太行山猕猴掌面肤纹三角分布

Distribution of the triradius on the palms in Taihang Macaca mulatta

了解太行山猕猴掌面三角的分布特征。方法：直接观察太行山猕猴掌面肤纹标本31例。结果：太行山猕猴掌面三角常出现的三角有10个，三角数目在8～11个之间，平均9．1个。结论：太行山猕猴掌面三角分布模式与其他灵长类掌面三角相比有差异。掌面三角性差和侧差无差异。造成这些差异的主要原因与灵长类动物进化程度、掌垫发育、花纹类型以及观察方法有关。

To report the characteristic of the triradius on the palms in the Taihang Macaca mulatta. Methods： The sample comprised 31 individuals （8 males and 23 females） whose dermatoglyphics were completed and clear. The triradii on palms were taken with a digital camera or direct observation. Results： There constantly existed ten triradii on the palms in Macaca rnulatta, and the average number of the triradius was 9. 1, and they ranged from 8 to 11. Conclusion： There is a significant difference in the position of palmar triradii between Macaca mulatta and other primates. Sex difference and bi- manual difference were not significant. The difference is mainly clue to the evolution degree of primates, the development of palmar pad, the dermatoglyphie patterns and the printing procedure.