Fig. 2 in The endemic herpetofauna of Central America: a casualty of anthropocentrism

Fig. 2. Physiographic regions of Central America, after Campbell (1999). Abbreviations are as follows: CG = western nuclear Central American highlands; CGU = Pacific lowlands from eastern Chiapas to south-central Guatemala; CP = Pacific lowlands from central Costa Rica through Panama (area includes associated Pacific islands); CRP = Isthmian Central American highlands; EP = highlands of eastern Panama; GCR = Pacific lowlands from southeastern Guatemala to northwestern Costa Rica; GH = Caribbean lowlands of eastern Guatemala and northern Honduras (area includes associated Caribbean islands); HN = eastern nuclear Central American highlands; NP = Caribbean lowlands from Nicaragua to Panama (area includes associated Caribbean islands); and YP = Yucatan Platform.