是腹足纲、蟹守螺科的动物。见于我国西沙群岛、海南岛，日本和菲律宾也有分布。生活于低潮区沙滩上。
学名：Cerithium erythraeonense Lamarck
英文名：Nodules Crab keep conch
This species belongs to the family of Cerithiidae,class of Gastropoda.Distributed in Chinese Xisha Islands, Hainan Island, Japan and the Philippines . It Lives in the low tide area on the beach.