Green sea urchin
A species of Lytechinus Scientific name : Lytechinus variegatus Genus : Lytechinus
Green sea urchin, A species of Lytechinus
Botanical name: Lytechinus variegatus
Genus: Lytechinus
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Description People often ask
Photo By James St. John , used under CC-BY-2.0 /Cropped and compressed from original 
Description
The green sea urchin has a globular test (shell) densely covered in spines and can reach a diameter of around 11 centimetres (4.3 in). The test may be purple, green or dull red, blotched with white. The majority of the spines are short but there are a few longer primary spines. The spines vary in colour, sometimes being one colour at the base and a different colour at the tip. Green test with green spines or green test with white spines are the most common combinations found in the Caribbean. In between the spines are pedicellaria, pincer like structures. These are white which distinguishes the green sea urchin from the rather similar Lytechinus williamsi which has purple pedicellaria.
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People often ask
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Scientific Classification
Phylum
Echinoderms Class
Sea urchins Order
Camarodonta Family
Toxopneustidae Genus
Lytechinus Species
Green sea urchin 
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