As some of you know there are seven Shichibukai so i looked up the remaining shibukai on wilklepida
Here are the Shichibukai you have seen
-Sir Crocodile (81 million Belli)
-Bartholomew Kuma (296 Million Belli)
-Donquixote Doflamingo(340 Million Belli)
-Dracule "Hawkeye" Mihawk(unknown)
Here are the ones we haven't seen physically yet
The Arlong Pirates used to be part of Jimbei's crew, but the two groups seperated 8 years before current storyline. While Jimbei remained in the Grand Line, Arlong travelled to the East Blue to conquer it. Although Arlong was referred to as Jimbei's equal, the odds of one of the Shichibukai being equal to a pirate with a bounty of 20,000,000 belli is very unlikely. It is therefore speculated that Arlong was Jimbei's equal before he left or that it refers to rank as based on his growing up with Jimbei on Fishman Island and not on actual strength. He is speculated to be a Whale Shark fishman, as 甚平鮫 jinbei-zame means "whale shark" in Japanese.
Gecko Moria (Doctor hoeback?????)
- Former Bounty: Unknown, but stated as higher than Luffy's
- Seiyū: ?
- Voice Actor: ?
Gecko is a member who currently resides on the floating island, Thriller Bark. He is the one who stole Brook's, and various other beings' shadows, and seems to be somehow connected to the ghosts on Thriller Bark. The loss of a being's shadow causes them to be vaporized if they come in contact with sunlight. According to Robin, his former bounty was higher than Luffy's 300 million bounty.
as for the 7th Shichibukai…we still don't know who he is
Gosh wasn't this educational heheh ^_^