I got all the information from Bulbapedia. If you see some of the same names it's because the pokémon has the same name in English as they do in Japanese.
#1 Bulbasaur/Fushgidane
#2 Ivysaur/Fushigisou
#3 Venusaur/Fushigibuma
#4 Charmander/Hitokage
#5 Charmeleon/Lizardo
#6 Charizard/Lizardon
#7 Squirtle/Zenigame
#8 Wartortle/Kameil
#9 Blastoise/Kamex
#10 Caterpie/Caterpie
#11 Metapod/Trancell
#12 Butterfree/Butterfree
]#13 Weedle/Beedle
#14 Kakuna/Cocoon
#15 Beedrill/Spear
#16 Pidgey/Poppo
#17 Pidgeotto/Pigeon
#18 Pidgeot/Pigeot
#19 Rattata/Koratta
#20 Raticate/Ratta
I wanted to put all 719, but it only allowed me to put 20 pictures, so I only put the first 20. I will continue later.
#1 Bulbasaur/Fushgidane
#2 Ivysaur/Fushigisou
#3 Venusaur/Fushigibuma
#4 Charmander/Hitokage
#5 Charmeleon/Lizardo
#6 Charizard/Lizardon
#7 Squirtle/Zenigame
#8 Wartortle/Kameil
#9 Blastoise/Kamex
#10 Caterpie/Caterpie
#11 Metapod/Trancell
#12 Butterfree/Butterfree
]#13 Weedle/Beedle
#14 Kakuna/Cocoon
#15 Beedrill/Spear
#16 Pidgey/Poppo
#17 Pidgeotto/Pigeon
#18 Pidgeot/Pigeot
#19 Rattata/Koratta
#20 Raticate/Ratta
I wanted to put all 719, but it only allowed me to put 20 pictures, so I only put the first 20. I will continue later.