Eggs are fusiform, about 300 μm long, with a smooth surface and are operculated.
Theunissen Maxine, Tiedt Louwrens, Du Preez Louis H. 2014, 'The morphology and attachment of Protopolystoma xenopodis (Monogenea: Polystomatidae)infecting the African clawed frog Xenopus laevis', Parasitehttp://dx.doi.org/10.1051/parasite/2014020. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The operculated cells and the interlocking disks are taxonomically important features.
Mayra Montiel, Ethel Sánchez 2006, 'Ultraestructura de bambúes del género Dendrocalamus (Poaceae: Bambusoideae) cultivadosen Costa Rica I: Dendrocalamus latiflorus', Revista de Biología Tropicalhttp://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0034-77442006000500008. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)