One says that fish is not a fish, that shrimp is not like shrimp, with a crab-like claw, but not a crab thing, this strange-looking seafood, the locals call it a sea monster, in fact, its scientific name is hermit crab, because it is indeed inhabited in an empty conch shell. The locals also gave it a very interesting name——— "white house", carefully pondered, this name is too image, empty snail shell, it drilled in, white pick a ready-made house to live, not "white house" what is it?
Hermit crab, also known as "white house" and "dry house", mainly uses the shell of the snail as the host, and the maximum diameter of the largest snail can reach more than 15 cm. Its shape is between shrimp and crab, mostly inhabited by snail shells. The body is long, divided into head, thorax and abdomen. The cephalothorax has cephalothorax, but does not cover the last thoracic segment. The anterior part of the cephalothorax is narrower, more calcified, the posterior part is wider, or completely membranous, with a pronounced cervical groove. The abdomen is long, curly or straight, a few species wide and short, and mostly asymmetrical. Hermit crabs are mostly found on the coast of the Yellow Sea and the southern seas, and are easy to find in the rock crevices of the beach and the sea, and sometimes this omnivore known as the "scavenger" can also be seen in other places such as bamboo knots, coconut shells, corals, sponges, etc. Hermit crabs are not listed in the list of wild animals under national key protection and belong to general protected animals.
The general family of crabs includes hermit crabs, quasi-hermit crabs, stone crabs, etc., common such as large hermit crabs (square wrist hermit crabs), with a large body shape, large claws longer than 10 cm, many spine-like protrusions on the surface and edges of the two claws, and spines on the steps. The general family of terrestrial hermit crabs includes the live-amounted hermit crab family, the terrestrial hermit crab family, the chelated hermit crab family, etc., and the common ones such as the Ai's living-hermit crab and the lower-toothed fine-toothed hermit crab. Nearly 1,000 species are known worldwide and about 100 in China.
Because the hermit crab is very heterogeneous, it is an omnivorous animal, they are known as the scavengers of the seashore, from algae, food residues to parasites, for family fish lovers, putting one or two hermit crabs in the aquarium will play the role of cleaner.
The lifespan of hermit crabs is generally 2 to 5 years, but in a good breeding environment, it can often live to 20 to 30 years, and the longest recorded life is 70 years.