@article{oai:ir.soken.ac.jp:00003619,
 author = {蟻川, 謙太郎 and ARIKAWA, Kentaro and MIZUNO, Shin and SCHOLTEN, D. G W and KINOSHITA, Michiyo and SEKI, Takaharu and KITAMOTO, Junko and STAVENGA, Doekele G},
 issue = {1},
 journal = {Vision Research, Vision Research},
 month = {Jan},
 note = {The distal photoreceptors in the tiered retina of Papilio exhibit different spectral sensitivities. There are at least two types of short-wavelength sensitive receptors: an ultraviolet receptor with a normal spectral shape and a violet receptor with a very narrow spectral bandwidth. Furthermore, a blue receptor, a double-peaked green receptor and a single-peaked green receptor exist. The violet receptor and single-peaked green receptor are only found in ommatidia that fluoresce under ultraviolet illumination. About 28% of the ommatidia in the ventral half of the retina exhibit the UV-induced fluorescence. The fluorescence originates from an ultraviolet-absorbing pigment, located in the most distal 70 μm of the ommatidium, that acts as an absorption filter, both for a UV visual pigment, causing the narrow spectral sensitivity of the violet receptor, and for a green visual pigment, causing a single-peaked green receptor.},
 pages = {1--8},
 title = {An ultraviolet absorbing pigment causes a narrow-band violet receptor and a single-peaked green receptor in the eye of the butterfly Papilio},
 volume = {39},
 year = {1999}
}