 The color pattern consists of a series of pale , <unk> blotches running down the center of the back , <unk> with dark , yellow @-@ edged <unk> markings . The flanks have a series of <unk> or brown <unk> shapes , with light vertical central bars . The belly is pale with irregular brown or black blotches . The head is white or cream with a fine , dark central line , black spots on the rear corners , and a dark blue @-@ black triangle behind and below each eye . The iris colour is cream , yellow @-@ white , orange or silvery . 
