THE XERCES SOCIETY FOR INVERTEBRATE CONSERVATION Aquatic Invertebrates in Pacific Northwest Freshwater Wetlands |
Home Intro to ID taxaIdentify taxa |
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Jointed legs that are usually hardened. Includes most insects, crustaceans and mites. |
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Soft bodied, often worm-like, sometimes with fleshy legs or suckers. Includes immature flies, worms, nematodes, nemerteans, leeches, flatworms, hydra, sponges and moss animals. |      |
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One or two hard shells protecting a soft and fleshy body (Mollusca) |
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| Sessile (not free-moving) (Porifera - sponges) familiar sponge-like "colony" made up of many specialized cells; lack tentacles or other structures; range in appearance from large blanket crusts to finger-like projections; may see fuzzy-looking nodules in a sample |
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F.Y.I. |
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(for the curious) |
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Invertebrate taxa not commonly found in freshwater wetlandsOrganisms typical of faster moving waters or other aquatic habitats. |
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Incidental adultsTerrestrial adult forms of aquatic larvae, and insects that are entirely terrestrial. |
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