Once again not sure if anyone will see this but I don't think anyone has said anything about this.

If you notice on the cover of all four books the dragons seem to have these things that I can only describe as Antennae branching out from their eyebrows. This must be a male and female characteristic because it is on all of the books. Neither do I remember reading about it in any of the books which I have read a substantial amount of times. Discuss:

I didn't notice it at first either but as I looked at the cover of Brisinger one day i realized that they were just out of place

Well, they're usually something like whiskers. They're definitely a design influence from eastern dragons. It was an art choice, as they're never mentioned in the books, as far as I can remember.

what makes you think that they are wiskers

I always thought that the covers were what the dragons looked like, or am I wrong

They are the artist's interpretation of the description in the books. They're not necessarily what they look like. They look like how you imagine them. That's the beauty of books.

I said whiskers because that's always how I hear them called when describing eastern dragons. Catfish whiskers are right. That's what is meant by them.

I guess that makes sense I for one though am probably going to base what I think the dragons look like on the book covers

You'll also notice that the dragons on the book covers don't have any horns, even though dragons in the books are specifically described as having them.

what book say's that they have horns? I am not doubting you but I have read all the books numerous times and never saw that.