The distribution of the big-headed turtle Platysternon megacephalum, Gray 1831 in Thailand was studied from Dec. 2006 to Apr. 2009. Mountain streams of protected and unprotected areas throughout Thailand, except in the southern peninsular region, were ground surveyed. This study confirms the occurrence of P. megacephalum in 1 new and 9 previously reported river basins in the northeastern part of Thailand. Leer más.