''Otostrongylus'' is a
monotypic genus
In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispe ...
of
nematodes
The nematodes ( or ; ; ), roundworms or eelworms constitute the phylum Nematoda. Species in the phylum inhabit a broad range of environments. Most species are free-living, feeding on microorganisms, but many are parasitic. Parasitic worms (he ...
belonging to the family
Crenosomatidae. The only species is ''Otostrongylus circumlitus''.
The species is found in Europe and Northern America.
References
{{Taxonbar, from=Q18606871
Rhabditida
Rhabditida genera
Monotypic nematode genera