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本数据集包含166个物种的蝌蚪体型形态数据，收录了用于刻画蝌蚪身体形态的解剖标记点（landmarks）与半标记点（semilandmarks），具体如下： 1. 眼球中心 2. 外鼻孔中心 3. 上唇与头部/躯干的接触位点 4. 下唇与头部/躯干的接触位点 5. 腹侧头部/躯干与尾部的交点，位于泄殖腔前方 6. 尾部肌肉腹侧边缘与头部/躯干的交点 7. 尾部肌肉背侧边缘与头部/躯干的交点 8. 尾尖 9. 背鳍上最接近标记点7的位点（表面表征头部/躯干与尾部区域的交点） 10至17：侧视视角下，用于标记头部/躯干背侧轮廓的等间距半标记点 18至27：侧视视角下，用于标记尾鳍背侧轮廓的等间距半标记点 28至37：侧视视角下，用于标记尾鳍腹侧轮廓的等间距半标记点 38至45：侧视视角下，用于标记头部/躯干腹侧轮廓的等间距半标记点 46至55：用于标记脊索（notochord）轮廓的等间距半标记点