The museum catalogue numbers of the specimens examined, together with
the localities from which they came, are listed at the end of the
account of each subspecies or monotypic species. The localities that
are represented by symbols on the distribution map (Fig. 7) are in
roman type; those that are not represented on the map, because
overlapping of symbols would have occurred, are in italic type.
=Ptychohyla= Taylor, 1944
_Ptychohyla_ Taylor, Univ. Kansas Sci. Bull., 30:41, May 15, 1944.
Type, _Ptychohyla adipoventris_ Taylor, 1944 [= _Hyla
leonhardschultzei_ (Ahl), 1934].
_Diagnosis._--Small hylids having stream-adapted tadpoles and
differing from other hylid genera in having large ventrolateral glands
in breeding males.
_Composition._--Five species, two of which are made up of two
subspecies, arranged in two groups of species on the basis of
morphological characters of adults and tadpoles and on the basis of
breeding calls.
_Distribution._--Moderate elevations from southern Guerrero and
northern Oaxaca, Mexico, to northern El Salvador and central Honduras.