Bock, P. (2025). World List of Bryozoa. Virgocella esperi (von Hagenow, 1839) †. Accessed through: Marine Species Traits editorial board (2025) Marine Species Traits at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1414351 on 2026-04-16
Marine Species Traits editorial board (2026). Marine Species Traits. Virgocella esperi (von Hagenow, 1839) †. Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1414351 on 2026-04-16