Lateral views of the head in two species of Ninia: (a) N. guytudori sp. nov. JMG 1327; (b) N. schmidti comb. nov. TH 503.
Part of: Arteaga A, Harris KJ (2023) A new species of Ninia (Serpentes, Colubridae) from western Ecuador and revalidation of N. schmidti. Evolutionary Systematics 7(2): 317-334. https://doi.org/10.3897/evolsyst.7.112476