flintstones
Senior Guinea Pig
Can't leave Fred Out!
Here's Autumn's ridgy profile
This is sugar, who has a ridge in his back, but is part abby part PEW (or so I'm lead to believe.) On the right is his brother spice
Baby Suilven
and now with Hamish & Angus
He's a crested/ridgeback cross with a really pronounced, tidy ridge right down his back.