蜂猴、倭蜂猴肢端特征

摘要

Objective:To explore the morphological characteristics of the limbs in slow loris (Nycticebus coucang)and pygmy loris (Nycticebus pygmaeus).Methods:7 adult slow loris (2 male,5 female) and 4 adult pygmy loris (3 male,1 female) were observed and their length of the digit was measured.Results:The limbs in the slow loris were bigger than those in the pygmy loris.Both the second digit in the slow loris and the pygmy loris had 1-1.2 cm nail in the length curling to middle part,others digits were flat.The order of the length of the digit in the forelimb was 4＞3＞5＞1＞2 and 4＞3＞5＞2＞1 in the hindlimb in the slow loris.There existed differences between the lengths of the digit of the forelimb and hindlimb in the slow loris.However,the order of the digit of the forelimb and hindlimb in length was 4＞3＞5＞1＞2 in pygmy loris.Conclusion:Those distinctive morphological differences in forelimb and hindlimb between the slow loris and pygmy loris are related with the species feature.%目的:研究蜂猴、倭蜂猴肢端形态的种属特征.方法:本研究通过观察成年7只蜂猴(2雄,5雌)和4只倭蜂猴(3雄,1雌),测量了它们的指(趾)骨长度,并将所得数据进行了分析.结果:蜂猴肢端大于倭蜂猴；蜂猴和倭蜂猴的第2趾端均有长1～1.2cm卷向内侧的细长趾甲,而其他指(趾)甲均呈扁平状.蜂猴的指骨长度顺序依次为4＞3＞5＞1＞2,趾骨顺序为4＞3＞5＞2＞1,指骨与趾骨长度排序有差异；倭蜂猴的指骨与趾骨排序无差异,都是4＞3＞5＞1＞2.结论:蜂猴和倭蜂猴其肢端形态差异与种属特征相关.