Abnormalities or aberrations in various reptiles are briefly discussed. Details and photographs are provided of some abnormalities observed in a few South African species. These include major differences in the body scales of a specimen of Pseudocordylus subviridis, deformed full- term foetuses of Causus rhombeatus and Boaedon capensis, minor differences in head scales in Dendroaspis angusticeps, Tropidosaura montana natalensis, Philothamnus occidentalis andPhilothamnus semivariegatus, as well as colour mutations in Philothamnus spp. and other snakes.