2011年6月22日 星期三

Plesiodiadema indicum 26x23.6mm, cleaned

Phylum Echinodermata 棘皮動物門


Class Echinoidea 海膽綱


Family Aspidodiadematidae


Scientific name Plesiodiadema indicum


Chinese name


Author Döderlein, 1900


Size 26x23.6mm


Description Sea Urchin, diameter: 26x23.6mm, taken in Nan-Fan-au, Yilan, NE. Taiwan.


 


Plesiodiadema indicum, Aboral view(反口面).


 


 


Plesiodiadema indicum, Apical system (頂系)


 



Plesiodiadema indicum, Oral view(口面).



 


 


Plesiodiadema indicum, Peristome (口圍)


 


 


Plesiodiadema indicum, Lateral view, interambulacral area(間步帶區).






 


 


Plesiodiadema indicum, Lateral view, ambulacral area(步帶區).







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