Kaliwatan sa banaog ang Phakellia izuensis^[1]. Una ning gihulagway ni Tanita ug Hoshino ni adtong 1989.^[2] Ang Phakellia izuensis sakop sa kahenera nga Phakellia, ug kabanay nga Axinellidae.^[1][3]

Kini nga matang hayop na sabwag sa:

• Exclusive Economic Zone sa Hapon
• Hapon
• East China Sea

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: 53396070. Retrieved 2019-11-11. {{cite web}}: |author= has generic name (help)CS1 maint: multiple names: authors list (link)
2. ↑ Japan Agency for Marine-Earth Science and Technology (2009 onwards) Biological Information System for Marine Life (BISMaL) ,
3. ↑ Van Soest R.W.M, Boury-Esnault N., Hooper J.N.A., Rützler K., de Voogd N.J., Alvarez B., Hajdu E., Pisera A.B., Manconi R., Schönberg C., Klautau M., Picton B., Kelly M., Vacelet J., Dohrmann M., Díaz M.-C., Cárdenas P., Carballo J. L., Ríos P. & Downey R. (2019). WoRMS Porifera: World Porifera 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.