No otherhylids in northern Central America and southern Mexico can be confused with this species.
As part of his survey of the hylids of Middle America, the first author accumulated field and laboratory data on the frogs throughout their ranges in Mexico and Central America.
Two other hylids (Hyla lanciformis and multifasciata) in the Amazon Basin have transverse dark marks on the dorsum.
Because of our interests in hylids we have begun our studies on these frogs.
The findings reported here result from research on Middle American hylids supported by a grant from the National Science Foundation (GB-1441) to William E.
Compared to hylids not having integumentary-cranial co-ossification, the dermal roofing bones of Smilisca baudini are extensive, and the skull is well-ossified internally.
Small hylids having stream-adapted tadpoles and differing from other hylid genera in having large ventrolateral glands in breeding males.
It is more logical to assume that the development of the glands took place only once in a stock of hylids that gave rise to the five species herein recognized as members of the genus Ptychohyla.
At no locality were Ptychohyla and associated species of hylids found so abundantly as were species of pond-breeding hylids in the lowlands.
That ventrolateral glands developed independently in five species of frogs in southern Mexico and northern Central America and not in any of the other approximately 500 species of hylids in the world is untenable.
All small hylidsthat are sympatric with Ptychohyla leonhardschultzei are either yellow (Hyla dendroscarta and H.
Ptychohyla ignicolor and several small and moderate sizedhylids are sympatric.
Ptychohyla as a Natural Assemblage As stated in the diagnosis of the genus, the only character that sets this group of species apart from other hylids is the presence of ventrolateral glands in the breeding males.
Other hylids sympatric with Ptychohyla spinipollex include three species of Plectrohyla, each of which has a bony prepollex, heavy body, and rugose skin on the dorsum.
Consequently, interspecific competition among the various species of hylids whose tadpoles live in the torrential streams probably is highest during the larval stage.
During the last half of the nineteenth century most of the species of hylids living in the lowlands of southern Mexico and northern Central America were named and described.
Because our knowledge of the skeleton in hylids is so incomplete, we are not attempting to place Smilisca in the general scheme of hylid phylogeny on the basis of skeletal characters.
In the mountains of Mexico five species of hylids that seem to compose a phyletic unit are herein referred to as the Hyla bistincta group.
From other hylids that occur in the same area, Hyla charadricola differs from Hyla miotympanum and H.
Since in most stream-breeding hylids there is no migration to breeding sites, the breeding call does not function to attract females to the breeding site.
Although this type of egg deposition is characteristic of some rhacophorines and apparently all centrolenids, it is known among hylids only in the phyllomedusines and in two species of Hyla.
The species of Phyllomedusa live in the same kinds of habitats as do those of Agalychnis, but throughout the ranges of most of the species of Phyllomedusa the diversity of arboreal hylids is much greater than in Central America.
The only other hylids having a vertical pupil belong to the Papuan genus Nyctimystes.
In the upper Amazon Basin as many as 35 hylids occur sympatrically.
These species differ from all other Neotropical hylids by possessing a vertical, instead of horizontal, pupil.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "hylids" in a variety of sentences. We hope that you will now be able to make sentences using this word.
