FIGURE 2.

(a) Dorsal view of the central nervous system the tree pangolin (modified from Figure 1 by the digital removal of the spinal nerves) showing the levels (1–42, each approximately 3 mm apart) at which coronal sections were taken for analysis. These levels are referred to throughout this manuscript. (b) Due to the shortening of the tree pangolin spinal cord (which is approximately 13 cm in length), we adopt the regional terminology, rather than the more commonly used segmental terminology, for describing the tree pangolin spinal cord as outlined by Sengul et al. (2013). As with other mammals the tree pangolin spinal cord can be divided into six regions, these being, from rostral to caudal, the prebrachial (levels 1–3), brachial (levels 4–7), interramal (levels 8–20), crural (levels 21–25), postcrural (levels 26–28), and caudal (levels 29–42) regions (region delineation based on architectonic analysis, see below). (c) Graph depicting the cross‐sectional area of the spinal cord in the coronal plane. Note the enlargement of the spinal cord at the brachial and crural regions, which coincide with the input from the limbs (see Table 2 for data)