Endermite looks messed up

What I expected:

the endermite looks similar to the silverfish

What I found:

the endermite looks like it only haves a body

How to repoduce:

1. open minecraft to 14w17a
2. make or open a world with creative
3. spawn a endermite. looks how weird it looks
4. spawn a silverfish
5. compare the endermite to the silverfish and that the endermite is very different from the silverfish.

Picture: (click link) http://gyazo.com/21baae0580f8aa21b2545ba5eb9a0e86 (side view)
http://gyazo.com/0e50369eec8e077b7c745b1222f9b262 (bird eye's view)