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"Water Flea is a popular name for minute aquatic Crustaceans such as daphnia, cypris, and cyclops. In Cyclops the body is more distinctly segmented and the shell is not bivalve; the head bears antennæ, mandibles, and maxillæ, and the first five segments of the thorax bear swimming appendages. Water fleas fed on microscopic plants and animals and on organic debris, while they themselves– often occurring in countless swarms– form an important part of the food supply of certain fishes."—(Charles Leonard-Stuart, 1911)

Cyclops communis Water Flea

"Water Flea is a popular name for minute aquatic Crustaceans such as daphnia, cypris, and cyclops. In…