eyespot

n.

眼点（退化的单眼），（藻的）眼点，眼状斑纹；

1. The second eyespot cell, the pigment cell, confers the directional sensitivity to light.
   第二个眼点细胞，也就是色素细胞，使生物可以感觉到光的方向。

The Eyespot - The Fine Structure of Algal Cells - 6
Pattern formation and eyespot determination in butterfly wings
Pattern formation and eyespot determination in butterfly wings.
Does predation maintain eyespot plasticity in Bicyclus anynana?
Development, plasticity and evolution of butterfly eyespot patterns
The generation and diversification of butterfly eyespot color patterns
Pattern formation on lepidopteran wings: determination of an eyespot
Recruitment of a Hedgehog Regulatory Circuit in Butterfly Eyespot Evolution
Development and use of a PCR assay to detect Rhizoctonia cerealis, the cause of sharp eyespot in wheat
Female Bicyclus anynana butterflies choose males on the basis of their dorsal UV-reflective eyespot pupils