The Lumbriculidae are a family of microdrileoligochaetes common in freshwater environments, including streams, lakes, marshes, wells and groundwater. They should not be confused with the earthworm family Lumbricidae. Many species and genera are highly endemic, mainly in Siberia and the western parts of North America. Lumbriculidae are the only family in the order Lumbriculida.[1]
^Note that Lumbriculus lineatus and Lumbriculus codensis, which are sometime seen, both belong to the enchytraeid genus Lumbricillus. The old genus Thinodrilus is now considered to be a part of Lumbriculus, but may have subgeneric status. If so, it contains (at least) the species L. ambiguus, L. inconstans and L. genitosetosus. The status of many of the Lumbriculus species listed above is uncertain.
^Kaygorodova I.A.; Liventseva V.G. (2007). "A test of monophyly of the genus Rhynchelmis Hoffmeister, 1843 (Oligochaeta, Lumbriculidae): morphology based phylogeny". [Investigated in Russia. 139e: 1517–1527.
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