Architectonic studies of the diencephalon of <i>Iguana iguana</i> (Linnaeus)

Abstract

Abstract The normal anatomy of the nuclei and major fiber tracts of the diencephalon and pretectum of the lizard, Iguana iguana , are described and compared to descriptions of the diencephalon of other reptiles. Clarification of variations in the nomenclature has been attempted, based on comparison of normal and experimental material. Experimental studies of afferent and efferent projections of the diencephalon of various reptiles are reviewed and discussed. The earlier literature on thalamic homologies between reptiles and other vertebrates is re‐examined, and a new interpretation offered based on these new results.