海螂目，海笋科，全海笋属。我国北方沿海俗称象鼻子蛤，港澳及东南沿海俗称象拔蚌，是一种珍贵的海产品。分布于辽宁、河北、山东、浙江泗礁、普陀、南韩.
学名：Barnea(Anchomasa)davidi
英文名：Dagu whole sea asparagus
This species belongs to the family of Pholadidae,order of Myoida.It is commonly known as the elephant nose clam in the northern coast of China, which is commonly known as the ivory mussel in Hong Kong and Macao and the southeast coast, which is a precious sea product.Distributed in Liaoning, Hebei, Shandong, Zhejiang Sijiao, Putuo, South Korea.