35 named features carry the IAU descriptor Sulcus — a set of parallel grooves and ridges on Ganymede, out of 70 in the mapped Solar System.
The IAU assigns each feature class on each world a naming theme. Across the 35 sulci with a recorded origin, 8 categories appear, led by Assyro-Babylonian.
Every one has its own page, on the surface it sits on.
The same descriptor is used on 3 other worlds, for 35 more features.