Missing link found : the second ancestor of Gymnophthalmus underwoodi (Squamata, Teiidae), a South American unisexual lizard of hybrid origin - Cole, Charles J.; Dessauer, Herbert C.; Markezich, Allan L. (New York, N.Y, American Museum of Natural History, c1993, 1993)
https://www.biodiversitylibrary.org/bibliography/196493
Keywords: Gymnophthalmus underwoodi|Reptiles|Venezuela|