Table 6 in Evolution in the dark: Unexpected genetic diversity and morphological stasis in the blind, aquifer-dwelling catfish Horaglanis
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Table 6. Intraspecific variation in morphometric characters across three different species of Horaglanis from our collection. Comparative material of Horaglanis alikunhii was not available for morphometric analysis. CharactersHoraglanis populi (n = 6)Horaglanis krishnai (n = 10)Horaglanis abdulkalami (n = 3)HolotypeMean (sd)RangeMean (sd)RangeMean (sd)RangeTotal Length37.031.9 (3.2)27.1-37.036.2 (5.5)28.7-43.432.4 (0.4)32-32.8Standard Length32.528.2 (2.9)23.9-32.532.5 (5.2)25.0-39.928.7 (0.2)28.5-28.9% SLHead length16.917.9 (1.9)15.7-20.416.0 (0.7)14.9-16.917.3 (1.9)15.1-18.5Pre-dorsal length31.334.4 (2.3)31.3-36.934.1 (6.1)27.5-47.831.9 (1)30.9-32.9Dorsal-fin length8.98.0 (0.8)6.8-8.97.5 (0.7)6.5-8.710 (0.2)9.8-10.2Dorsal-fin base length58.561.4 (3.9)57.4-68.258.7 (4.7)52.1-64.359.7 (4.4)56-64.5Length from origin of dorsal fin to origin of anal fin29.027.8 (0.9)26.4-29.023.8 (3.3)18.4-27.823.3 (0.3)23.1-23.6Length from origin of dorsal fin to origin of pelvic fin9.011.9 (2.1)9.0-14.110.1 (1.7)7.3-12.69.8 (0.5)9.3-10.2Anal-fin length8.88.2 (1.0)7.2-9.96.9 (1.2)5.2-9.08.9 (0.3)8.6-9.1Anal-fin base length37.536.1 (3.1)31.6-39.039.2 (2.5)34.8-43.539.5 (3.2)36.2-42.6Pelvic-fin length7.88.5 (1.4)7.2-10.97.5 (2.8)4.4-12.19.2 (1.2)7.8-10Caudal-fin length15.714.7 (1.5)13.2-16.712.5 (1.9)8.7-15.614.2 (0.7)13.5-14.9Caudal-peduncle length9.311.9 (2.9)9.3-16.910.8 (2.1)8.3-15.610.5 (0.8)9.8-11.4
表6 本次馆藏Horaglanis属（Horaglanis）3个物种的种内形态测量性状变异。注：未获取到Horaglanis alikunhii的对比标本，无法开展其形态测量分析。 性状 | Horaglanis populi（样本量n=6）均值(标准差，sd) | Horaglanis populi（样本量n=6）范围 | Horaglanis krishnai（样本量n=10）均值(标准差，sd) | Horaglanis krishnai（样本量n=10）范围 | Horaglanis abdulkalami（样本量n=3）均值(标准差，sd) | Horaglanis abdulkalami（样本量n=3）范围 | 正模标本数值 总长度 | 31.9(3.2) | 27.1-37.0 | 36.2(5.5) | 28.7-43.4 | 32.4(0.4) | 32-32.8 | 37.0 标准体长 | 28.2(2.9) | 23.9-32.5 | 32.5(5.2) | 25.0-39.9 | 28.7(0.2) | 28.5-28.9 | 32.5 占标准体长百分比 | 17.9(1.9) | 15.7-20.4 | 16.0(0.7) | 14.9-16.9 | 17.3(1.9) | 15.1-18.5 | 16.9 背前长 | 34.4(2.3) | 31.3-36.9 | 34.1(6.1) | 27.5-47.8 | 31.9(1.0) | 30.9-32.9 | 31.3 背鳍长 | 8.0(0.8) | 6.8-8.9 | 7.5(0.7) | 6.5-8.7 | 10.0(0.2) | 9.8-10.2 | 8.9 背鳍基长 | 61.4(3.9) | 57.4-68.2 | 58.7(4.7) | 52.1-64.3 | 59.7(4.4) | 56-64.5 | 58.5 背鳍起点至臀鳍起点间距 | 27.8(0.9) | 26.4-29.0 | 23.8(3.3) | 18.4-27.8 | 23.3(0.3) | 23.1-23.6 | 29.0 背鳍起点至腹鳍起点间距 | 11.9(2.1) | 9.0-14.1 | 10.1(1.7) | 7.3-12.6 | 9.8(0.5) | 9.3-10.2 | 9.0 臀鳍长 | 8.2(1.0) | 7.2-9.9 | 6.9(1.2) | 5.2-9.0 | 8.9(0.3) | 8.6-9.1 | 8.8 臀鳍基长 | 36.1(3.1) | 31.6-39.0 | 39.2(2.5) | 34.8-43.5 | 39.5(3.2) | 36.2-42.6 | 37.5 腹鳍长 | 8.5(1.4) | 7.2-10.9 | 7.5(2.8) | 4.4-12.1 | 9.2(1.2) | 7.8-10 | 7.8 尾鳍长 | 14.7(1.5) | 13.2-16.7 | 12.5(1.9) | 8.7-15.6 | 14.2(0.7) | 13.5-14.9 | 15.7 尾柄长 | 11.9(2.9) | 9.3-16.9 | 10.8(2.1) | 8.3-15.6 | 10.5(0.8) | 9.8-11.4 | 9.3
