Keel Snouted Treefrog

Hyla mykter is a medium sized (max SVL of 40.1 mm in males, 50.9 mm in females) member of the Hyla bistincta species group with long fingers with vestigial webbing (outermost fingers are one-fifth webbed). The dorsum of the head and body is a yellowish-green while the limbs are a pale yellowish brown. Entire dorsum covered with black reticulations and spots. The canthus and supratympanic fold are black edged; tympanum is brownish-green. Iris is golden orange with black reticulations. Ventrally, H. mykter is a mottled dusky brown, grading toward a deep purplish gray or chocolate brown around the edges of the body but also with some brassy pigment. This species has a truncate snout with a slight rostral kep. Head is broad and moderately flat. Supratympanic fold is very obvious, extending from posterior border of eye to above arm insertion; covers upper edge of tympanum (which has a diameter of 2.1 mm). Fingers are long and have relative lengths of 1

All specimens have been found in cool, moist, oak-pine or (at lower elevations) in bamboo-tree fern cloud forests near Cerro Teotepec between 1985-2520 m elevation (which were collected in December). The holotype was found fully exposed on vegetation directly over a stream at night.

Males lack vocal slicks.

Sarcohyla mykter, also known as the keelsnout treefrog or keel-snouted treefrog, is a species of frog in the family Hylidae. It is endemic to the Sierra Madre del Sur in Guerrero, Mexico. Its sister species is Sarcohyla chryses.

Sarcohyla mykter occurs in high-elevation (1,985–2,520 m (6,512–8,268 ft) above sea level) cloud and wet pine-oak forest and oak woodland in association with streams, its breeding habitat. It is an uncommon species, even though it is regularly encountered during surveys. It is threatened by habitat loss and potentially also by chytridiomycosis. It is not known from protected areas.