Was The Octopus Paul?

In my April 27, 2012 post I talked about the English group Manfred Mann's 1968 song, Fox On The Run's references to Paul.  I found an October, 1966 Manfred Mann song that might have previewed Ringo Starr's 1969 song, Octopus's Garden.

At the beginning of the reversed song Semi-Detached Suburban Mr. James, you can hear the lead vocalist sing "you're an octopus" six times.  The song talks about a woman planning to marry a man and settle down to a routine English suburban life.

Ringo Starr's song was recorded in April and July, 1969 and released in September, 1969.  In it, he talks about an "octopus" living under the sea with lyrics very reminiscent of Paul's 1966 song, Yellow Submarine.

So in addition to the walrus being Paul, was the octopus Paul?