Kofoid & Campbell. (1929). A conspectus of the marine and freshwater ciliata belonging to the suborder Tintinnoinea, with descriptions of new species principally from the Agassiz Expedition to the Eastern Tropical Pacific 1904-1905. , available online athttp://aquaparadox.obs-vlfr.fr/html/PFD/Taxonomic%20Monographs/k&c1929.pdf[details] Available for editors
Xu, K.; Agatha, S. & Dolan, J. (2021). World Ciliophora Database. Ptychocylididae Kofoid & Campbell, 1929. Accessed through: Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2021) European Register of Marine Species at: http://www.marbef.org/data./aphia.php?p=taxdetails&id=196207 on 2023-06-07
Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2023). European Register of Marine Species. Ptychocylididae Kofoid & Campbell, 1929. Accessed at: http://www.marbef.org/data/aphia.php?p=taxdetails&id=196207 on 2023-06-07
original descriptionKofoid & Campbell. (1929). A conspectus of the marine and freshwater ciliata belonging to the suborder Tintinnoinea, with descriptions of new species principally from the Agassiz Expedition to the Eastern Tropical Pacific 1904-1905. , available online athttp://aquaparadox.obs-vlfr.fr/html/PFD/Taxonomic%20Monographs/k&c1929.pdf[details] Available for editors