Xenodontini Bonaparte, 1845

Waltrick, Camilla Spengler & Giasson, Luís Olímpio Menta, 2021, Taxonomic key to the snakes (Squamata: Ophidia) species of the Itajaí Valley, Santa Catarina, Brazil, Papéis Avulsos de Zoologia 61, pp. 1-15 : 9

Tribe Xenodontini Bonaparte, 1845

Members from this tribe have hemipenis with paired apical disks and without calyces and capitular grooves Zaher et al. (2009). In the Itajaí Valley, Erythrolamprus and Xenodon are the representant genera from this tribe (Bérnils et al., 2001). Both genera display body flattening as a defensive strategy (Fraga et al., 2013; Zaher et al., 2009). Erythrolamprus shows a great range of color patterns, that can be uniform ( Dixon, 1987), striped (Dixon, 1983), and banded (Dixon, 1983). Xenodon species have triangular-shaped heads very protruded from the body ( Chippaux,1986), they also show a high level of polychromatism, specifically in Xenodon merremii ( Cacciali, 2010) .