Mature males, in turn, presented longer tail, longer and wider head and a higher number of subcaudal scales.
Fernando Marques Quintela, Daniel Loebmann 2019, 'Aspects of reproduction and sexual dimorphism of Lygophis flavifrenatus (Dipsadidae:Xenodontinae)', Iheringia: Série Zoologiahttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212019000100210&lng=en&tlng=en. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)