Many species of the Ctenizidae build burrows with trapdoors to ambush prey.
多くのトラップドアグモ科の種は獲物を待ち伏せるためにトラップドア付きの巣穴を作る。
A zoological family of trapdoor spiders whose species build concealed hinged entrances to their burrows and capture passing insects or small animals.
