Crab-like crab-like Oncomelania is called Oncomelania. The shell is tower-shaped, about 2 cm long, and its shell is slightly thin and solid, usually with eight spiral layers, with a yellow-white shell surface and a white shell bottom, an oval shell mouth and a furrow-like inner surface. Most of them live in the middle and upper tidal zone of intertidal zone, crawl on mudflats or mudflats in intertidal zone after low tide, or hide in the shade beside rocks, with an average habitat density of 4/m2, which is distributed along the coast of the Yellow Sea for rivers to enter. Many fishermen go fishing at low tide.
The blunt crab guarding snails has an awl-like tip, so people call it a sea cone. Qingdao people call it sea melon seeds, which are usually boiled in water. Take it out when guests come, just like people in the city eat melon seeds. Meat is delicious, and they are generally very picky about food with needles. Don't break the tail of the melon seeds until you can eat them. Suck them with your mouth. Snail meat is only a little size, but the fresh and tender taste is probably irreplaceable.