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Phylum Echinodermata 棘皮動物門


Class Echinoidea 海膽綱


Family Diadematidae 冠海膽科


Scientific name Diadema savignyi


Chinese name 沙氏冠海膽


Author Michelin, 1845


Size 26x12.8mm


Description Sea Urchin, test diameter: 26 mm , taken in Balicasag Island , Cebu , Philippines .




 


 


Diadema savignyi, 沙氏冠海膽, Aboral view(反口面).





 


 


Diadema savignyi, 沙氏冠海膽, Oral view(口面).



 


 


Diadema savignyi, 沙氏冠海膽, Lateral view of interambulacra area.





 


 


Diadema savignyi, 沙氏冠海膽, Lateral view of Ambulacra area.




 


 


Diadema savignyi, 沙氏冠海膽, Apical system (頂系)



 


 


Diadema savignyi, 沙氏冠海膽, Peristome (口圍)



 


 


Diadema savignyi, 沙氏冠海膽, Primary spines

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