#032 Nidoran Male
Evolution: No. 033 Nidorino (Lv. 16), No. 034 Nidoking (Moon Stone)
Type: Poison
Appearance: Route 22 and Safari Zone
Description: Stiffens its ears to sense danger. The larger its horns, the more powerful its secreted venom.
#033 Nidorino
Evolution: No. 034 Nidoking (Moon Stone)
Type: Poison
Appearance: Safari Zone (Both Versions) and Coin Exchange (Blue Version Only)
Description: An aggressive Pokémon that is quick to attack. The horn on its head secretes a powerful venom.
#034 Nidoking
Evolution: Final Stage
Type: Poison/Ground
Appearance: ---
Description: It uses its powerful tail in battle to smash, contrict, then break its prey's bones.
#035 Clefairy
Evolution: No. 036 Clefable (Moon Stone)
Type: Normal
Appearance: Mt. Moon, Coin Exchange
Description: Its cute magical appeal brings it many admirers. The Clefairy is rare and found only in certain areas.
#036 Clefable
Evolution: Final Stage
Type: Normal
Appearance: ---
Description: A timid fairy Pokémon that is rarely seen, the Clefable runs and hides the moment it senses people.
#037 Vulpix
Evolution: No. 038 Ninetales (Fire Stone)
Type: Flame
Appearance: Routes 7 and 8 and Pokémon House (Cinnabar Island) (Blue Version Only)
Description: At the time of birth it has just one tail, but it splits from the tip as it grows older.
#038 Ninetales
Evolution: Final Stage
Type: Flame
Appearance: ---
Description: Very smart and very vengeful. Grabbing one of the Ninetales' many tails could result in a 1,000-year curse.
#039 Jigglypuff
Evolution: No. 040 Wigglytuff (Moon Stone)
Type: Normal
Appearance: Route 3
Description: When its huge eyes light up, the Jigglypuff sings a mysteriously soothing melody that lulls its enemies to sleep.
#040 Wigglytuff
Evolution: Final Stage
Type: Normal
Appearance: Unknown Dungeon
Description: The Wigglytuff's body is soft and rubbery. When angry, it wil suck in air and inflate itself to an enormous size.
#041 Zubat
Evolution: No. 042 Golbat (Lv. 22)
Type: Poison/Flying
Appearance: Mt. Moon, Rock Tunnel, Seafoam Islands, and Victory Road
Description: Forms colonies in perpetually dark places and uses ultrasonic waves to identify and approach targets.
#042 Golbat
Evolution: Final Stage
Type: Poison/Flying
Appearance: Seafoam Islands, Victory Road, and Unknown Dungeon
Description: Once it strikes, it won't stop draining energy from the victim even if it gets too heavy to fly.
#043 Oddish
Evolution: No. 044 Gloom (Lv. 21), No. 045 Vileplume (Leaf Stone)
Type: Grass/Poison
Appearance: Routes 5, 6, 7, 12, 13, 14, 15, 24, and 25
Description: During the day, it keeps its face buried in the ground. At night, it wanders around sowing its seeds.
#044 Gloom
Evolution: No. 045 Vileplume (Leaf Stone)
Type: Grass/Poison
Appearance: Routes 12, 13, 14, and 15
Description: The fluid that oozes from its mouth isn't saliva, it is a nectar that is used to attract prey.
#045 Vileplume
Evolution: Final Stage
Type: Grass/Poison
Appearance: ---
Description: The larger its petals, the more toxic pollen it contains. Its big head is heavy and hard to hold up.
#046 Paras
Evolution: No. 047 Parasect (Lv. 24)
Type: Bug/Grass
Appearance: Mt. Moon and Safari Zone
Description: Burrows to suck tree roots. The mushrooms on its back grow by drawing nutrients from the bug host.
#047 Parasect
Evolution: Final Stage
Type: Bug/Grass
Appearance: Safari Zone and Unknown Dungeon
Description: A host-parasite pair in which the parasite mushroom has taken over the host bug. Prefers damp places.
#048 Venonat
Evolution: No. 049 Venomoth (Lv. 31)
Type: Bug/Poison
Appearance: Routes 12, 13, 14, and 15 and Safari Zone
Description: Lives in the shadows of tall trees, where it eats small insects. It is attracted by light at night.
#049 Venomoth
Evolution: Final Stage
Type: Bug/Poison
Appearance: Safari Zone, Victory Road, and Unknown Dungeon
Description: The dust-like scales covering its wings are color coded to indicate the kinds of poison it has.
#050 Diglett
Evolution: No. 051 Dugtrio (Lv. 26)
Type: Ground
Appearance: Diglett's Cave
Description: Lives about three feet underground, where it feeds on plant roots. It sometimes appears above ground.
#051 Dugtrio
Evolution: Final Stage
Type: Ground
Appearance: Diglett's Cave
Description: A team of Diglett triplets, it triggers huge earthquakes by burrowing 60 miles underground.
#052 Meowth
Evolution: No. 053 Persian (Lv. 28)
Type: Normal
Appearance: Routes 5, 6, 7, and 8 (Blue Version Only)
Description: Adores circular objects. Wanders the streets at night to look for dropped change.
Note: Oh no! Run for your lives, everybody! It's my evil sidekick, Bob! (---chuckle---)
#053 Persian
Evolution: Final Stage
Type: Normal
Appearance: ---
Description: Although its fur has many admirers, it is tough to raise as a pet because of its fickle meanness.
#054 Psyduck
Evolution: No. 055 Golduck (Lv. 33)
Type: Water
Appearance: Routes 4, 24, and 25; Celadon City, Fuchsia City, Seafoam Islands, and Safari Zone (by fishing)
Description: While lulling its enemies with its vacant look, this wily Pokémon will use psychokinetic powers.
#055 Golduck
Evolution: Final Stage
Type: Water
Appearance: Routes 4, 24, and 25; Celadon City, Fuchsia City, and Seafoam Islands (by fishing)
Description: Often seen swimming elegantly by lake shores, it is often mistaken for the Japanese monster, Kappa.
#056 Mankey
Evolution: No. 057 Primeape (Lv. 28)
Type: Fighting
Appearance: Routes 5, 6, 7, and 8 (Red Version Only)
Description: Extremely quick to anger, it can be docile one moment, then angry the next.
#057 Primeape
Evolution: Final Stage
Type: Fighting
Appearance: ---
Description: Always furious and tenacious to boot, it won't abandon a chase until it catches its quarry.
#058 Growlithe
Evolution: No. 059 Arcanine
Type: Flame
Appearance: Routes 7 and 8, and Pokémon House (Red Version Only)
Description: Very protective of its territory, the Growlithe will bark and bite to repel intruders from its space.
#059 Arcanine
Evolution: Final Stage
Type: Flame
Appearance: ---
Description: A Pokémon that has been admired since the past for its beauty. It runs agilely as if on wings.
#060 Poliwag
Evolution: No. 061 Poliwhirl (Lv. 25), No. 062 Poliwrath (Water Stone)
Type: Water
Appearance: Viridian City and Route 22 (by fishing)
Description: Its newly grown legs prevent it from running (I'm confused). It prefers swimming to standing.