines t...

Lytechinus anamesus is a scientific name historically applied to a species of white sea urchin found in the Pacific Ocean. Subsequent taxonomic revisions and molecular studies have treated it as a junior synonym of Lytechinus pictus. This sea urchin inhabits shallow, sandy coastal environments along...

Toxopneustes elegans is a species of venomous sea urchin belonging to the family Toxopneustidae. It was originally described by the German zoologist Ludwig Döderlein in 1885. This species is native to the marine waters off the coast of Japan, where it inhabits the benthic zone. Like other sea urchin...

Glyptocidaris crenularis is a species of regular sea urchin in the family Glyptocidaridae, found in the northwest Pacific Ocean including waters off Japan. It is the sole extant member of its genus, making it a taxonomically significant surviving representative of an otherwise ancient lineage. The s...

Amblypneustes ovum is a species of regular sea urchin belonging to the family Temnopleuridae. Originally described by zoologists Louis Agassiz and Edouard Desor in 1846, this marine invertebrate is native to the shallow coastal waters of Australia. As a member of the Temnopleuridae family, it featur...