Daphnia pulex DeGeer, 1778. OTHER COMMON NAMES
French: Puce d'eau commune; German: Wasserfloh. PHYSICAL CHARACTERISTICS
D. pulex is a small laterally-flattened cladoceran. The body is covered by a carapace, but the head, large compound eye, and antennae remain open to view. The common water flea has two pairs of antennae and five pairs of leaf-like limbs on its body. The spine is located at the posterior end of the carapace. Individuals typically range in size from 0.008-0.1 in (0.2-3 mm).
Was this article helpful?