Kaliwatan sa krustaseo ang Trichoniscoides modestus.^[1] Una ning gihulagway ni Emil Racoviţă ni adtong 1908. Ang Trichoniscoides modestus sakop sa kahenera nga Trichoniscoides, ug kabanay nga Trichoniscidae.^[1][2]

Kini nga matang hayop na sabwag sa:

• Espanya
• Pransiya

Ang kaliwatan gibahinbahin ngadto sa matang nga nahiubos:^[1]

• T. m. girondinensis
• T. m. modestus

1. ↑ ^{1.0 1.1 1.2} Roskov Y., Kunze T., Orrell T., Abucay L., Paglinawan L., Culham A., Bailly N., Kirk P., Bourgoin T., Baillargeon G., Decock W., De Wever A., Didžiulis V. (ed) (2019). "Species 2000 & ITIS Catalogue of Life: 2019 Annual Checklist". Species 2000: Naturalis, Leiden, the Netherlands. ISSN 2405-884X. TaxonID: 54336289. Retrieved 2019-11-11. {{cite web}}: |author= has generic name (help)CS1 maint: multiple names: authors list (link)
2. ↑ Boyko C.B, Bruce N.L., Hadfield K.A., Merrin K.L., Ota Y., Poore G.C.B., Taiti S., Schotte M. & Wilson G.D.F. (eds). (2019). WoRMS Isopoda: World Marine, Freshwater and Terrestrial Isopod Crustaceans database (version 2019-03-05). In: Species 2000 & ITIS Catalogue of Life, 2019 Annual Checklist (Roskov Y., Ower G., Orrell T., Nicolson D., Bailly N., Kirk P.M., Bourgoin T., DeWalt R.E., Decock W., Nieukerken E. van, Zarucchi J., Penev L., eds.). Digital resource at www.catalogueoflife.org/annual-checklist/2019. Species 2000: Naturalis, Leiden, the Netherlands. ISSN 2405-884X.