The anterior process of the Squamosal is short and widely separated from the maxillary.
"A Review of the Middle American Tree Frogs of the Genus Ptychohyla"
William E. Duellman
There is no Squamosal-maxillary connection.
"A Review of the Frogs of the Hyla bistincta Group"
William E. Duellman
From Cratogeomy castanops excelsus, found to the southwest, jucundus differs in: Body larger; hind foot averaging larger; upper parts darker, more ochraceous, and less buffy; underparts darker, more buffy and less whitish; skull slightly smaller; zygomata less widely flaring, especially in females; palate shorter; nasals shorter; Squamosal breadth less; mastoid bullae more inflated; incisors narrower.
"Geographic Variation in the Pocket Gopher, Cratogeomys castanops, in Coahuila Mexico"
Robert J. Russell Rollin H. Baker