Are these predator Nudibranchs?

[aesop]

I have some white nudis that are on the back of a plate moti. There is also some eggs in the area where there are some polyps also.

I remember seeing their pics somewhere; and it being Id'd as polyp eating nudis. Anyone with a positive id?

Pics are here..
http://24.43.148.102:9999/out/id/large/tn/page_01.htm

 

[Reefguide]

Have no clue, but really nice close-ups !