单环刺螠虫(Urechis uniconctus)隶属于螠虫动物门(Echiuroidea),螠纲(Echiurida),无管螠目(Xenopneusta),刺螠科(Urechidae),刺螠属(Urechis),是近年来逐渐被人们关注并了解的经济类海生无脊椎动物。 2. Urechis uniconctus is an unique specie of Xenopneusta along the seaboard in China, which is clas...