Evolution of ocelli and optic neuropils of Pycnogonida (Arthropoda): Fine structure and neuroanatomy

我们试图在两个层面上对碧果蛛视觉系统进行比较分析：(1)根据其实际系统分类对碧果蛛主要谱系代表的四重眼进行精细结构分析，(2)使用神经解剖学技术分析三种“模型”碧果蛛的视觉神经颗粒。该项目的范围是揭示碧萝丝虫地面平面图中视觉系统的一系列特征，从而有助于重建最古老的节肢动物门的系统发育。

We seek to undertake a comparative analysis of the pycnogonid visual system on two levels: (1) Fine structural analysis of the eye quadruple of representatives of the major pycnogonid lineages according to their actual systematics, and (2) analysis of the visual neuropils of three “model” pycnogonids using neuroanatomical techniques. The scope of the project is to reveal the visual system’s sets of characters in the groundplan of Pycnogonida and thus contribute to reconstruction of the phylogeny of the most ancestral arthropod phyla.