Board Thread:General Discussion/@comment-13237238-20140101101941

I'm a bit confused regarding Unohana's zanpakutou. It says on here that the large one eyed manta ray like creature is her shikai, but I always thought that was just the physical form of her manifested Zanpakutou spirit and that we still hadn't seen her shikai at all. Has it been stated anywhere that the manta ray like creature is in fact her shikai? I just thought it was a bit strange as shikai usually resemble the forms of various weapons 