2. Lobster (scientific name: Palinuridae) is the general name of the species under the family Lobster of Lepidoptera. Also known as prawns, leading shrimps, shrimps, sea shrimps, etc. Its head and chest are thick, its shell is hard and colorful, its abdomen is short, its body length is generally between 20 and 40 cm, and its weight is about 0.5 kg. Some of it has no claws, and its abdominal limbs can be transformed into claws in the next day. The heaviest can reach more than 5 kilograms, and it is called lobster tiger. The body is thick and cylindrical, the back and abdomen are slightly flat, the head and breastplate are developed, thick and spiny, there are a pair of powerful supraocular spines in the center of the front edge, and there are closed gill chambers. Mainly distributed in tropical waters, it is a valuable seafood.