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WILLIAM MACNAE
almost as far as the landward fringe. Certainly they occur as far as
those parts of the mangal reached by all spring tides. But at these
upper levels they tend to be scarce, and seem to be restricted to lower
levels of the trees.
FIG. 49. Cwithidea decollata a t rest during low tide on a trunk of Avicennia marina, in
the avirennia parkland, Inhaca, April 1967.
WILLIAM MACNAE
almost as far as the landward fringe. Certainly they occur as far as
those parts of the mangal reached by all spring tides. But at these
upper levels they tend to be scarce, and seem to be restricted to lower
levels of the trees.
FIG. 49. Cwithidea decollata a t rest during low tide on a trunk of Avicennia marina, in
the avirennia parkland, Inhaca, April 1967.