Invertebrates - Freshwater    Home
Water mite (Hydrachna). Freshwater Shrimp (Gammarus pulex) juvenile. Freshwater Shrimp (Gammarus pulex) female with young emerging from pouch. Freshwater Shrimp (Gammarus pulex) female with young emerging from pouch. Fairy Shrimps (Branchinecta species). Tadpole Shrimp (Triops longicaudatus) sloughed skin. Tadpole Shrimp (Triops longicaudatus) immature. Tadpole Shrimps or Apus (Triops longicaudatus). Tadpole Shrimp (Triops longicaudatus) immature. Crayfish (Cherax quinquecarinatus). Water Flea (Daphnia) with winter eggs. Freshwater Isopod or Slater (Asellus species). Freshwater Harpacticoid copepods, male holding egg-carrying female. Water Fleas (Daphnia magna) in a water drop, held by a grass flower. Water Flea (Daphnia) in a water drop held by a grass head. Common Hydra (Hydra vulgaris) capturing a water flea. Water Flea (Daphnia magna). Water Fleas (Daphnia magna). Lesser Bladderwort (Utricularia minor) bladder with Daphnia, trapped by its antenna. Freshwater copepod (Cyclops) female with eggs. Freshwater copepods (Diaptomus). Ramshorn Snail (Planorbis species) very young specimens. Freshwater worm (Dero). Flatworm (Dendrocoelum lacteum) with newly laid egg capsule. Flatworm (Dendrocoelum lacteum) with newly laid cocoon. The head of a Leech (Pisciola sp) showing its eyes. Freshwater worm (Stylaria sp) and young worms. Leech (Herpobdella sp) showing internal structures. Group of freshwater Flatworms (Dugesia tigrina). Freshwater worm (Tubifex). Worldwide Horse Leeches (Haemopis sanguisuga) attached to glass by their suckers. Horse Leeches (Haemopis sanguisuga) attached to glass by their suckers. Freshwater worm (Chaetogaster) showing recently ingested Volvox colony. Young Tubifex Worms. Filamentous green algae (Spirogyra sp) showing cell structure. Floating colonies of Stentor (ciliate protozoa) with gas bubbles used to lift colonies. Green Hydra (Hydra viridis) walking. Composite showing five stages. Rotifer (Brachionus sp) in pond water. Common Hydra (Hydra vulgaris) showing bud starting to grow. Green Hydra (Hydra viridis) budding. Protozoan Stentor floating colony of two species. Volvox colonies photographed at 40x magnification. Volvox colonies photographed at 15x magnification.