Liam, whose non-Rotom Pokédex had been upgraded to have to Alolan Pokémon in it used it to get information on the stated. form.

"[i]Lycanroc, Dusk Form. The Wolf Pokémon and the evolved form of Rockruff. This is the form taken when Rockruff evolves at Dusk, and it is very rare. Bathed in the setting sun of evening, Lycanroc has undergone a special kind of evolution. An intense fighting spirit underlies its calmness.[/i]"
 "That is interesting." Liam said thinking aloud. He than agreed that they probably should get going to the hotel.