saddlebacked
saddle-backed

Due to its unusual 'saddlebacked' shape, this is the only Seychelles tortoise species that regularly basks in the sun.

The Rooks seemed more used to it, and their woman leader made a good case that they had to go over the saddlebacked peaks if they were to reach the Families by dusk.

The Arctic shrew (Sorex arcticus), also known as the blackback shrew or saddlebacked shrew, is a medium-sized shrew found in Canada and the northern United States.