TABLE 1. Morphometric measurements and meristic counts for D. angustimarginis and D in Discogobio angustimarginis, a new species of cyprinid fish (Pisces: Teleostei) from the Jinsha-Jiang River in Yunnan Province, southwestern China
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TABLE 1. Morphometric measurements and meristic counts for D. angustimarginis and D. yunnanensis D. angustimarginis (n=11)D. yunnanensis (n=18)HolotypeRangeMeanSDRangeMeanSDStandard length (SL)86.264.4-109.988.9447.5-93.185Morphometric measurements% ofSLBody depth19.819.5-23.621.11.2718.9-27.022.62.12Head length19.818.0-23.320.31.7619.4-24.519.80.06Head width16.212.8-17.915.61.4314.1-17.516.01.01Head depth14.112.9-15.814.70.912.5-16.614.81.11Caudal-peduncle length14.014.0-19.416.91.4614.6-19.317.01.33Caudal-peduncle depth12.411.6-14.812.20.9011.0-14.312.60.84Dorsal-fin length16.516.4-22.219.52.0018.9-25.721.51.58Pectoral-fin length19.617.6-21.419.71.1417.6-25.220.11.61Ventral-fin length15.615.1-19.316.41.2715.5-21.417.31.20Anal-fin length15.014.5-18.015.71.1014.5-19.316.61.01D. angustimarginis (n=11)D. yunnanensis (n=18)HolotypeRangeMeanSDRangeMeanSDPredorsal length48.544.8-51.949.12.0645.8-52.849.41.80Prepectoral length17.617.6-22.319.51.5717.6-23.920.91.61Preventral length55.651.5-56.454.41.6550.0-58.354.31.68Preanal length75.673.1-76.9751.4170.1-79.575.01.87% ofHLSnout length48.639.6-53.347.54.3039.1-55.147.14.45Eye diameter19.318.3-25.422.31.9920.2-30.324.92.71Interorbital width57.153.2-64.158.4447.4-59.553.73.51Disc length26.323.2-31.427.52.6320.7-34.125.83.93Disc width45.841.4-52.446.03.9133.9-48.539.84.63Horse shoe-shaped fold width30.726.2-33.129.82.321.8-30.024.72.65of caudal-peduncle lengthWidth of caudal peduncle0.880.62-0.880.730.080.57-0.900.740.08% of pelvic to anal distanceVent to anal distance2519.4-30.225.13.1619.3-28.023.82.76of Disc lengthDisc width1.731.41-1.871.680.161.35-1.861.540.17Horse shoe-shaped skin width1.160.95-1.191.080.080.86-1.050.980.06Meristic countsDorsal-fin raysii,8ii,8ii,8Anal-fin raysii,5ii,5ii,5Pectoral-fin raysi,13i,13-15i,12-14Pelvic-fin raysi,8i,8i,8Lateral-line pored scales4443-4539-42Scales above lateral line65.0-6.05.5Scales below lateral line444Circum-peduncular scales161616 ......continued on the next page
表1 狭缘滇鳅（*D. angustimarginis*）与云南滇鳅（*D. yunnanensis*）的形态测量参数与计数性状 注：本数据集样本量分别为狭缘滇鳅（n=11）、云南滇鳅（n=18）；SD为标准差（Standard Deviation），SL为标准体长（Standard Length, SL），HL为头长（Head Length, HL）。 一、以标准体长（SL）为基准的形态测量指标 | 测量指标 | 狭缘滇鳅（n=11） | | | | 云南滇鳅（n=18） | | | |-------------------------|------------------|---|---|---|------------------|---|---| | | 正模标本 | 范围 | 均值 | SD | 范围 | 均值 | SD | | 标准体长 | 86.2 | 64.4–109.9 | 88.9 | 4.47 | 47.5–93.1 | 85 | — | | 体高（占SL百分比） | 19.8 | 19.5–23.6 | 21.1 | 1.27 | 18.9–27.0 | 22.6 | 2.12 | | 头长（占SL百分比） | 19.8 | 18.0–23.3 | 20.3 | 1.76 | 19.4–24.5 | 19.8 | 0.06 | | 头宽（占SL百分比） | 16.2 | 12.8–17.9 | 15.6 | 1.43 | 14.1–17.5 | 16.0 | 1.01 | | 头高（占SL百分比） | 14.1 | 12.9–15.8 | 14.7 | 0.91 | 12.5–16.6 | 14.8 | 1.11 | | 尾柄长（占SL百分比） | 14.0 | 14.0–19.4 | 16.9 | 1.46 | 14.6–19.3 | 17.0 | 1.33 | | 尾柄高（占SL百分比） | 12.4 | 11.6–14.8 | 12.2 | 0.90 | 11.0–14.3 | 12.6 | 0.84 | | 背鳍长（占SL百分比） | 16.5 | 16.4–22.2 | 19.5 | 2.00 | 18.9–25.7 | 21.5 | 1.58 | | 胸鳍长（占SL百分比） | 19.6 | 17.6–21.4 | 19.7 | 1.14 | 17.6–25.2 | 20.1 | 1.61 | | 腹鳍长（占SL百分比） | 15.6 | 15.1–19.3 | 16.4 | 1.27 | 15.5–21.4 | 17.3 | 1.20 | | 臀鳍长（占SL百分比） | 15.0 | 14.5–18.0 | 15.7 | 1.10 | 14.5–19.3 | 16.6 | 1.01 | 二、躯干其他测量指标 | 测量指标 | 狭缘滇鳅（n=11） | | | | 云南滇鳅（n=18） | | | |-------------------------|------------------|---|---|---|------------------|---|---| | | 正模标本 | 范围 | 均值 | SD | 范围 | 均值 | SD | | 背前距 | 48.5 | 44.8–51.9 | 49.1 | 2.06 | 45.8–52.8 | 49.4 | 1.80 | | 胸前距 | 17.6 | 17.6–22.3 | 19.5 | 1.57 | 17.6–23.9 | 20.9 | 1.61 | | 腹前距 | 55.6 | 51.5–56.4 | 54.4 | 1.65 | 50.0–58.3 | 54.3 | 1.68 | | 臀前距 | 75.6 | 73.1–76.9 | 75.0 | 1.41 | 70.1–79.5 | 75.0 | 1.87 | 三、以头长（HL）为基准的头部及附肢测量 | 测量指标 | 狭缘滇鳅（n=11） | | | | 云南滇鳅（n=18） | | | |-------------------------|------------------|---|---|---|------------------|---|---| | | 正模标本 | 范围 | 均值 | SD | 范围 | 均值 | SD | | 吻长（占HL百分比） | 48.6 | 39.6–53.3 | 47.5 | 4.30 | 39.1–55.1 | 47.1 | 4.45 | | 眼径（占HL百分比） | 19.3 | 18.3–25.4 | 22.3 | 1.99 | 20.2–30.3 | 24.9 | 2.71 | | 眶间距（占HL百分比） | 57.1 | 53.2–64.1 | 58.4 | 4.47 | 47.4–59.5 | 53.7 | 3.51 | | 吸盘长（占HL百分比） | 26.3 | 23.2–31.4 | 27.5 | 2.63 | 20.7–34.1 | 25.8 | 3.93 | | 吸盘宽（占HL百分比） | 45.8 | 41.4–52.4 | 46.0 | 3.91 | 33.9–48.5 | 39.8 | 4.63 | | 马蹄形褶皱宽（占尾柄长百分比） | 30.7 | 26.2–33.1 | 29.8 | 2.32 | 21.8–30.0 | 24.7 | 2.65 | | 尾柄宽 | 0.88 | 0.62–0.88 | 0.73 | 0.08 | 0.57–0.90 | 0.74 | 0.08 | | 泄殖孔至臀鳍距（占腹臀间距百分比） | — | 19.4–30.2 | 25.1 | 3.16 | 19.3–28.0 | 23.8 | 2.76 | | 吸盘宽（占吸盘长百分比） | 1.73 | 1.41–1.87 | 1.68 | 0.16 | 1.35–1.86 | 1.54 | 0.17 | | 马蹄形皮肤褶宽（占吸盘长百分比） | 1.16 | 0.95–1.19 | 1.08 | 0.08 | 0.86–1.05 | 0.98 | 0.06 | 四、计数性状 | 性状类型 | 狭缘滇鳅（n=11） | 云南滇鳅（n=18） | |-------------------------|------------------|------------------| | 背鳍鳍条 | Ⅱ,8 | Ⅱ,8 | | 臀鳍鳍条 | Ⅱ,5 | Ⅱ,5 | | 胸鳍鳍条 | Ⅰ,13（范围13–15） | Ⅰ,12–14 | | 腹鳍鳍条 | Ⅰ,8 | Ⅰ,8 | | 侧线穿孔鳞 | 44 | 39–42 | | 侧线上方鳞 | 5.0–6.0（均值5.5） | — | | 侧线下方鳞 | 4 | 4 | | 围尾柄鳞 | 16 | 16 | ……续于下一页
