New Latin Daphniagenus namefrom Greek DaphnēDaphne
i., 1902); he has obtained a fairly concordant result for the broods of parthenogenetic Daphnia (Proc. Roy.
Of the seven genera, the cosmopolitan Daphnia contains about 100 species and varieties, of which Thomas Scott (1899) observes that " scarcely any of the several characters that have at one time or another been selected as affording a means for discriminating between the different forms can be relied on as satisfactory."
Daphnia are found in large numbers sheltering under floating aquatics such as water-lilies.
These can be easily raised in newly hatched brine shrimp, powdered flake, and small daphnia and other pond foods.