細眼sai3 ngaan5英文simple eye / ommatidium)係複眼(常見於昆蟲等嘅節肢動物)嘅基本組成部份。

「一隻複眼有幾多隻細眼」呢點就會隨物種而有異-澳洲東南蜻蜓Petalura gigantea)一隻複眼據講有 23,890 隻細眼,而且隻隻一樣咁大[1]

睇埋

編輯
  1. Pritchard, Gordon (1966). "On the morphology of the compound eyes of dragonflies (Odonata: Anisoptera), with special reference to their role in prey capture". Proceedings of the Royal Entomological Society of London. 41 (1-3): 1-8.