吸热能力
鼠鲨属可以维持高于周边海水温度的体温,比起其他的软骨鱼更高,最高的温差可达15.6℃。[3][4]在鱼类中,可以控制体温的只有较大及敏捷的物种,如蓝鳍金枪鱼及剑鱼等。
物种
鼠鲨属包含以下物种:
- 鼠鲨 Lamna nasus (Bonnaterre, 1788):分布于大西洋及南太平洋的海岸区域及远洋。
- 太平洋鼠鲨 Lamna ditropis C. L. Hubbs & Follett, 1947:分布于北太平洋海岸。
- †Lamna attenuata (Davis, 1888)
- †Lamna carinata (Davis, 1888)
- †Lamna hectori (Davis, 1888)
- †Lamna marginalis (Davis, 1888)
- †Lamna obliqua (Agassiz, 1843)
- †Lamna quinquelateralis (Cragin, 1894)
- †Lamna trigeri (Coquand, 1860)
- †Lamna trigonata (Agassiz, 1843)
参考
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