Table 1 in A new species of the genus Pimelodus La Cépède, 1803 from the rio Iguaçu basin and a reappraisal of Pimelodus ortmanni Haseman, 1911 from the rio Paraná system, Brazil (Ostariophysi: Siluriformes: Pimelodidae)
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Table 1. Morphometrics of Pimelodus britskii (n=25) and Pimelodus ortmanni (n=18) from rio Iguaçu basin. Items 1-19 as ratio of the standard length, 20-24 as ratio of the head length. Min. = minimum, Max. = maximum, SD = Standard deviation. Pimelodus ortmanniPimelodus britskiiHolotypeMin-Max.MeanSDHolotypeMin-Max.MeanSD1. Standard length2. Pre-dorsal length2.72.7-2.92.80.0452.82.3-2.62.40.0753. Dorsal-fin base length7.36.0-6.76.40.1938.56.4-7.46.80.2694. Dorsal-fin to adipose-fin distance5.45.4-9.17.00.8886.85.8-9.17.00.8245. Adipose-fin base length4.93.7-5.04.20.3115.94.3-5.75.00.2706. Adipose-fin to caudal-fin base distance7.06.2-7.36.90.3679.15.8-7.46.60.4087. Pre-pelvic length2.02.0-2.12.10.0432.41.9-2.01.90.0398. Pelvic-fin to anal-fin distance4.43.8-4.44.10.2064.83.8-4.94.50.2749. Anal-fin base length10.19.0-11.79.80.61911.98.4-10.89.40.64410. Anal-fin to caudal-fin base distance4.95.0-5.45.20.1406.74.6-6.05.20.25411. Caudal peduncle depth15.012.2-14.713.00.70813.59.7-14.212.31.23112. First dorsal-fin ray to first pelvic-fin distance4.23.5-4.43.80.2274.53.2-4.23.70.27313. First pelvic-fin ray to last dorsal-fin ray distance6.04.2-6.15.00.4685.83.9-6.05.00.60914. Last dorsal-fin ray to first anal-fin ray distance3.43.2-3.73.40.1344.03.1-4.13.60.25215. Pectoral girdle width6.15.4-6.25.80.2306.24.7-5.75.10.17916. Maxillary barbel length-1.3-1.81.50.153-0.8-1.61.20.25217. Dorsal spine length-4.9-5.95.30.319-4.3-5.04.70.19218. Pectoral spine length-5.0-6.15.50.287-4.2-5.04.60.17819. Head length3.93.7-4.54.00.1844.23.4-3.63.50.07720. Snout length2.31.9-2.42.20.1072.12.0-2.42.20.11721. Eye diameter4.73.5-4.94.10.3767.63.7-5.74.50.64022. Eye-operculum distance2.92.9-3.53.20.1592.52.7-3.22.90.11223. Interorbital distance3.93.6-5.24.20.3683.33.2-4.53.90.36724. Mouth width-2.6-3.53.20.236-2.4-3.22.80.176
表1 伊瓜苏河（rio Iguaçu）盆地布氏油鲶（Pimelodus britskii，n=25）与奥氏油鲶（Pimelodus ortmanni，n=18）的形态测量参数。其中1~19项为标准体长（standard length）的比值，20~24项为头长（head length）的比值。Min.为最小值（minimum），Max.为最大值，SD为标准差（Standard deviation）。 奥氏油鲶（Pimelodus ortmanni） 布氏油鲶（Pimelodus britskii） 正模标本 最小值-最大值 均值 标准差 正模标本 最小值-最大值 均值 标准差 1. 标准体长（standard length）2.72.7-2.92.80.0452.82.3-2.62.40.075 2. 背前长（pre-dorsal length）7.36.0-6.76.40.1938.56.4-7.46.80.269 3. 背鳍基长（dorsal-fin base length）7.36.0-6.76.40.1938.56.4-7.46.80.269 4. 背鳍至脂鳍间距（dorsal-fin to adipose-fin distance）5.45.4-9.17.00.8886.85.8-9.17.00.824 5. 脂鳍基长（adipose-fin base length）4.93.7-5.04.20.3115.94.3-5.75.00.270 6. 脂鳍至尾鳍基间距（adipose-fin to caudal-fin base distance）7.06.2-7.36.90.3679.15.8-7.46.60.408 7. 腹前长（pre-pelvic length）2.02.0-2.12.10.0432.41.9-2.01.90.039 8. 腹鳍至臀鳍间距（pelvic-fin to anal-fin distance）4.43.8-4.44.10.2064.83.8-4.94.50.274 9. 臀鳍基长（anal-fin base length）10.19.0-11.79.80.61911.98.4-10.89.40.644 10. 臀鳍至尾鳍基间距（anal-fin to caudal-fin base distance）4.95.0-5.45.20.1406.74.6-6.05.20.254 11. 尾柄高（caudal peduncle depth）15.012.2-14.713.00.70813.59.7-14.212.31.231 12. 第一背鳍鳍条至第一腹鳍鳍条间距（first dorsal-fin ray to first pelvic-fin distance）4.23.5-4.43.80.2274.53.2-4.23.70.273 13. 第一腹鳍鳍条至最后背鳍鳍条间距（first pelvic-fin ray to last dorsal-fin ray distance）6.04.2-6.15.00.4685.83.9-6.05.00.609 14. 最后背鳍鳍条至第一臀鳍鳍条间距（last dorsal-fin ray to first anal-fin ray distance）3.43.2-3.73.40.1344.03.1-4.13.60.252 15. 胸肩带宽（pectoral girdle width）6.15.4-6.25.80.2306.24.7-5.75.10.179 16. 上颌须长（maxillary barbel length）-1.3-1.81.50.153-0.8-1.61.20.252 17. 背鳍棘长（dorsal spine length）-4.9-5.95.30.319-4.3-5.04.70.192 18. 胸鳍棘长（pectoral spine length）-5.0-6.15.50.287-4.2-5.04.60.178 19. 头长（head length）3.93.7-4.54.00.1844.23.4-3.63.50.077 20. 吻长（snout length）2.31.9-2.42.20.1072.12.0-2.42.20.117 21. 眼径（eye diameter）4.73.5-4.94.10.3767.63.7-5.74.50.640 22. 眼至鳃盖间距（eye-operculum distance）2.92.9-3.53.20.1592.52.7-3.22.90.112 23. 眶间距（interorbital distance）3.93.6-5.24.20.3683.33.2-4.53.90.367 24. 口宽（mouth width）-2.6-3.53.20.236-2.4-3.22.80.176
