Other invertebrates - LIFE IN FRESHWATER

Freshwater sponge
(phylum Porifera, family Spongillidae)

Hydra
(phylum Cnidaria, class Hydrozoa, genus Hydra)

Freshwater jellyfish or hydromedusae
(**phylum Cnidaria, class Hydrozoa, species Craspedacusta sowerbyi)**

Freshwater bryozoans or moss animals
(phylum Bryozoa, class Phylactolaemata)

Flatworms
(class Turbellaria, order Tricladida, family Dugesiidae)

Water mites
(class Arachnida, order Prostigmata, family Hydrachnidae)

Water spider or diving bell spider – Argyroneta aquatica
(class Arachnida, order Araneae, family Cybaeidae)

Freshwater ciliated protozoans
(phylum Ciliophora)

Aquatic oligochaete worms
(phylum Annelida, subclass Oligochaeta)