Phylum: Echinodermata 棘皮動物門
Class: Echinoidea 海膽綱
Family: Cidaridae 頭帕海膽科
Scientific name: Prionocidaris pistillaris
Chinese name:
Author: Lamarck, 1816
Size: 10x5mm
Description: Sea Urchin, test diameter: 10x5mm, taken in Olango Island, Cebu, Philippines.
Prionocidaris pistillaris, Aboral view(反口面).
Prionocidaris pistillaris, Apical system (頂系)
Prionocidaris pistillaris, Oral view(口面).
Prionocidaris pistillaris, Peristome (口圍)
Prionocidaris pistillaris, Lateral aboral view(側反口面).
Prionocidaris pistillaris, 叉棘 (pedicellariae)
Prionocidaris pistillaris, Primary spine(一級刺).
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