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animal
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the seven principal stars which form the Great Dipper in the constellation Ursa Major saury
又名弓背鱼、七星飞刀鱼、东洋刀鱼、花刀鱼。分布于印度、缅甸、泰国。
特征:体长80~90厘米。前半身宽厚,尾部尖小,背微弓形隆起。体灰黑色,体侧由头到尾部有3~10个镶白边的黑色斑点,数目不定,因鱼而有所增减。幼鱼期体表并无黑色斑点,只有10~15条淡淡的斜纹,成鱼后才变成黑色斑点。
饲养特点:性情温和,夜行性,可与个体相仿的品种鱼混养。饲养水温22~28℃,水质弱酸性。喜食活小鱼、小虾等。
繁殖特点:人工繁殖较困难。