Snout in lateral profile nearly square, slightly rounded above and below, and in dorsal profile blunt, almost square; canthus pronounced; loreal region concave; lips thick, rounded and flaring; nostrils protuberant; internarial distance, 2.5 mm.
"A Review of the Middle American Tree Frogs of the Genus Ptychohyla"
William E. Duellman
Snout in lateral profile nearly square, slightly rounded above, and in dorsal profile bluntly rounded; canthus pronounced; loreal region moderately concave; lips thick, rounded, and slightly flaring; nostrils protuberant; internarial distance, 3.0 mm.
"A Review of the Middle American Tree Frogs of the Genus Ptychohyla"
William E. Duellman
In fractures of the orbital plate and bruises of the forehead, on the other hand, the ecchymosis does not appear in the eyelids for several days, and that under the conjunctiva is usually disposed on the globe as a triangular patch towards the lateral canthus.
"Manual of Surgery Volume Second: Extremities--Head--Neck. Sixth Edition."
Alexander Miles Alexis Thomson