Use the links to navigate the hierarchy of invertebrate classification.
Family Cambarincolidae -- midwestern North America.
Family Bdellodrilidae -- North America.
Family Branchiobdellidae -- North America.
Family Xironodrilidae -- North America.
The Order Branchiobdellida 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.)