FIGURE 11. Vertebrals 2 and 3 in Morphology of the lectotype of Chelodina oblonga Gray 1841 (Testudines: Chelidae)

FIGURE 11. Vertebrals 2 and 3 in (A) C. oblonga lectotype; (B) C. oblonga paralectotype; (C) C. oblonga NHMUK 52.11.12.1 / 1947.3.5.90 (Swan River, WA, syntype of C. colliei); (D) C. kurrichalpongo NHMUK 42.1.12.123 (Port Essington, N.T.); (E) C. kurrichalpongo AMS R129353 (Cobourg Peninsula, NT). In C. oblonga (A, B, C) the sulcus between V1 and V2 (a) is usually straight; the microtopography of the medial portions of V2 and V3 (b) consists of broadly rounded nodules while the lateral portions (c) have narrow longitudinal striations and the vertebrals have shallow insertions (d) into pleurals. In C. kurrichalpongo (D, E) the sulcus between V1 and V2 (e) is usually curved; the microtopography is uniform across V2 and V3 (f); or the medial portions have narrow longitudinal striations (g), while lateral portions (h) tend to have more broadly rounded nodules and the vertebrals have deeper insertions (i) into pleurals. (photo (B) Katherine Child, courtesy of Oxford University Museum of Natural History); photo (E): Ross Sadlier).