Leskit, helmsman during General Martok's first command of the IKS Rotarran, wore a necklace made of Cardassian neckbones in 2373. (DS9: "Soldiers of the Empire") Cardassian neckbones likely formed the distinctive neck ridges in the species. Constable Odo emphasized that the neckbones were Cardassian neckbones, implying that other species have neckbones as well.