- a genus of tiny, freshwater crustaceans having a transparent body, used in biological research and as food for tropical fish.
Compare water flea.
Origin of Daphnia
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Examples from the Web for daphnia
Wolfgang Ostwald has produced experimentally, through variation of temperature, dimorphism of form in Daphnia.The Organism as a Whole</p>
Such small creatures as Daphnia pulex, Cyclops quadricornis and Rotifera should be introduced into ponds.
Both Daphnia and Cyclops are bred in stagnant water in which there should be a good stock of weeds.
Daphnia must be reared in a stagnant pond, the fresh-water shrimp (Gammarus pulex) in running water, with plenty of weeds.
Some of these belong to the genus Daphnia, and differ from the species found in other situations by their glassy transparency.The Life of Crustacea
William Thomas Calman
- any water flea of the genus Daphnia, having a rounded body enclosed in a transparent shell and bearing branched swimming antennae
C19: from New Latin, probably from Daphne
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