TABLE 1 in A new genus and species of miniature tridentine catfish from the Amazon basin (Siluriformes: Trichomycteridae)
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TABLE 1 | Morphometric data for Rhinotridens chromocaudatus; n = 10; range includes holotype. SD, standard deviation. HolotypeRangeMeanSDStandard length (mm)17.5716.10–17.57––Percentage of standard lengthBody depth10.669.67–12.1110.970.7Caudal peduncle length13.757.90–15.3812.382.3Caudal peduncle depth6.265.63–7.496.510.4Predorsal length68.4366.79–70.2268.681.0Preanal length61.6659.44–71.8162.623.5Dorsal-fin base length8.467.67–11.159.041.0Anal-fin base length20.1720.17–25.5922.391.6Distance between dorsal-fin origin and middle of caudal-fin base32.4829.33–35.9633.081.7Distance between anal-fin origin and middle caudal-fin base38.5534.31–40.9538.841.9Pectoral girdle width10.879.71–11.8010.880.6Pectoral fin length8.678.17–10.339.300.7Prepelvic length47.2042.07–49.9246.352.4Head length18.8016.48–19.4018.181.1Percentage of head lengthHead width60.0455.91–72.7263.195.1Head depth43.5943.59–51.4746.752.6Interorbital distance19.7819.78–29.3924.773.1Snout length38.8534.11–47.9641.604.2Maxillary-barbel length17.7617.76–24.8722.212.5Rictal-barbel length9.898.85–16.4412.272.6Mouth width40.4640.45–51.8444.413.8Eye diameter23.5120.02–30.9126.773.2
表1 红尾鼻齿脂鲤（Rhinotridens chromocaudatus）形态测量数据；样本量n=10，测量范围包含正模标本。SD为标准差（standard deviation）。 1. 标准体长（mm）：正模值17.57，测量范围16.10–17.57，均值—，标准差— 2. 以标准体长百分比计（各指标数值为对应参数占标准体长的比例）： - 体高：正模值10.66，范围9.67–12.11，均值10.97，标准差0.7 - 尾柄长：正模值13.75，范围7.90–15.38，均值12.38，标准差2.3 - 尾柄高：正模值6.26，范围5.63–7.49，均值6.51，标准差0.4 - 背前长：正模值68.43，范围66.79–70.22，均值68.68，标准差1.0 - 臀前长：正模值61.66，范围59.44–71.81，均值62.62，标准差3.5 - 背鳍基长：正模值8.46，范围7.67–11.15，均值9.04，标准差1.0 - 臀鳍基长：正模值20.17，范围20.17–25.59，均值22.39，标准差1.6 - 背鳍起点至尾鳍基部中点距离：正模值32.48，范围29.33–35.96，均值33.08，标准差1.7 - 臀鳍起点至尾鳍基部中点距离：正模值38.55，范围34.31–40.95，均值38.84，标准差1.9 - 胸鳍带宽：正模值10.87，范围9.71–11.80，均值10.88，标准差0.6 - 胸鳍长：正模值8.67，范围8.17–10.33，均值9.30，标准差0.7 - 腹前长：正模值47.20，范围42.07–49.92，均值46.35，标准差2.4 - 头长：正模值18.80，范围16.48–19.40，均值18.18，标准差1.1 3. 以头长百分比计（各指标数值为对应参数占头长的比例）： - 头宽：正模值60.04，范围55.91–72.72，均值63.19，标准差5.1 - 头高：正模值43.59，范围43.59–51.47，均值46.75，标准差2.6 - 眼间距：正模值19.78，范围19.78–29.39，均值24.77，标准差3.1 - 吻长：正模值38.85，范围34.11–47.96，均值41.60，标准差4.2 - 上颌须长：正模值17.76，范围17.76–24.87，均值22.21，标准差2.5 - 口角须长：正模值9.89，范围8.85–16.44，均值12.27，标准差2.6 - 口宽：正模值40.46，范围40.45–51.84，均值44.41，标准差3.8 - 眼径：正模值23.51，范围20.02–30.91，均值26.77，标准差3.2
