Readme file accompanying the archived data for the publication 
First record of the endoparasitic isopod Portunion maenadis (Giard, 6 1886) (Epicaridea: Entoniscidae) in shore crabs in the Wadden Sea 7 and a review of its distribution in Europe
Published in: Marine Biodiversity DOI: 10.1007/s12526-019-01012-3


Year: Year of sampling
Month: Month of sampling
Country: Country where samples were taken
Island: Island where samples were taken
Location: Name of the sampling location
Sex: Sex of the host, the shore crab Carcinus maenas
Carapace width (mm): Carapace width of the shore crab
Portunion: Indicates presence (yes) or absence (no) of the parasite Portunion maenadis


