49 named features carry the IAU descriptor Linea — a long, dark or bright marking on Europa, out of 71 in the mapped Solar System.
The IAU assigns each feature class on each world a naming theme. Across the 49 lineae with a recorded origin, 5 categories appear, led by Greek.
Every one has its own page, on the surface it sits on.
The same descriptor is used on 1 other world, for 22 more features.