Below are the Pokémon that are in the Water 3 Egg Group. Click them to go to their Pokédex page

No.	Pic	Name	Type	Abilities	Base Stats						Other Egg Groups
					HP	Att	Def	S.Att	S.Def	Spd
#072		Tentacool		Clear Body Liquid Ooze Rain Dish	40	40	35	50	100	70	No Other Egg Groups
#073		Tentacruel		Clear Body Liquid Ooze Rain Dish	80	70	65	80	120	100	No Other Egg Groups
#090		Shellder		Shell Armor Skill Link Overcoat	30	65	100	45	25	40	No Other Egg Groups
#091		Cloyster		Shell Armor Skill Link Overcoat	50	95	180	85	45	70	No Other Egg Groups
#098		Krabby		Hyper Cutter Shell Armor Sheer Force	30	105	90	25	25	50	No Other Egg Groups
#099		Kingler		Hyper Cutter Shell Armor Sheer Force	55	130	115	50	50	75	No Other Egg Groups
#120		Staryu		Illuminate Natural Cure Analytic	30	45	55	70	55	85	No Other Egg Groups
#121		Starmie		Illuminate Natural Cure Analytic	60	75	85	100	85	115	No Other Egg Groups
#138		Omanyte		Swift Swim Shell Armor Weak Armor	35	40	100	90	55	35	Water 1
#139		Omastar		Swift Swim Shell Armor Weak Armor	70	60	125	115	70	55	Water 1
#140		Kabuto		Swift Swim Battle Armor Weak Armor	30	80	90	55	45	55	Water 1
#141		Kabutops		Swift Swim Battle Armor Weak Armor	60	115	105	65	70	80	Water 1
#222		Corsola		Hustle Natural Cure Regenerator	65	55	95	65	95	35	Water 1
#341		Corphish		Hyper Cutter Shell Armor Adaptability	43	80	65	50	35	35	Water 1
#342		Crawdaunt		Hyper Cutter Shell Armor Adaptability	63	120	85	90	55	55	Water 1
#345		Lileep		Suction Cups Storm Drain	66	41	77	61	87	23	No Other Egg Groups
#346		Cradily		Suction Cups Storm Drain	86	81	97	81	107	43	No Other Egg Groups
#347		Anorith		Battle Armor Swift Swim	45	95	50	40	50	75	No Other Egg Groups
#348		Armaldo		Battle Armor Swift Swim	75	125	100	70	80	45	No Other Egg Groups
#451		Skorupi		Battle Armor Sniper Keen Eye	40	50	90	30	55	65	Bug
#452		Drapion		Battle Armor Sniper Keen Eye	70	90	110	60	75	95	Bug
#564		Tirtouga		Solid Rock Sturdy Swift Swim	54	78	103	53	45	22	Water 1
#565		Carracosta		Solid Rock Sturdy Swift Swim	74	108	133	83	65	32	Water 1
#566		Archen		Defeatist	55	112	45	74	45	70	Flying
#567		Archeops		Defeatist	75	140	65	112	65	110	Flying
#688		Binacle		Tough Claws Sniper Pickpocket	42	52	67	39	56	50	No Other Egg Groups
#689		Barbaracle		Tough Claws Sniper Pickpocket	72	105	115	54	86	68	No Other Egg Groups
#692		Clauncher		Mega Launcher	50	53	62	58	63	44	Water 1
#693		Clawitzer		Mega Launcher	71	73	88	120	89	59	Water 1
#767		Wimpod		Wimp Out	25	35	40	20	30	80	Bug
#768		Golisopod		Emergency Exit	75	125	140	60	90	40	Bug
#864		Cursola		Weak Armor Perish Body	60	95	50	145	130	30	Water 1