Use the links to navigate the hierarchy of invertebrate classification.
Order Sabellida -- midwestern North America.
Order Spionida -- North America.
Order Terebellida -- North America.
The Infraclass Canalipalpata has been reported (or is assumed) to occur in fresh waters. This taxon has been reported from midwestern states of North America.
(These statements were generated automatically from the WInvertebrates database.)