The tectum opticum of Pantodactylus schreiberii Wiegmann (Teiidae, Lacertilia, Reptilia).

We study the histology of the optic lobe of Pantodactylus schreiberii Wiegmann. It has 14 layers with characteristic cells in each of them. We study with emphasis the elements of the superficial layers, discussing some physiologic implications. We described four strata of optic terminals. To the strata 1 and 3 reach fibres from layer 14. To the stratum 4, from the layer 12 and to the stratum 2, fibres from both layers 14 and 12. Some optic fibres from layer 12 send collaterals which reach the stratum 4 of optic terminals.