title: Circadian oscillation of sensitivity of spider eyes: diurnal and nocturnal spiders.
abstract: The circadian oscillation of sensitivity of the anterior median eye of a nocturnal spider Araneus ventricosus and that of a diurnal spider Menemerus confusus were examined by recording electroretinograms. The anterior median eye of Araneus ventricosus showed a marked circadian oscillation of sensitivity, but that of Menemerus confusus showed no circadian oscillation.
authors.affiliation: Biological Laboratory, Kyushu Institute of Design, Shiobaru, Fukuoka 815-8540, Japan. shigeki@kyushu-id.ac.jp
authors.initials: S
authors.lastname: Yamashita
authors.initials: T
authors.lastname: Nakamura