Purple Short Spine Pincushion Urchin: Saltwater Aquarium Invertebrates
Purple sea urchin (Sphaerechinus granularis), on reef. Sometimes the short spines are purple, Stock Photo, Picture And Rights Managed Image. Pic. UIG-961-24-KGH00230 | agefotostock
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Purple short spine pincushion urchin (Pseudoboletia sp.). Look how cool these little guys are! These reef safe grazers are currently a little smaller... | By Salty Revolution | Facebook
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