Oligosoma is a genus of small to medium-sized skinks (family Scincidae) found only in New Zealand as well as Norfolk and Lord Howe islands. Oligosoma belongs to the Eugongylus group of genera in the subfamily Lygosominae; the genus Bassiana appears to be fairly closely related.
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0