FIGURE 3 in First description of neonate Batagur trivittata (Testudines: Geoemydidae)
FIGURE 3. Plastron of neonate Batagur trivittata showing umbilical scar and prominent keel-like bony ridge extending along the lateral edge from humeral to anal scutes (A). Lateral view of the bony ridge (B). Note the sharp rearward pointing spines on the bony ridge, which become blunt by age three and disappear by age four. The bony ridge recedes with age and is no longer evident by age five. Note also the spine-like posterior-pointing projections on the medial keel of the carapace (Photographed by Myo Min Win).
Rainwater, Thomas R.; Haislip, Nathan A.; Platt, Steven G.; Lwin, Tint; Win, Myo Min; Platt, Kalyar; Van Dijk, Peter Paul (2020), "FIGURE 3 in First description of neonate Batagur trivittata (Testudines: Geoemydidae)", Zenodo, doi: 10.5281/zenodo.4015095