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A Taxonomic Revision of the Leptodactylid Frog Genus Syrrhophus Cope

Cope (1878) proposed the genus _Syrrhophus_ for a medium-sized leptodactylid frog from central Texas; in the ensuing 75 years the genus was expanded to include a heterogeneous group of frogs ranging from Texas to Peru. Taylor (1952) and Firschein (1954) limited the genus to several species of frogs occurring in Guatemala, México, and Texas. Lynch […]

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The Tadpoles of Bufo Cognatus Say

The tadpoles of this species have been described by Bragg (Copeia, 1936: 14-20, figs. 1-13; Amer. Midl. Nat., 18:273-284, figs. 1-5, 1937). The drawings and descriptions of the mouthparts, however, appear to have been taken from dried, or immature, or transforming individuals, for they do not agree among themselves nor do they agree with larvae […]

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Systematic Status of a South American Frog

Gaige (1926) described _Allophryne ruthveni_ as a new genus and species of diminutive bufonid from British Guiana. Noble (1931) considered _A. ruthveni_ to be a toothless relative of _Centrolenella_ and placed the genus in the Hylidae. Gallardo (1965) suggested that _Allophryne_ is a leptodactylid of uncertain affinities. Other references to the monotypic genus have consisted […]

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The Systematics of the Frogs of the Hyla Rubra Group in Middle America

The tree frogs of the _Hyla rubra_ group are abundant and form a conspicuous element of the Neotropical frog fauna. Representatives of the group occur from lowland México to Argentina; the greatest diversity is reached in the lowlands of southeastern Brazil (Cochran, 1955). The group apparently originated in South America; the endemic Central American species […]

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A Review of the Middle American Tree Frogs of the Genus Ptychohyla

Probably no ecological group of hylid frogs (some _Hyla_ plus _Plectrohyla_ and _Ptychohyla_) in Middle America is so poorly known as those species that live in the cloud forests on steep mountain slopes and breed in cascading mountain streams. During the last half of the nineteenth century most of the species of hylids living in […]

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A Review of the Frogs of the Hyla bistincta Group

In the mountainous regions of Middle America there are several groups of hylid frogs that inhabit mountain streams. Some of these groups, such as _Plectrohyla_ and _Ptychohyla_, have been elevated to generic rank, whereas others are retained in the large and complex genus _Hyla_. In the mountains of México five species of hylids that seem […]

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A New Species of Frog,Genus Tomodactylus from Western Mexico

Thirteen specimens of frogs collected in the summers of 1960 and 1961 in the Mexican states of Durango and Sinaloa represent a heretofore unnamed species. The specimens have been deposited in the Museum of Natural History of the University of Kansas (KU) and in the Museum of Michigan State University (MSU).

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A New Order of Fishlike Amphibia From the Pennsylvanian of Kansas

A slab of shale obtained in 1955 by Mr. Russell R. Camp from a Pennsylvanian lagoon-deposit in Anderson County, Kansas, has yielded in the laboratory a skeleton of the small amphibian _Hesperoherpeton garnettense_ Peabody (1958). This skeleton provides new and surprising information not available from the holotype, No. 9976 K. U., which consisted only of […]

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A New Hylid Frog from Eastern Mexico

A small collection of Mexican reptiles and amphibians recently acquired by the University of Kansas Natural History Museum contains five specimens of a species of the genus _Hyla_ (_sensu lato_) which is here described as new.

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Neotropical Hylid Frogs, Genus Smilisca

The family Hylidae, as currently recognized, is composed of about 34 genera and more than 400 species. Most genera (30) and about 350 species live in the American tropics. _Hyla_ and 10 other genera inhabit Central America; four of those 10 genera (_Gastrotheca_, _Hemiphractus_, _Phrynohyas_, and _Phyllomedusa_) are widely distributed in South America. The other […]

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