(ofApoprionospio dayi Foster, 1969)Foster, N.M. (1969). New species of spionids (Polychaeta) from the Gulf of Mexico and Caribbean Sea with a partial revision of the genus <i>Prionospio</i>. <em>Proceedings of the Biological Society of Washington.</em> 82(38): 381-400., available online athttps://www.biodiversitylibrary.org/page/34595410 page(s): 383-388, figs. 1-11 [details]
Read, G.; Fauchald, K. (Ed.) (2025). World Polychaeta Database. Prionospio dayi (Foster, 1969). Accessed at: https://www.marinespecies.org/polychaeta/aphia.php?p=taxdetails&id=558834 on 2025-05-21
original description(ofApoprionospio dayi Foster, 1969)Foster, N.M. (1969). New species of spionids (Polychaeta) from the Gulf of Mexico and Caribbean Sea with a partial revision of the genus <i>Prionospio</i>. <em>Proceedings of the Biological Society of Washington.</em> 82(38): 381-400., available online athttps://www.biodiversitylibrary.org/page/34595410 page(s): 383-388, figs. 1-11 [details]
status sourceSigvaldadóttir, E. (1998). Cladistic analysis and classification of <i>Prionospio</i> and related general (Polychaeta, Spionidae). <em>Zoologica Scripta.</em> 27(3): 175-187., available online athttp://dx.doi.org/10.1111/j.1463-6409.1998.tb00435.x[details]
Present Inaccurate Introduced: alien Containing type locality