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names in breadcrumbs
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Creatures
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Animal
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Echinoderms
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Sea Urchins
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Cidaridae
Creatures
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Cellular Organisms
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Eukaryotes
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Opisthokonts
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Animal
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Deuterostomes
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Echinoderms
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Echinozoa
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Sea Urchins
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Cidaroidea
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Cidaroida
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Cidaroidea
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Cidaridae
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Stylocidarinae Mortensen 1903
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Echinoderms of Panama
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Stylocidaris affinis
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Alfiero Brisotto
Flickr Group
Diano Marina, Liguria, Italy
Thorny sea urchin (Prionocidaris sp.)
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Ria Tan
Flickr Group
Singapore, South East, Singapore
n718_w1150
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Biodiversity Heritage Library
Flickr Group
Echinoderms from AustraliaCambridge, U.S.A. :Printed for the Museum,1938.
biodiversitylibrary.org/page/4374777
Beautiful pencil urchin - Prionocidaris callista
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John Turnbull
Flickr Group
The beautiful pencil urchin looks quite different from the pencil slate urchin, and is less common. The spines are longer and have serrations.
Plococidaris verticillata (Lamarck, 1816)
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Patrick Randall
Flickr Group
Onna, Okinawa, Japan
Upperside of Thorny sea urchin (Prionocidaris sp.)
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Ria Tan
Flickr Group
Kampong Salabin, South East, Singapore
Thorny sea urchin (Prionocidaris sp.)
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Ria Tan
Flickr Group
Singapore, South East, Singapore
Underside of Thorny sea urchin (Prionocidaris sp.)
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Ria Tan
Flickr Group
Kampong Salabin, South East, Singapore
Thorny sea urchin (Prionocidaris sp.)
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Ria Tan
Flickr Group
Kampong Salabin, South East, Singapore
Thorny sea urchins (Prionocidaris sp.)
cc-by-nc-sa
Ria Tan
Flickr Group
Pulau Tekong, South East, Singapore
Thorny sea urchin (Prionocidaris sp.)
cc-by-nc-sa
Ria Tan
Flickr Group
Pulau Tekong, South East, Singapore
Thorny sea urchin (Prionocidaris sp.)
cc-by-nc-sa
Ria Tan
Flickr Group
Singapore, South East, Singapore
Thorny sea urchin (Prionocidaris sp.)
cc-by-nc-sa
Ria Tan
Flickr Group
Kampong Salabin, South East, Singapore
Thorny sea urchin (Prionocidaris sp.)
cc-by-sa-2.0
Ria Tan
Flickr Group
Pulau Tekong, South East, Singapore