TABLE 1 in Two species of Polycelis (Platyhelminthes, Tricladida, Planariidae) newly recorded for the Qinling Mountains and the Loess Plateau in China, with a comparative discussion on their karyotypes

TABLE 1 Karyotype parameters (mean values and standard deviations) of Polycelis asiatica; m: metacentric. sm: submetacentric. st: subtelocentric.
ChromosomeRelative lengthArm ratioCentromere indexChromosome type110.62±0.621.05±0.0248.86±0.49m29.61±0.741.06±0.0348.67±0.61m38.22±0.581.25±0.1744.82±3.32m46.18±0.031.87±0.2735.07±3.26sm55.89±0.081.39±0.0641.79±1.09m65.48±0.291.55±0.1639.32±2.43m74.93±0.161.94±0.1334.14±1.43sm84.72±0.341.42±0.1241.40±2.03m94.50±0.161.22±0.0945.06±1.85m104.44±0.173.07±0.0324.60±0.19st114.40±0.301.21±0.0945.47±1.69m124.33±0.172.69±0.1727.19±1.36sm134.27±0.121.36±0.3043.04±5.44m143.68±0.181.22±0.0441.02±0.87m153.46±0.171.55±0.1839.37±2.92m163.42±0.191.86±0.2335.23±2.49sm173.28±0.211.50±0.2540.34±4.45m182.96±0.051.40±0.0441.81±0.74m192.80±0.051.50±0.2542.45±4.51m202.80±0.041.18±0.1145.87±2.15m