Chiloscyllium punctatum, male: Vertebral column with chondrocranium as rendered surface. Arrow pointing to the longitudinal ribs running around the centre in the CT-image. A lateral, B dorsal, C detail lateral and D transversal cross-section through dorsal region (CT-image). Abbreviations: cc, chondrocranium; ce, centrum; na, neural arch; nca, neural canal; ns, neural spine; ntc, notochord; sc, spinal cord; vc, vertebral column.