Only in Ultra Sun & Ultra Moon
SOS Encounter: Route 11
Walk: Route 11 (10%)
Its base catch rate is 75 out of 255 (higher is easier); the catch rate calculator works out your odds with each ball. For the look, the best colour match is Love Ball, Heal Ball or Dream Ball.
Evolution: Morelull → Shiinotic (Level 24).
Shiinotic in every game · Pokémon Sun, Moon, Ultra Sun & Ultra Moon interactive map (Alola)