Nannothrissa is a genus of very small fish in the herring family, Clupeidae, endemic to the Congo River system in Africa. There are currently only two recognized species
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