Table 2 in A redescription of Astyanax gymnodontus (Eigenmann, 1911), new combination, a polymorphic characid fish from the rio Iguaçu basin, Brazil

Table 2. The ranges of standard length (SL) and ratios suggested by canonical discriminant analysis are shown for the three morphotypes of Astyanax gymnodontus. Abbreviations of truss measurements are shown according to Table 1, and traditional measurements are: BOD, body depth; CPD, caudal-peduncle depth; CPL, caudal-peduncle length; DFL, dorsal-fin length; HL, head length; IOD, interorbital distance; JW, jaw width; OD, orbital diameter; PDL, predorsal length; and SNL, snout length. Bolded ratios correspond to those responsible for a faint separation between morphotypes in axis 2 of the principal components analysis shown in Fig. 2. Morphotypes“ P. gymnodontus ”“ Psalidodon sp. ”“ Astyanax sp. F ”Morphotypes“ P. gymnodontus ”“ Psalidodon sp. ”“ Astyanax sp. F ”LowHighMeanLowHighMeanLowHighMeanRatiosLowHighMeanLowHighMeanLowHighMeanRatios/SL range56.1123.491.558.0122.289.452.0136.889.7D-F/A-I1.722.302.021.752.422.001.592.101.78SL/CPL9.9512.0510.7210.3412.5611.2610.0712.2710.92D-F/J-I2.132.942.522.222.862.481.852.822.22BOD/C-G0.971.131.030.921.141.030.981.101.03G-E/G-F1.001.171.111.051.211.121.031.221.11BOD/D-G0.961.081.030.961.121.020.971.121.03G-E/E-F2.893.523.152.993.783.222.803.533.16BOD/E-F2.162.612.392.212.712.412.212.602.43G-E/A-J7.2410.148.427.459.418.426.678.677.83HL/H-G0.851.150.980.871.251.020.871.301.04G-E/A-I2.523.352.882.503.392.842.132.992.55HL/J-B0.991.091.030.891.161.050.941.171.04G-E/B-I1.742.031.881.622.211.891.511.941.76HL/D-E0.821.070.980.811.221.030.921.361.08G-E/BOD1.191.431.321.241.441.331.201.401.30C-B/SNL3.254.773.983.374.974.153.165.093.90G-E/DFL1.772.302.031.802.231.981.512.241.90C-B/IOD2.653.773.243.023.993.342.503.583.05G-E/ OD4.416.925.543.886.235.354.027.025.05C-B/J-B0.921.251.080.831.421.140.811.261.06G-E/D-E1.662.111.901.662.241.951.732.211.92PDL/G-E0.951.141.050.991.151.071.001.201.11G-E/D-G1.241.491.361.271.501.361.221.471.34PDL/C-G1.311.621.441.321.631.471.331.711.49G-E/D-F1.301.531.431.291.521.421.291.571.43PDL/G-F1.081.271.171.071.281.191.121.401.23G-E/C-G1.241.481.361.231.491.381.231.521.34PDL/E-F3.023.843.323.023.933.433.293.803.50G-E/ IOD5.416.415.944.946.985.884.846.015.32E-F/CPD1.221.451.321.181.421.311.181.381.28G-E/C-D3.274.003.663.274.073.643.234.093.54E-F/IOD1.602.101.891.472.121.831.501.881.68G-F/A-I2.212.932.592.243.062.541.972.682.30E-F/OD1.382.111.761.162.011.671.282.141.59G-F/D-F1.181.421.281.161.441.271.211.461.29A-I/IOD1.732.372.071.692.332.081.832.412.10G-F/ IOD4.906.085.344.526.495.264.145.544.81A-I/OD1.582.251.931.492.221.881.722.361.98G-F/ DFL1.602.011.831.612.071.771.422.091.72H-G/JW2.663.363.042.553.673.102.403.412.80G-F/ OD3.986.054.983.485.594.793.706.314.56H-G/ DFL0.881.281.080.851.211.020.771.221.03G-F/C-D2.803.743.292.933.553.262.783.773.20C-H/D-G0.991.181.061.021.171.070.991.181.10I-H/SNL1.402.021.651.381.971.681.412.051.68C-H/C-G1.001.171.061.001.211.081.031.221.10J-B/I-B0.911.000.940.831.020.950.891.000.95C-G/D-G0.921.031.000.891.090.990.921.091.00J-B/E-F1.401.831.581.352.291.621.511.941.72C-G/E-F2.112.512.312.112.662.342.092.572.36B-H/I-B0.881.070.930.871.080.950.890.990.95C-G/A-J4.907.436.185.267.116.135.036.835.84B-H/E-F1.431.791.571.402.411.631.561.901.71C-G/A-I1.802.532.111.732.492.071.652.281.90B-H/CPD1.862.382.071.853.172.141.992.542.18C-G/DFL1.291.741.491.291.691.441.151.681.42I-B/ CPD1.982.412.211.892.942.242.132.742.30A-B/C-D1.682.131.911.612.201.891.702.601.97I-B/ DFL0.951.191.080.911.161.050.981.201.08D-G/E-F2.052.532.322.112.742.362.172.592.37I-B/ IOD2.923.563.162.653.643.112.783.433.04D-G/A-J4.867.466.215.227.046.195.036.865.87I-B/D-E0.861.131.010.841.291.040.921.361.10D-G/A-I1.782.492.121.732.492.091.642.351.91I-B/E-F1.501.851.681.442.231.711.632.081.81D-G/A-B1.261.601.411.181.721.421.151.611.35I-B/C-B0.851.160.980.781.180.940.861.261.00D-G/ DFL1.261.711.501.291.671.461.201.761.42D-E/A-I1.321.771.521.161.801.461.131.691.34D-G/OD3.275.154.082.934.833.943.075.153.78D-E/B-H0.881.261.060.721.281.030.831.150.97D-F/D-E1.171.471.331.191.591.371.201.481.34D-E/ OD2.253.612.932.013.492.771.953.762.64D-F/ OD3.034.543.882.934.753.762.904.893.53D-E/IOD2.773.583.132.524.053.032.403.232.79表2 展示了裸腹脂鲤（Astyanax gymnodontus）三个形态型的标准体长（standard length, SL）范围及典型判别分析推荐的比值数据。框架测量指标的缩写详见表1，传统形态测量指标包括：体高（BOD, body depth）、尾柄高（CPD, caudal-peduncle depth）、尾柄长（CPL, caudal-peduncle length）、背鳍长（DFL, dorsal-fin length）、头长（HL, head length）、眼间距（IOD, interorbital distance）、颌宽（JW, jaw width）、眼径（OD, orbital diameter）、背前长（PDL, predorsal length）以及吻长（SNL, snout length）。加粗标注的比值对应于图2主成分分析第二轴上实现形态型微弱区分的核心比值。 形态型：裸腹脂鲤（P. gymnodontus）、帕拉多脂鲤未定种（Psalidodon sp.）、阿氏脂鲤未定种F（Astyanax sp. F） 比值 最小值 最大值 平均值 最小值 最大值 平均值 最小值 最大值 平均值 /SL范围 56.1 123.4 91.5 58.0 122.2 89.4 52.0 136.8 89.7 D-F/A-I 1.72 2.30 2.02 1.75 2.42 2.00 1.59 2.10 1.78 SL/CPL 9.95 12.05 10.72 10.34 12.56 11.26 10.07 12.27 10.92 D-F/J-I 2.13 2.94 2.52 2.22 2.86 2.48 1.85 2.82 2.22 BOD/C-G 0.97 1.13 1.03 0.92 1.14 1.03 0.98 1.10 1.03 G-E/G-F 1.00 1.17 1.11 1.05 1.21 1.12 1.03 1.22 1.11 BOD/D-G 0.96 1.08 1.03 0.96 1.12 1.02 0.97 1.12 1.03 G-E/E-F 2.89 3.52 3.15 2.99 3.78 3.22 2.80 3.53 3.16 BOD/E-F 2.16 2.61 2.39 2.21 2.71 2.41 2.21 2.60 2.43 G-E/A-J 7.24 10.14 8.42 7.45 9.41 8.42 6.67 8.67 7.83 HL/H-G 0.85 1.15 0.98 0.87 1.25 1.02 0.87 1.30 1.04 G-E/A-I 2.52 3.35 2.88 2.50 3.39 2.84 2.13 2.99 2.55 HL/J-B 0.99 1.09 1.03 0.89 1.16 1.05 0.94 1.17 1.04 G-E/B-I 1.74 2.03 1.88 1.62 2.21 1.89 1.51 1.94 1.76 HL/D-E 0.82 1.07 0.98 0.81 1.22 1.03 0.92 1.36 1.08 G-E/BOD 1.19 1.43 1.32 1.24 1.44 1.33 1.20 1.40 1.30 PDL/G-E 0.95 1.14 1.05 0.99 1.15 1.07 1.00 1.20 1.11 G-E/D-G 1.24 1.49 1.36 1.27 1.50 1.36 1.22 1.47 1.34 PDL/C-G 1.31 1.62 1.44 1.32 1.63 1.47 1.33 1.71 1.49 G-E/C-G 1.24 1.48 1.36 1.23 1.49 1.38 1.23 1.52 1.34 PDL/G-F 1.08 1.27 1.17 1.07 1.28 1.19 1.12 1.40 1.23 G-E/D-F 1.30 1.53 1.43 1.29 1.52 1.42 1.29 1.57 1.43 PDL/E-F 3.02 3.84 3.32 3.02 3.93 3.43 3.29 3.80 3.50 G-E/D-E 1.66 2.11 1.90 1.66 2.24 1.95 1.73 2.21 1.92 E-F/CPD 1.22 1.45 1.32 1.18 1.42 1.31 1.18 1.38 1.28 G-E/DFL 1.77 2.30 2.03 1.80 2.23 1.98 1.51 2.24 1.90 E-F/IOD 1.60 2.10 1.89 1.47 2.12 1.83 1.50 1.88 1.68 G-E/OD 4.41 6.92 5.54 3.88 6.23 5.35 4.02 7.02 5.05 E-F/OD 1.38 2.11 1.76 1.16 2.01 1.67 1.28 2.14 1.59 G-F/A-I 2.21 2.93 2.59 2.24 3.06 2.54 1.97 2.68 2.30 A-I/IOD 1.73 2.37 2.07 1.69 2.33 2.08 1.83 2.41 2.10 G-F/DFL 1.60 2.01 1.83 1.61 2.07 1.77 1.42 2.09 1.72 A-I/OD 1.58 2.25 1.93 1.49 2.22 1.88 1.72 2.36 1.98 G-F/OD 3.98 6.05 4.98 3.48 5.59 4.79 3.70 6.31 4.56 H-G/JW 2.66 3.36 3.04 2.55 3.67 3.10 2.40 3.41 2.80 G-F/C-D 2.80 3.74 3.29 2.93 3.55 3.26 2.78 3.77 3.20 H-G/DFL 0.88 1.28 1.08 0.85 1.21 1.02 0.77 1.22 1.03 C-H/D-G 0.99 1.18 1.06 1.02 1.17 1.07 0.99 1.18 1.10 I-H/SNL 1.40 2.02 1.65 1.38 1.97 1.68 1.41 2.05 1.68 C-H/C-G 1.00 1.17 1.06 1.00 1.21 1.08 1.03 1.22 1.10 J-B/I-B 0.91 1.00 0.94 0.83 1.02 0.95 0.89 1.00 0.95 C-G/D-G 0.92 1.03 1.00 0.89 1.09 0.99 0.92 1.09 1.00 J-B/E-F 1.40 1.83 1.58 1.35 2.29 1.62 1.51 1.94 1.72 C-G/E-F 2.11 2.51 2.31 2.11 2.66 2.34 2.09 2.57 2.36 B-H/I-B 0.88 1.07 0.93 0.87 1.08 0.95 0.89 0.99 0.95 C-G/A-J 4.90 7.43 6.18 5.26 7.11 6.13 5.03 6.83 5.84 B-H/E-F 1.43 1.79 1.57 1.40 2.41 1.63 1.56 1.90 1.71 C-G/A-I 1.80 2.53 2.11 1.73 2.49 2.07 1.65 2.28 1.90 B-H/CPD 1.86 2.38 2.07 1.85 3.17 2.14 1.99 2.54 2.18 C-G/DFL 1.29 1.74 1.49 1.29 1.69 1.44 1.15 1.68 1.42 I-B/CPD 1.98 2.41 2.21 1.89 2.94 2.24 2.13 2.74 2.30 A-B/C-D 1.68 2.13 1.91 1.61 2.20 1.89 1.70 2.60 1.97 I-B/DFL 0.95 1.19 1.08 0.91 1.16 1.05 0.98 1.20 1.08 D-G/E-F 2.05 2.53 2.32 2.11 2.74 2.36 2.17 2.59 2.37 I-B/IOD 2.92 3.56 3.16 2.65 3.64 3.11 2.78 3.43 3.04 D-G/A-J 4.86 7.46 6.21 5.22 7.04 6.19 5.03 6.86 5.87 I-B/D-E 0.86 1.13 1.01 0.84 1.29 1.04 0.92 1.36 1.10 D-G/A-I 1.78 2.49 2.12 1.73 2.49 2.09 1.64 2.35 1.91 I-B/E-F 1.50 1.85 1.68 1.44 2.23 1.71 1.63 2.08 1.81 D-G/A-B 1.26 1.60 1.41 1.18 1.72 1.42 1.15 1.61 1.35 I-B/C-B 0.85 1.16 0.98 0.78 1.18 0.94 0.86 1.26 1.00 D-G/DFL 1.26 1.71 1.50 1.29 1.67 1.46 1.20 1.76 1.42 D-E/A-I 1.32 1.77 1.52 1.16 1.80 1.46 1.13 1.69 1.34 D-G/OD 3.27 5.15 4.08 2.93 4.83 3.94 3.07 5.15 3.78 D-E/B-H 0.88 1.26 1.06 0.72 1.28 1.03 0.83 1.15 0.97 D-F/D-E 1.17 1.47 1.33 1.19 1.59 1.37 1.20 1.48 1.34 D-E/OD 2.25 3.61 2.93 2.01 3.49 2.77 1.95 3.76 2.64 D-F/OD 3.03 4.54 3.88 2.93 4.75 3.76 2.90 4.89 3.53 D-E/IOD 2.77 3.58 3.13 2.52 4.05 3.03 2.40 3.23 2.79 C-B/SNL 3.25 4.77 3.98 3.37 4.97 4.15 3.16 5.09 3.90 C-B/IOD 2.65 3.77 3.24 3.02 3.99 3.34 2.50 3.58 3.05 C-B/J-B 0.92 1.25 1.08 0.83 1.42 1.14 0.81 1.26 1.06 G-E/C-D 3.27 4.00 3.66 3.27 4.07 3.64 3.23 4.09 3.54