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: 68x63x14mm
Description: Sea Urchin, diameter: 68x63x14mm, taken in Olango Island, Cebu, Philippines.
Laganum decagonale, Aboral view(反口面).
Laganum decagonale, Petaloid area (瓣狀區域)
Laganum decagonale, Apical system (頂系)
Laganum decagonale, Oral view(口面).
Laganum decagonale, Peristome (口圍)
Laganum decagonale, Periproct (肛圍)
Laganum decagonale, Lt. lateral aboral view(左側反口面).
Laganum decagonale, Lt. lateral view(左側面).
Laganum decagonale, Lt. lateral oral view(左側口面).
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