Meet the Alolan version of these Pokemon.  They have settled onto the Alolan Islands and live there like Native Pokemon!

Name: Alolan Exeggutor
Type: Grass/Dragon
Unlike other Exeggutor, the Alolan Exeggutor has a fourth head—on its tail! This fourth head controls the tail independently and can take on opponents to the rear that can’t be reached by the main heads’ attacks.

Name: Alolan Vulpix
Type: Ice
It is said that Vulpix came to the Alola region together with humans, but the Fox Pokémon moved to the snowy mountain peaks to avoid the normal habitats of other Pokémon, and thus it ended up taking on this form.

Name: Alolan Ninetales
Type: Ice/Fairy
Alolan Ninetales is able to produce ice crystals from the fur that covers its body. It can use these ice crystals to block attacks, or it can form balls of ice, which it fires like bullets at opponents. These ice missiles have enough power to pulverize rock.

Name: Alolan Sandshrew
Type: Ice/Steel
Sandshrew have historically lived in desert areas, but the frequent eruptions of nearby volcanoes drove the them to abandon the desert and migrate to snowy mountains where they took on this form.

Name: Alolan Sandslash
Type: Ice/Steel
The Alolan Sandshrew of the snowy mountains evolve into Alolan Sandslash with spiny backs that are covered in ice. Alolan Sandslash hide themselves in the snow when strong enemies appear, leaving only their needles exposed and ready for business.

New Pokemon from Pokemon Sun and Moon

Name: Oricorio
Oricorio changes its form by sipping the nectar of certain flowers. Since it has four different forms—the same as the number of islands in Alola—it would seem that different Oricorio live on each of the islands.

Baile Style
Type: Fire/Flying
The Baile Style Oricorio is very passionate, and power fills its body when it dances. It sends downy fluff flying during its intense dances.

Pom-Pom Style
Type: Electric/Flying
The Pom-Pom Style Oricorio is very friendly toward people, and it uses dancing to encourage Trainers who are feeling glum. When it dances, its feathers are charged with static electricity.

Pa’u Style
Type: Psychic/Flying
The Pa’u Style Oricorio acts at its own pace, which sometimes makes it difficult to deal with. It sharpens its spirited moves through dance, which increases its psychic power.

Sensu Style
Type: Ghost/Flying
The Sensu Style Oricorio is quiet and collected. By means of its dance, it gathers the spirits drifting about in an area and borrows their power to fight.

Name: Minior
Type: Rock/Flying
Minior are formed in the stratosphere and live by absorbing the detritus around them. When they’ve consumed a large quantity of particles, their bodies become heavy, and they fall toward the planet’s surface. Minior has a hard and heavy outer shell with a core within.

Name: Gumshoos
Type: Normal
Gumshoos is the Evolution of Yungoos. It will call on Yungoos allies and stand in the way of trial-goers.

Name: Fomantis
Type: Grass
Fomantis is nocturnal, and it performs photosynthesis while it sleeps during the day by spreading out its leaves in all directions. Because of the danger of staying in the same location two days in a row, Fomantis begins its search for the next day’s spot as soon as the sun sets.

Name: Lurantis
Type: Grass
Lurantis draws opponents near to itself with its flowerlike appearance and aroma—and then it takes them down. It’s said to be the most gorgeous of all Grass-type Pokémon, due to its brilliant coloration and elegant moves.
Name: Mudbray
Type: Ground
Mudbray could once be found all over the world, but it   became endangered and is now a protected species. It’s said that the Alola region is the only place in the world where Mudbray can still be found in the wild.