terminator: Aeria, Alba (Minami, Jan 8 onwards), Chryse--Xanthe, Elysium, Hellas (vw), Isidis Regio--Libya, Nix Olympica (Parker, Jan 28 onwards (Figure 8)) and Tharsis Montes (Parker, Jan 31 (Arsia Mons, Ascraeus Mons and Pavonis Mons; also see Figure 8) and Tharsis.
mid-disk: Chryse (sw, forming part of the ECB on mid-disk), Hellas (vw) and Nix Olympica (Parker, Jan 31), Elysium was again dull.
terminator: Aeria, Alba, Arabia (sw), Argyre, Candor-Ophir, Cebrenia, Chryse-Xanthe, Eden (sw), Elysium, Hellas (vw), Isidis Regio-Libya, Nix Olympica, Tharsis Montes and Tharsis.
I did a novel a few years ago, "Mars Underground," in which I described a Martian base with a bar called Nix Olympica
Bar (after the old name for the largest volcano in the solar system on Mars).
6-inch Merz refractor of the Brera Observatory in Milan, in November 1879 he made out a tiny white spot "as bright as the polar snow" that he christened Nix Olympica ("Snow of Olympus"), after the mountain abode of the gods in Greek mythology.
Schiaparelli's Nix Olympica is the canopy of cloud that often shrouds Olympus Mons.