Mabuya Fitzinger

The circumtropical genus Mabuya Fitzinger has recently been subjected to revision. Molecular analysis (Mausfeld et al. 2002) suggested that Mabuya consists of several long-separated evolutionary lineages, representing distinct and well supported monophyletic radiations. The South American species must retain the name Mabuya (Dunn 1935) . The karyotype of the Neotropical species has been studied for only four species. Mabuya caissara and Mabuya macrorhyncha both have 2n = 32 (18 macrochromosomes and 14 microchromosomes) (Colus & Ferrari 1988). Mabuya mabouya showed 2n = 30 in the females and 2n = 31 in the males, indicating a XY sex chromosomal system (Beçak et al. 1972), whereas M. frenata showed 2n = 30 (Hernando & Alvarez 1990).