Beautiful pencil urchin - Prionocidaris callista
![Image of Prionocidaris A. Agassiz 1863](https://content.eol.org/data/media/d7/1a/7c/542.6a3b1ca58b136f477b4fa07798eb8063.580x360.jpg)
Description:
The beautiful pencil urchin looks quite different from the pencil slate urchin, and is less common. The spines are longer and have serrations.
Included On The Following Pages:
- Life (creatures)
- Cellular (cellular organisms)
- Eukaryota (eukaryotes)
- Opisthokonta (opisthokonts)
- Metazoa (Animal)
- Bilateria
- Deuterostomia (deuterostomes)
- Echinodermata (echinoderms)
- Echinozoa
- Echinoidea (sea urchins)
- Cidaroidea
- Cidaroida
- Cidaroidea
- Cidaridae
- Stylocidarinae
- Prionocidaris
- Prionocidaris callista
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Source Information
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- John Turnbull
- photographer
- John Turnbull
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