>>50068771The pre gen 5 lines that should be considered native are Caterpie, Weedle, Rattata*, Spearow, Zubat, Ponyta, Vulpix, Growlithe*, Poliwag, Horsea, Psyduck, Shellder, Slowpoke, Seel, Krabby, Staryu, Geodude, Magnemite*, Koffing*, Grimer*, Goldeen, Onix, Cubone, Tangela, Lickitung, Kangaskhan, Pinsir, Ditto, Eevee*, Hoothoot, Mareep*, Cleffa, Igglybuff, Sunkern, Dunsparce, Heracross, Remoraid, Corsola, Shuckle, Qwilfish, Murkrow, Misdreavus, Stantler, Skarmory, Gligar, Delibird, Swinub, Sneasel, Smoochum, Elekid*, Magby*, Larvitar, Taillow, Wingull, Skitty*, Sabeleye, Mawile, Aron, Nosepass, Swablu, Barboach, Zangoose, Seviper, Lunatone, Solrock, Azurill, Numel, Spoink, Trapinch, Feebas, Tropius, Absol, Shuppet, Wailmer, Spheal, Clamperl, Relicanth, Luvdisc, Beldum, Budew, Drifloon, Buizel, Combee, Buneary*, Cherubi, Chingling, Bronzor, Mantyke, Finneon, Skorupi
The astricked ones are near/in residential areas so they might not be, everything else is either definitely native or are pretty likely to be native. Feel free to argue but you're probably wrong
