Phylum: Echinodermata 棘皮動物門
Class: Echinoidea 海膽綱
Family: Aspidodiadematidae
Scientific name: Plesiodiadema indicum
Chinese name:
Author: Döderlein, 1900
Size: 26x23.6mm
Description: Sea Urchin, diameter: 26x23.6mm, taken in Nan-Fan-au, Yilan, NE. Taiwan.
Plesiodiadema indicum, Aboral view(反口面).
Plesiodiadema indicum, Lateral view(側面), ambulacral area(步帶區).
Plesiodiadema indicum, Lateral view, interambulacral area(間步帶區).
Plesiodiadema indicum, Oral view(口面).
Plesiodiadema indicum, Peristome (口圍)
Plesiodiadema indicum, Primary spine(一級刺).