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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