I have a normal with some subtle white that may be spider. This video of yours is exactly how my normal eats. She is a sweetheart and wouldn't give her up. I only have her 2 months and she is my 1st snake. My son & I watch her eat and we commented its like she is retarded or stupid. Sometimes takes her 3 hours to down a meal and I feel bad she has to work so hard at it. At least I know it is not unheard of for a snake to eat like this.