Kaliwatan sa muragwati ang Phallodrilus parthenopaeus^[1]. Una ning gihulagway ni Pierantoni ni adtong 1902.^[2] Ang Phallodrilus parthenopaeus sakop sa kahenera nga Phallodrilus, ug kabanay nga Naididae.^[1][3]

Kini nga matang hayop na sabwag sa:

• Inner Seas off the West Coast of Scotland
• kasadpang Dagat Mediteraneo
• Celtic Sea
• Dagat Amihanan
• amihanang Kadagatang Atlantiko
• Tyrrhenian Sea
• Exclusive Economic Zone sa Olanda
• Exclusive Economic Zone sa Italya
• Exclusive Economic Zone sa Suwesya
• Exclusive Economic Zone sa Hiniusang Gingharian
• Dagat Mediteraneo
• Irish Exclusive economic Zone

Walay nalista nga matang nga sama niini.^[1]

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: 54346134. Retrieved 2019-11-11. {{cite web}}: |author= has generic name (help)CS1 maint: multiple names: authors list (link)
2. ↑ van Haaren, T. (2016) Oligochaeten van brakke en zoute wateren in Nederland (Annelida:Oligochaeta) , Nederlandse Faunistische Mededelingen. 46:115-164
3. ↑ Timm T. & Erséus C. (2019). WoRMS Oligochaeta: World List of Marine Oligochaeta (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.