Arachnoides placenta

Arachnoides placenta is a species of sea urchin of the family Clypeasteridae. Their armour is covered with spines. It is placed in the genus Arachnoides and lives in the sea. Arachnoides placenta was first scientifically described in 1758 by Carolus Linnaeus.

单词	Arachnoides placenta
释义	Arachnoides placenta 英语百科 Arachnoides placenta Arachnoides placenta is a species of sea urchin of the family Clypeasteridae. Their armour is covered with spines. It is placed in the genus Arachnoides and lives in the sea. Arachnoides placenta was first scientifically described in 1758 by Carolus Linnaeus.
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