鲎（音候），它的别称颇多，也很风趣。学名东方鲎、中国鲎，俗称马蹄蟹、三刺鲎、两公婆、丑八怪、鲎蛛等。属肢口纲剑尾目鲎科动物。体分头胸、腹及尾三部分。胸甲呈马蹄形，背面有三脊而多刺，青黑色，头胸部下面具附肢六对；四部在第二至第六附肢之间，附肢的基部有倒刺，? 鲎 (sound), its nickname quite a lot, is also very funny. Scientific name Oriental 鲎, China 鲎, commonly known as horseshoe crab, three thorn 鲎, two-in-law, ugly, 鲎 spider and so on. Is a stomatopoda squirrel Ankylosauridae. Body sub-head chest, abdomen and tail three parts. The breastplate is horseshoe-shaped, with three spines and prickles on the back, blue-black, with six appendages under the head and chest; four with barbs at the base of the appendages between the second and sixth appendages;