Class: Echinoidea 海膽綱
Family: Corystusidae
Scientific name: Corystus relictus
Chinese name:
Author: De Meijere, 1902
Size: 68mm
Description: Sea urchin - test diameter - 68 mm, taken by tangle net in Oslob Cebu, Philippines.
Corystus relictus , Aboral view(反口面).




Corystus relictus , Apical system (頂系)

Corystus relictus , Oral view(口面).




Corystus relictus , Peristome (口圍) , Floscelle (口花)

Corystus relictus , Rt. lateral view(右側面).



Corystus relictus , Anterior view(前端).



Corystus relictus , Posterior view(後端).




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