Route 10: 10 species in 1 game

Road 10: 10 species across 2 versions

X and Y

X and Y: 9 species
Species	Method	Levels	Chance	Game page
Eevee	Walking in tall grass or a cave	21	5%	All places
Eevee	Walking in yellow flowers	19 to 20	20%	All places
Yanma	Encountering 5 pokemon within grass, flowers, or within a cave	10	35%	All places
Snubbull	Walking in tall grass or a cave	21	10%	All places
Snubbull	Walking in yellow flowers	19 to 21	30%	All places
Houndour	Encountering 5 pokemon within grass, flowers, or within a cave	11	5%	All places
Houndour	Walking in tall grass or a cave	21	10%	All places
Houndour	Walking in yellow flowers	19 to 20	20%	All places
Nosepass	Encountering 5 pokemon within grass, flowers, or within a cave	10	60%	All places
Sigilyph	Walking in tall grass or a cave	19 to 20	20%	All places
Sigilyph	Walking in yellow flowers	21	10%	All places
Emolga	Walking in tall grass or a cave	19 to 20	5%	All places
Emolga	Walking in yellow flowers	19 to 20	5%	All places
Golett	Walking in tall grass or a cave	19 to 21	30%	All places
Golett	Walking in yellow flowers	21	10%	All places
Hawlucha	Walking in tall grass or a cave	19 to 20	20%	All places
Hawlucha	Walking in yellow flowers	21	5%	All places