Catalogue of Gastroenterology: Spinibarbus annulata is a long cylindrical annelid with no burr and light yellow color. Sea sausage not only looks like naked sea cucumber, but also has no less nutritional value than sea cucumber.

The individual is bulky, about 100-300mm long and 25-27mm wide, and the body surface is covered with granular protrusions of different sizes, which are conical; Abdominal bristles 1 pair, thick; There is a circle of 9- 13 brown tail anal hair around the anus. Distributed in Russian, Japanese, Korean and Bohai Bay, China. It is a common benthic species in the intertidal zone and shallow water area along the northern coast of China, and does not suck blood.

Physiological habits of sea sausage

Spinibarbus unicinctus is a tubular insect that lives in sediments or coral reefs. It has strong seasonality and can only be caught in spring when the wind and waves are strong. The cave of Spinibarbus unicinctus is U-shaped, and the cave is chimney-shaped.

Spinibarbus unicinctus is large in size and has a long kiss at the front of its body for foraging. Extremely elastic, can be stretched to more than one meter. By virtue of its viscosity, it adheres to small animals or organic particles at the bottom. Because the snout is foraging outside, it is easy to be pecked by seabirds, and it is very fertile. A ring-shaped stingray living on the mudflat has a good ability to dive into the sand, and its body can dive to more than 40 cm.