Marshall N J
School of Biological Sciences, University of Sussex, Falmer, Brighton, UK.
Nature. 1988 Jun 9;333(6173):557-60. doi: 10.1038/333557a0.
The apposition compound eyes of mantis shrimps (stomatopods) are divided into three sections, the dorsal and ventral hemispheres and the midband. Many ommatidia of both hemispheres, and all those in the midband, sample the same narrow band in space. The function of the morphologically distinct midband region is not clear, but new evidence suggests that it may be adapted in a unique manner for colour and polarization vision. A series of carotenoid colour filters screen the photopigment and potentially provide a tetrachromatic input for contrast-enhanced vision or true colour vision. The filters are blocks of coloured droplets (red, orange, yellow, purple, pink or blue) within the rhabdoms of two rows of midband ommatidia. The arrangement of tiered microvilli in two other midband rows suggests that they provide a unique form of polarization vision.
螳螂虾（口足类动物）的并置复眼分为三个部分：背半球、腹半球和中带。两个半球的许多小眼，以及中带的所有小眼，都对空间中同一狭窄光带进行采样。形态上不同的中带区域的功能尚不清楚，但新证据表明，它可能以独特的方式适应颜色和偏振视觉。一系列类胡萝卜素滤色片筛选光色素，并可能为对比度增强视觉或真彩色视觉提供四色输入。这些滤色片是两排中带小眼的视杆内的有色液滴块（红色、橙色、黄色、紫色、粉色或蓝色）。另外两排中带小眼的分层微绒毛排列表明，它们提供了一种独特的偏振视觉形式。
