关键词: 肤纹;嵴线数;三叉点

Abstract: The normal values of 12 dermatoglyph1c parameters in 1000 Daur in Tacheng district, Xinjiang, China, are reported. The sample comprised of 500 males and 500 females. The results obtained from the total sample are as follows: Frequencies of finger patterns A, Lr, Lu and W are 2.46%, 3.16%, 44.81% and 49.57% respectively. Frequencies of different combinations of corresponding finger prints on both hands indicate that observed values of combinations W/W, Lr/Lr, Lu/Lu, A/A and T/L are significantly higher than expected values (p <0.01), and observed frequencies of combinations W/Lr, W/Lu and W/A are significantly lower than expected ones (p<0.01). The total finger ridge count (TFRC) in average is 144.29±44.29. Mean atd angle is 41.27±4.73. Mean tPD is 17.8±5.55. Mean a-b total ridge count is 37.25±5.31. The frequency of individuals with simian line comprises 3.8% of the total sample. The, frequency of true patterns constitutes 3.15% in palmar thenar area and 17.30% in palmar hypothenar area of the total. Frequencies of true patterns in palmar interdigital areas I1, I2, I3 and I4 are 0.25%, 1.85%, 24.5% and 57.5% respectively. Main line index of transversality in average are 20.63±4.30 on left and 23.52±4.93 on right hand in males; and 21.00±4.02 on left and 23.62±5.20 on right hand in females. Main line indices in average are 11.03±2.63 on left and 12.68±2.22 on right hand in males; 11.33±2.13 on left and 12.75±1.90 on right hand females.

Key words: Dermatoglyphics; Ridge counts; Triradius