Skull morphology diagram in dorsal (left column) and ventral (right column) views in four species of the Pristimantis myersi species group: A, B P. donnelsoni sp. nov., DHMECN 4808 C, D P. kayi sp. nov., DHMECN 14447 E, F P. gladiator DHMECN 12465 G, H P. festae DHMECN 9294. Detail of the skull bones abbreviations: pmax = premaxilla; max = maxilla; spheth = sphenethmoides; fpar = frontoparietal; pter = pterigoides; pro = prootic; q = quadratojugal; sp = squamosal; exo = exoccipital; prph = parasphenoides. Frontoparietal fontanelle not coloured.

  Part of: Reyes-Puig JP, Urgilés-Merchán M, Franco-Mena D, Guayasamin JM, Batallas D, Reyes-Puig C (2023) Two new species of terrestrial frogs of the Pristimantis gladiator complex (Anura, Strabomantidae) from the Ecuadorian Andes, with insights on their biogeography and skull morphology. ZooKeys 1180: 257-293.