Nelson da Silva's scientific contributions

... Most coralsnakes have a color pattern of some combination of red, yellow or white, and black rings (Campbell and Lamar, 2004). Although a comprehensive phylogenetic analysis of the species that make up the genus is still pending (Zaher et al., 2021), some monophyletic groups have been identified based on the structure of their hemipenes and molecular characters: the group of monadal black ring coralsnakes, which have slender and strongly bifurcated hemipenes; the group of triad pattern coralsnakes with short, bilobed hemipenes; and the group of bicolored coralsnakes with strongly bilobed and slender hemipenes (Slowinski, 1995). Envenomings by coralsnakes are characterized by paresthesia, local pain, palpebral ptosis, dizziness, blurred vision, weakness, slight local edema, erythema, dysphagia, dyspnea, myalgia, salivation and respiratory failure which may lead to death (Bucaretchi et al., 2016). ...