Cytogenetic study of Leposternon and Amphisbaena (Amphisbaenia: Squamata)

Cytogenetic analyses (Giemsa staining and NOR-banding) were performed on South American species of Amphisbaenidae. Leposternon microcephalum (2n = 34), Amphisbaena darwini heterozonata(2n = 30), A. hiata (2n = 30) and A. mertensi (2n = 40) from different localities of Argentina were examined. The comparative cytogenetic analysis indicates that the four species might be distinguished by the NORs locations.