1 named feature carries the IAU descriptor Cavus — a hollow or irregular steep-sided depression on Europa, out of 30 in the mapped Solar System.
The IAU assigns each feature class on each world a naming theme. Across the 1 cavi with a recorded origin, one category covers them all, led by Celtic.
Every one has its own page, on the surface it sits on.
The same descriptor is used on 1 other world, for 29 more features.