There are a total of 21 Pokémon in this egg group.
- 12 are purely in this egg group.
- 9 are partly in this egg group.
Contents |
Characteristics 
Edit
Most Pokémon in this egg group are water-types that are based on invertibretes
Pokémon Edit
Purely Edit
| # | Pokémon | Type |
|---|---|---|
| #072 | Tentacool | Water/Poison |
| #073 | Tentacruel | Water/Poison |
| #090 | Shellder | Water |
| #091 | Cloyster | Water/Ice |
| #098 | Krabby | Water |
| #099 | Kingler | Water |
| #120 | Staryu | Water |
| #121 | Starmie | Water/Psychic |
| #345 | Lileep | Rock/Grass |
| #346 | Cradily | Rock/Grass |
| #347 | Anorith | Rock/Bug |
| #348 | Armaldo | Rock/Bug |
Partly Edit
| # | Pokémon | Type | Other group |
|---|---|---|---|
| #138 | Omanyte | Rock/Water | Water 1 |
| #139 | Omastar | Rock/Water | Water 1 |
| #140 | Kabuto | Rock/Water | Water 1 |
| #141 | Kabutops | Rock/Water | Water 1 |
| #222 | Corsola | Water/Rock | Water 1 |
| #341 | Corphish | Water | Water 1 |
| #342 | Crawdaunt | Water/Dark | Water 1 |
| #451 | Skorupi | Poison/Bug | Bug |
| #452 | Drapion | Poison/Dark | Bug |
Trivia Edit
- Despite Skorupi and Drapion not being water-types or related to water in any way, they are still part of this egg group. It is possible the Skorupi and Drapion are based on ancient sea scorpions.