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Folks: An interesting question was recently asked me by a student: some
fish have large 'eye spots' on their tails (e.g., bowfin, some reef fishes,
red drum, oscars) - how common is the caudal fin eye spot (i.e., what other
species exhibit this), and in what species does the size/color/presence of
the eye spot differ among individuals (between the sexes, between the
sizes/ages, as a function of season, with dominance/subordinance)? A good
question, for which I don't have a ready answer. Your thoughts? Doug
Noltie, U. Missouri.
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