Representative phalangeal cross sections of two individuals of the analysed population of Mantidactylus grandidieri from a rainforest close to Vevembe (South East Madagascar). A) Male 63 mm of SVL. B) Female 81 mm of SVL. Arrows indicate lines of arrested growth (LAGs) as identified in this study. In B) the third hematoxynophilic line (empty circle) was interpreted as accessory (intermediate) line caused by a non-annual event. Scale bar: 170 µm.