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Black Longspine Urchin

Thunder Goose

This was a hitchhiker that arrived only 1/4 inch long, in mid-June. I think she might get big.

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Photo Information for Black Longspine Urchin

Taken with LG Electronics VS986

  • 4.4 mm
  • f f/1.8
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Christopher Marks


Wow how cool to find as a hitchhiker! Do you have any earlier photos when it was tiny?

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Thunder Goose


Yep. She's not the only urchin I got - I got AT LEAST 3, and I thought I saw a 4th one. She's the one who's grown the most. Here she is with a micro brittle star for scale. Photo date is June 12, 2017!


I also have an almost white short spine, a brown long spine and I thought I had a second black one but I haven't seen it for a while. It was smaller than this one.



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