Echinoidea — Free Biology Illustration | GPAI | GPAI

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Echinoidea — Free Biology Illustration | GPAI | GPAI

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Echinoidea

Echinoidea

Biology

Echinoidea

A sea urchin with a nearly spherical body covered in dense radiating spines of varying length, a rigid central test barely visible beneath the spines, and a dark purple, black, or reddish-brown coloration.

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