Family Clypeasteridae Order Sand dollar | Class Echinoidea Rank Species | |
Similar Sand dollar, Colochirus quadrangularis, Clypeasteridae, Laganum, Prionocidaris | ||
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.
References
Arachnoides placenta Wikipedia(Text) CC BY-SA