Description
provided by World Register of Marine Species
A distinctive, truly pelagic silvery blue mollusc, up to 6 cm long, with three pairs of arms. Floats upside-down just under the sea surface, feeding on the colonial hydroids Physalia, Porpita and Velella. Habitat: offshore. Distribution: pantropical. N.B. must be handled with care as it can give an extremely painful sting, due to the nematocysts taken from the prey species Physalia, which itself gives a nasty sting.
Drummond, R.B. (1981) Common Trees of the Central Watershed Woodlands of Zimbabwe. Natural Resources Board, Harare. Pages 168 - 169 (Includes a picture).
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