Think I got the same answer as jlk64. Keep on looking through the neopets descriptions and comparing with the LC clues and you will get it soon enough. Just remember that the sentence structure of the species description should be very similar if not exactly matching the clue.
I'm sure I'm asking a very stupid question now, where can I find the LC clues ?
Maybe it's because here it is 1 o'clock at night, I can't think straight anymore