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Fig. 4. Representative digital images of the hyaloid vessels on the vitrad surface
of the retina of two species of nototheniid fishes (+Hb). (A) Trematomus
hansoni; (B) Notothenia coriiceps. The cornea, iris, lens and
vitreous body were removed to allow viewing of the hyaloid vasculature, here
exemplifying an intermediate and a sparse radial pattern, respectively. Blood
vessels were traced using a digitizing tablet. Scale bars, 3 mm.