Water 3

Sea invertebrates: crabs like Krabby, jellyfish like Tentacool and starfish like Staryu. Six fossil lines live here too, Omanyte, Kabuto, Lileep, Anorith, Tirtouga and Archen, which account for twelve of its 16 Rock-type species.

The Water 3 egg group has 37 species, 19 of which belong to this group alone. The groups it shares the most species with are Water 1, with 12, and Bug, with 4. Between them they can breed with 280 different species, Ditto included. All of them can breed with Ditto, and for the 2 genderless ones it is the only possible partner.