EAKIN R M, WESTFALL J A
J Biophys Biochem Cytol. 1960 Oct;8(2):483-99. doi: 10.1083/jcb.8.2.483.
An electron microscopical study of the third eye of the Western Fence Lizard, Sceloporus occidentalis, fixed with 1 per cent osmium tetroxide, pH 7.4-7.6, for 16 to 20 hours at 0 degrees C., revealed the following new facts. The fibrillar system of the retinal photoreceptor consists of nine double fibrils enclosed in a sheath. Pigment cells and lens cells possess similar systems. Two short cylindrical centrioles are associated with the fibrillar apparatus: one, from which striated rootlets extend inward, lies at the base of the fibrils, with the other at an oblique angle to the axis of the system. A Golgi complex, whorls of endoplasmic reticulum, lipid (?) droplets, and other organelles and inclusions in the photoreceptors are described. An axon leads from the base of the photoreceptor into the nervous layer of the retina which consists of many nerve fibers and large ganglion cells. Although the pattern of neural connections has not yet been determined, some synapses were found. The parietal nerve consists of about 250 non-medullated fibers. The capsule of the eye usually has a layer of iridocytes, which contain rows of guanine (?) rods. A few parietal eyes of the Granite Night Lizard, Xantusia henshawi, were also examined. Large lipid (?) droplets occur in the bases of their receptoral processes.
对西部围栏蜥蜴（Sceloporus occidentalis）的松果体进行电子显微镜研究，将其用1%的四氧化锇在pH 7.4 - 7.6条件下于0摄氏度固定16至20小时，发现了以下新事实。视网膜光感受器的纤维系统由包裹在鞘内的九条双纤维组成。色素细胞和晶状体细胞具有类似的系统。两个短圆柱形中心粒与纤维装置相关联：一个位于纤维基部，有横纹的小根从其向内延伸，另一个与系统轴成斜角。描述了光感受器中的高尔基体、内质网的螺旋、脂质（？）滴以及其他细胞器和内含物。一条轴突从光感受器基部通向视网膜的神经层，该神经层由许多神经纤维和大型神经节细胞组成。尽管神经连接模式尚未确定，但发现了一些突触。顶神经由约250条无髓纤维组成。眼的囊通常有一层虹彩细胞，其中含有成排的鸟嘌呤（？）棒。还检查了花岗岩夜蜥蜴（Xantusia henshawi）的一些松果体。在它们感受器突起的基部有大的脂质（？）滴。
