Description of the hemipenial morphology of Tupinambis quadrilineatus Manzani and Abe, 1997 (Squamata, Teiidae) and new records from Piauí, Brazil

Abstract

Few data are available on the morphology of the hemipenis of teiid lizards, especially those of the recently-defined genus Tupinambis, a widely-distributed group of large-bodied lizards. This study provides an illustrated description of the hemipenis of Tupinambis quadrilineatus, which is similar to that of other representatives of the Tupinambinae subfamily. New records of the species from the state of Piauí, in northeastern Brazil, are also presented.

Reptile species composition in the Middle Gurguéia and comparison with inventories in the eastern Parnaíba River Basin, State of Piauí, Brazil

“…Pelegrin et al (2017) described differences in microhabitat preferences in the Caatinga among Tropidurus hispidus, T. helenae and T. semitaeniatus, three sympatric species found in the Parque Nacional Serra da Capivara. Drymoluber brazili, Micrablepharus maximiliani and Tupinambis quadrilineatus, which were also found in other areas of Piauí, were recorded in areas with a predominance of Caatinga, Cerrado-Caatinga ecotone and Cerrado vegetation, respectively (Moura et al, 2010;Freitas et al, 2012;Silva et al, 2013).…”

Embryological development of Salvator merianae (Squamata: Teiidae)

“…Although its embryological morphology is not well described in Teiidae family (Harvey et al, ), in animals hatched every hemipenis is lightly bilobulated. Both hemipenis are relatively large and robust (Harvey et al, ), and as in other reptiles (Gredler et al, ), the phallus presents an open sulcus that functions as a canal for the transportation of sperm (Moore, Mathavan, & Guillette Jr., ); in the squamata this sulcus runs through the length of every hemipenis, and conform an arched structure (Basto da Silva et al, ). In S. merianae on Day 5, it was observed that the genital primordium has developed as two swellings separated, called genital papillae.…”

Cryptic, Sympatric Diversity in Tegu Lizards of the Tupinambis teguixin Group (Squamata, Sauria, Teiidae) and the Description of Three New Species

“…palustris is apparently restricted to wetlands in the vicinity of the type locality at Usina Hidréletrica Três Irmãos, in the lower Tiete River, between Aracatuba and Pereira Barreto in the state of São Paulo, Brazil. Tupinambis quadrilineatus is endemic to the savannas of central Brazil [ 13 , 14 , 15 ], however Langstroth [ 16 ] suggested it may also occur in Bolivia. These three species have all been described since 1995.…”