2011年6月22日 星期三

Plesiodiadema indicum 26x23.6mm, denuded

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, Lt. lateral oral view(左側口面).



 


 


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





 


 


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






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