Soule, J. D.; Soule, D. F. (1969). Three new species of burrowing bryozoans (Ectoprocta) from the Hawaiian Islands. <em>Occasional Papers of the California Academy of Sciences.</em> 78: 1-9.[details]
Bock, P. (2024). World List of Bryozoa. Penetrantia operculata Soule & Soule, 1969. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=470693 on 2024-09-12
original descriptionSoule, J. D.; Soule, D. F. (1969). Three new species of burrowing bryozoans (Ectoprocta) from the Hawaiian Islands. <em>Occasional Papers of the California Academy of Sciences.</em> 78: 1-9.[details]
Present Present in aphia/obis/gbif/idigbio Inaccurate Introduced: alien Containing type locality