Anderson R., Giusti F., Telfer M. G., Manganelli G., Pieńkowska J., A. L. 2018. Monacha ocellata (Roth, 1839) (Gastropoda: Hygromiidae), an addition to the fauna of Britain and Ireland, established in Essex. Journal of Conchology. 43(2): 201-11.

Anderson R., Giusti F., Telfer M. G., Manganelli G., Pieńkowska J., A. L. 2018. Monacha ocellata (Roth, 1839) (Gastropoda: Hygromiidae), an addition to the fauna of Britain and Ireland, established in Essex. Journal of Conchology. 43(2): 201-11.