Eudactylina corrugata

Eudactylina corrugata is a species of parasitic copepod found on the little skate ("Leucoraja erinacea") and the thorny skate ("Amblyraja radiata") that is only known from St. Andrews, New Brunswick and Woods Hole, Massachusetts.
"Eudactylina corrugata" is only known from females. They are approximately long, and attach themselves to the secondary lamellae of the gills of their hosts using their chelate (clawed) maxillipeds. The species was described in 1930 by Ruby Bere.