Tuning: Standard
I hadn't found the chords anywhere before and decided to figure it out.
Surprisingly easy for such a masterpiece of a song.
  ---Chords---
 Em      022000
 G       320033
 Cmaj7   x32000   //Cmaj7 can easily be livened up by tossing your pinky onto the 
third fret of the high E string
 D       xx0232
Good luck! If you have any questions about it, email me. I'd be glad to respond.
Here goes!
  Em
I see a sea anemone
    G
The enemy
          Cmaj7
See a sea anemone
And that'll be the end of me.
          Em                               G                   Cmaj7
While the vicious fish was caught unawares in the tenderest of tendrils
Underneath her tender gills
Em                 G
I will become this animal
Cmaj7
Perfectly adapted to the music halls
Em                 G
I will become this animal
Cmaj7
Anomalous appendages
A non-animal
G
Hold on just a second
      D
Don't tell me this one you know
  Cmaj7
I know this one I know this song     //This section here is very strange, as far as timing goes.
                                     //You'll want to come in right on the word "tell" for the D
I know this one I love this song     //and right on the word "know" for the 
                                       Cmaj7.  It feels weird at first,
                                     //but once you get it, it'll flow pretty nicely.
G
Hold on just a second
      D
Don't tell me this one you know
  Cmaj7
I know this one I know this song
I know this one I love this song
I know this one
Em G Cmaj7 (x2)
Em
Underneath the stalactites
    G           Cmaj7  
The troglobites lost their sight
Uh oh
Em                      G
The seemingly innocuous plecostomus
       Cmaj7
though posthumus
They talk to us
They talk too much
Em
See a sea anemone
    G
The enemy
          Cmaj7
See a sea anemone
That'll be the end of me
Em                   
Vicious fish was caught unawares
G                Cmaj7
In the tend'rest tendrils
Underneath her tender gills and
Em                 G
I will become this animal
Cmaj7
Perfectly adapted to a music hall
Em                 G
I will become this animal
Cmaj7
Anomalous appendages
A non-animal