Helicops Wagler, 1828

Luna, Igor Veronese de, Ugalde, Miguel Relvas, Guimarães, Mariana Rocha Santos, Hoffmann, Kauann, Citeli, Nathalie, Kiefer, Mara Cintia & Hamdan, Breno, 2025, Fig. 3 in Positive association between PTN polymorphisms and schizophrenia in Northeast Chinese Han population., Zoological Studies 64 (20), pp. 141-149 : 7

Helicops Wagler, 1828

1. 130–140 ventral scales in males and 135–144 in females; 48–67 subcaudal scales in males and 48–55 in females; subcaudal keels absent; neck scales smooth or weakly keeled, and posterior scales strongly keeled; yellow or cream ventre with 2 series of black marks, occasionally with single series of small black spots forming a finer midventral row ..................................................... .................................................. Helicops carinicaudus ( Fig. 23c )

Figures

Fig. 23. Representative Dipsadidae Snakes of Rio de Janeiro: a, Erythrolamprus typhlus juvenile from Amazonas State; b, Erythrolamprus typhlus adult from Amazonas State; c, Helicops carinicaudus from Niterói/RJ; d, Imantodes cenchoa from Amargosa/BA; e, Leptodeira annulata from Rio de Janeiro/RJ; f, Mussurana montana from Petrópolis/RJ; g, Oxyrhopus clathratus from Nova Friburgo/RJ; h, Oxyrhopus guibei from Volta Redonda/ RJ. AM = Amazônia, BA = Bahia, RJ = Rio de Janeiro. Photos by Breno Hamdan (c, e, g), Gustavo Pedro L. de Paula (f), Igor Veronese de Luna (h), Laurie Joseph Vitt (b), Marco Antônio de Freitas (a, d).