Phylum Echinodermata 棘皮動物門


Class Echinoidea 海膽綱


Family Laganidae 餅乾海膽科


Scientific name Laganum decagonale


Chinese name 十角餅乾海膽


Author Blainville, 1827


Size 41 mm


Description Sea urchin test diameter - 41 mm , with spine, taken with tangle net at depth of 100-200 meters in Balicasag Island , Bohol , Philippines .




 


 


Laganum decagonale, 十角餅乾海膽, Aboral view(反口面).






 


 


Laganum decagonale, 十角餅乾海膽, Petaloid area (瓣狀區域)



 


 


Laganum decagonale, 十角餅乾海膽, Apical system (頂系)



 


 


Laganum decagonale, 十角餅乾海膽, Oral view(口面).






 


 


Laganum decagonale, 十角餅乾海膽, Peristome (口圍)



 


 


Laganum decagonale, 十角餅乾海膽, Periproct (肛圍)



 


 


Laganum decagonale, 十角餅乾海膽, Lt. lateral view(左側面).




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