Key Identification Features
- The most noticeable feature of flower urchins is their pedicellariae: stalked, grasping appendages.
- Flower urchins have four types of pedicellariae, distinguished by shape and function, but only two are abundant.
- The valves are connected to each other by a distinct circular membrane around 4 to 5 mm (0.
- Toxopneustes elegans, which is only found around Japan, can be distinguished by a distinctive dark stripe just below the tips of its spines.
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