Tripneustes gratilla M

Description

Tripneustes gratilla, commonly known as the collector urchin or Halloween urchin, is a species of sea urchin. It's a herbivorous echinoderm found in various tropical habitats like coral reefs, seagrass meadows, and algal forests. These urchins have a dark, often bluish-purple test (shell) with white or orange spines, sometimes completely white or orange-tipped. 

Key Features and Behaviors:

  • Color: While typically dark, their spines can vary from white to orange, with some having orange tips or being entirely white. 

  • Test: The test is usually dark, especially in interradial regions, which are the areas between the spines. 

  • Spines: They possess long, obvious spines, and their spines are often inclined towards adjacent ambulacra, giving the appearance of a pentaradiate cross. 

  • Podia: These urchins have long and obvious tube feet (podia) that help them move and collect debris. 

  • Diet: Tripneustes gratilla is herbivorous, feeding primarily on algae. 

  • Habitat: They are found in a variety of tropical habitats, including coral reefs, seagrass meadows, and algal forests. 

  • Covering Behavior: They are known for their "covering behavior," using tube feet to cover their aboral (top) surface with debris like rocks and other materials. 

  • Predators: Common predators include pufferfishes, octopuses, and humans. 

  • Venom: They possess venom but it doesn't typically cause severe stings. 

  • Edibility: While they are not the most commonly consumed sea urchin, some cultures do eat their gonads. 

  • Other names: They are also known as cake, Parson's hat, Halloween, Hawaiian, priest-hut, pincushion, and hairy sea urchins

Product form

Tripneustes gratilla, commonly known as the collector urchin or Halloween urchin, is a species of sea urchin. It's a herbivorous... Read more

4 in stock

90.00 лв Incl. VAT

      Description

      Tripneustes gratilla, commonly known as the collector urchin or Halloween urchin, is a species of sea urchin. It's a herbivorous echinoderm found in various tropical habitats like coral reefs, seagrass meadows, and algal forests. These urchins have a dark, often bluish-purple test (shell) with white or orange spines, sometimes completely white or orange-tipped. 

      Key Features and Behaviors:

      • Color: While typically dark, their spines can vary from white to orange, with some having orange tips or being entirely white. 

      • Test: The test is usually dark, especially in interradial regions, which are the areas between the spines. 

      • Spines: They possess long, obvious spines, and their spines are often inclined towards adjacent ambulacra, giving the appearance of a pentaradiate cross. 

      • Podia: These urchins have long and obvious tube feet (podia) that help them move and collect debris. 

      • Diet: Tripneustes gratilla is herbivorous, feeding primarily on algae. 

      • Habitat: They are found in a variety of tropical habitats, including coral reefs, seagrass meadows, and algal forests. 

      • Covering Behavior: They are known for their "covering behavior," using tube feet to cover their aboral (top) surface with debris like rocks and other materials. 

      • Predators: Common predators include pufferfishes, octopuses, and humans. 

      • Venom: They possess venom but it doesn't typically cause severe stings. 

      • Edibility: While they are not the most commonly consumed sea urchin, some cultures do eat their gonads. 

      • Other names: They are also known as cake, Parson's hat, Halloween, Hawaiian, priest-hut, pincushion, and hairy sea urchins

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