东方沙蟒显微皮纹结构与功能

对隶属蟒科的东方沙蟒唇鳞的光学显微结构和扫描电镜下的超微结构的观察发现了类似小窝的结构，可能是原始的鳞片感受器官；对鳞片感受器的大小做了测量；同时观察了头部其他鳞片和身体中部背鳞和腹鳞的显微皮纹结构。所有鳞片的角皮层细胞平坦，没有大的表面特征结构，除了后缘齿状结构、微孔和窄而短的边界。考虑到穴居种类减少反光不是主要的选择因子，而主要选择是减少摩擦和清除污物，显微皮纹特征很好地符合这一假说。不同部位鳞片的差异主要表现在角皮层细胞的形状和的大小，微孔的有无，细胞后缘齿状结构的有无和大小以及细胞边界重叠的程度。首次描述了鹅卵石样多孔细胞这一微饰类型。

Scale Structure and Function of Tatar Sand Boa under Light and Scanning Electron Microscope

Tatar sand boa(Eryx tataricus) is belonging to Eryx,Dandin,Boidae.We found some little pit structures on labial under light and scanning electron microscope,and they maybe the original scale sensory organ.We also measured these organs.Microornamentation was examined on the exposed oberhautchen surface,including other part of head,dorsal,and ventral scales.All oberhautchen cells were flat and exhibited no major surface features other than occasional posterior margin denticulations,small pores/pits,and narrow ridges.This is largely consistent with the hypothesis that friction reduction and dirt shedding are the main selective pressures on microornamentation,given that reducing shine is not of key importance in fossorial animals.Variations among scales were observed in the shape and size of oberhautchen cells,in the presence of pores/pits,in the presence and size of denticulations on posterior cell margins,and in the level or imbricate nature of cell borders.We also describe a new microornamentation type,named cobble-shaped and pitted cell.