None that I know of.

Mutt when she was small, before the silver took over (her grandfather
was a silver poodle and the silver doesn't come in for a couple years
from what I hear) she had squirrel fur. It was black on top but her
undercoat was a definite golden brown. She still has the apricot
markings (her mother was a black/apricot poodle with exact markings as a
black/tan hound) along the nose, chest and paws but her squirrel
undercoat has given way to a lighter shade of black and silver topcoat.
It was the terrier in her that gave the texture and undercoat appearance
but the poodle topcoat genes came out and dominated as she grew.

Grace

I've only heard of the Rhodesian Ridgeback.  The fur along the spine grows
in the opposite direction and sticks straight up, creating a ridge.  A lot
of the Thai street dogs seem to have ridges too.
--
Britta
Check out pictures of Vino at:
http://photos.yahoo.com/badwilson click on the Vino album

In news:8ob61099i8d511trkhm7o9oqnlo7vrhluh@4ax.com,
John F. Eldredge <john@jfeldredge.com> radiated into the
WorldWideWait:

OBvious - it's an Austrailian Ridgeback.
I'll just get my coat now, shall I...

Ridgebacks have only one ridge dont they? I'm not sure but it could be some
related breed Jean P.

The effect could also result from her being a mix of breeds. The German
Shepherd has coarse fur, but if there is some curly or wavy fur in her
ancestry, that might, combined with the coarseness, make this unusual
pattern. The coarse fur genes wouldn't allow the curls to develop fully,
but the curly genes would still try to bend the fur at least a bit.
And, just to make it perfectly clear, I'm *not* a genealogist, just
working on a "blonde hunch" here...  :D

The fur of the ridgeback is short and flat and the ridge actually grows
"the wrong way", towards the head, when the rest grows towards the tail.
I don't thing that's what you meant in your description, did you?

Suggestion:  Post to a dog group.  One of the experts there might have
an answer.   I remember seeing (many years ago) a very large dog with
brown tighly curled short hair.  Perhaps a breed of this sort might
produce offspring with ridges.

Fluffy, who obviously has alot of border collie and Australian Cattledog in
her heritage, has an interesting set of "waves" on her neck and near her
tail. At the top of her head, near her ears, the direction of fur turns
right around, leaving little "poofs" of sticking up hair. Around her neck,
the hair goes in such a way that thre is a very obvious collar line - but
the strange thing is she has had that since she first starting getting adult
fur - long before she wore a collar.

Perhap sthese ridges are nothing more thant "waves" like Fluffy's. And I
have no idea why they are are there butnot present on standard border collie
sor cattledogs.

Yowie