Supplementary data file 2

Tadpole body shape data for 166 species. Landmarks and semilandmarks for characterizing the body shape of tadpoles. 1 Centre of the eye 2 Centre of the external nares 3 Point where the upper labium contacts the head/body 4 Point where the lower labium contacts the head/body 5 Intersection of the head/body and tail on the ventral side, anterior to the vent 6 Intersection of the ventral edge if the tail muscle and the head/body 7 Intersection of the dorsal edge if the tail muscle and the head/body 8 Tip of the tail 9 Point on the dorsal fin closest to landmark 7 (superficially denotes the intersection of the head/body and tail regions) 10 to 17 Equally-spaced semilandmarks marking the curve of the dorsal aspect of the head/body when viewed laterally 18 to 27 Equally-spaced semilandmarks marking the curve of the dorsal aspect of the tail fin when viewed laterally 28 to 37 Equally-spaced semilandmarks marking the curve of the ventral aspect of the tail fin when viewed laterally 38-45 Equally-spaced semilandmarks marking the curve of the ventral aspect of the head/body when viewed laterally 46 to 55 Equally-spaced semilandmarks marking the curve of the notochord涵盖166个物种的蝌蚪躯体形态数据集，包含用于表征蝌蚪体型的标志点（landmark）与半标志点（semilandmark）： 1. 眼球中心 2. 外鼻孔中心 3. 上唇与头部/躯体的连接点 4. 下唇与头部/躯体的连接点 5. 腹面头部/躯体与尾部的交点，位于泄殖腔前方 6. 尾部肌肉腹缘与头部/躯体的交点 7. 尾部肌肉背缘与头部/躯体的交点 8. 尾尖 9. 背鳍上最接近标志点7的点位（表面表征头部/躯体与尾部区域的交界） 10至17：等距分布的半标志点，用于标记侧视视角下头部/躯体的背侧轮廓曲线 18至27：等距分布的半标志点，用于标记侧视视角下尾鳍背侧轮廓曲线 28至37：等距分布的半标志点，用于标记侧视视角下尾鳍腹侧轮廓曲线 38至45：等距分布的半标志点，用于标记侧视视角下头部/躯体的腹侧轮廓曲线 46至55：等距分布的半标志点，用于标记脊索（notochord）的轮廓曲线