A small marine fish of the genus Hippocampus, characteristically swimming in an upright position and having a prehensile tail, a horselike head, and a body covered with bony plates.

• 海象：一种海马属的小海鱼，以其垂直的游泳姿势最具特色，长有强有力的尾巴，头象马，身体覆满骨甲