Robuta

https://journals.ku.edu/reptilesandamphibians/article/view/18991 Attempted cannibalism in the Black-striped Snake (Coniophanes imperialis) in the Calakmul Biosphere... in the black attempted cannibalism https://species.wikimedia.org/wiki/Coniophanes_melanocephalus Coniophanes melanocephalus - Wikispecies wikispecies https://species.wikimedia.org/wiki/Coniophanes_joanae Coniophanes joanae - Wikispecies wikispecies https://species.wikimedia.org/wiki/Coniophanes_dromiciformis Coniophanes dromiciformis - Wikispecies wikispecies