Use the links to navigate the hierarchy of invertebrate classification.
Phylum Annelida -- Wisconsin!
Phylum Bryozoa -- Wisconsin!
Phylum Mollusca -- Wisconsin!
Phylum Nemertea -- Wisconsin!
Phylum Entoprocta -- midwestern North America.
The Superphylum Lophotrochozoa has been reported (or is assumed) to occur in fresh waters. This taxon has been reported from Wisconsin.
(These statements were generated automatically from the WInvertebrates database.)