Bryson, U, DM Paijmans, and M Boorman. 2023. “Tractrac Chat <i>Emarginata tractrac</i>: Comparative Biometrics, Moult Data and Criteria for the Determination of Age and Sex”. Namibian Journal of Environment 7 (July). Windhoek, Namibia:Section D, 41-. https://nje.org.na/index.php/nje/article/view/volume7-bryson3.