… 1) The circadian system of the scorpion is a bilaterally symmetrical unit, and has never … and
right sides (Fleissner 1977) such as has been noted in beetles (K6hler and Fleissner 1978). 2…

… Fleissner summarizes our knowledge on the circadian clock controlling the sensitivity of
the eyes in the fat-tailed scorpion Androctonus australis (Buthidae, Scorpiones) …

… Circadian sensitivity changes (up to 4 log units) were observed in the median eyes of the
scorpion, … The phase position of this circadian periodicity can be synchronized exogenously by I …

The central origin of efferent neurosecretory fibers (ENSF) supplying the median eyes of the
scorpion, Androctonus australis, with circadian information was investigated at the light- and …

… circadian system of one animal, the African fat-tailed scorpion, … The circadian timing of
scorpions, nocturnal arachnids, is … in light intensity, scorpions actively control their exposure to and …

… , Androctonus australis, migrates periodically in a circadian rhythm thus … this circadian
pigment migration is controlled via the optic nerve by efferent signals (Fleissner and Fleissner, …

… The circadian rhythm of sensitivity in the median eyes ofAndroctonus australis L. can be …
The relatively less marked circadian rhythm of lateral-eye sensitivity is probably controlled …

… Under constant conditions, the scorpion exhibits a circadian … scorpion's "subjective
night", "circadian night" or "night-state", the phase of low sensitivity as "subjective day", "circadian …

… Neurobiological studies on the photoreceptor system of scorpions have lead to a … Scorpion
eyes are controlled by the circadian clock and have a strong circadian sensitivity rhythm …

… scorpion median and/lateral eyes: Fleissner and Schliwa, 1977b; and their role as circadian
signalling pathways: Fleissner and Fleissner … retinal rhythm, the circadian oscillator was not …