Definitions for "Caenorhabditis"
elegans: Nematode much used in lineage studies since the number of nuclei is determined and the nervous system is relatively simple. The organism can be maintained axenically and there are mutants in behaviour, in muscle proteins and in other features.
This genus contains the noted model organism Caenorhabditis elegans and several other species for which a genome sequence is available for, or which is currently being determined.