A New Frog of the Genus Ptychohyla (Hylidae) from the Sierra de Santa Cruz, Guatemala, and Description of a New Genus of Middle American Stream-Breeding Treefrogs

  • Campbell Jonathan A.;Smith E
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Ptychohyla sanctaecrucis is named from the subtropical wet forest
of the Sierra de Santa Cruz in Guatemala. The genus Ptychohyla is
redefined to include 10 species, the larvae of which have large ventral
mouths with minimally 2-3/5, and up to 6/9, long tooth rows and well
developed lateral folds. A new genus, Deullmanohyla, is described
for the Central American group of hylid frogs with larvae having
large pendant mouths with 2/2, 2/3, or 3/3 short tooth rows. The
phylogeny of these problematical groups of frogs is analyzed with
an emphasis on larval morphology and certain sexually dimorphic features.
Two species, P. macrotympanum and D. chamulae, are resurrected from
synonymy. /// Se describe una nueva especie de hylido, Ptychohyla
sanctaecrucis, del bosque lluvioso subtropical de la Sierra de Santa
Cruz, Guatemala. Se caracteriza por su gran tamano (hembras hasta
50.7 mm); machos adultos con pequenas espinas nupciales, y un canto
que consiste en notas tartamudas y bajas; membranas interdigitales
reducidas en las manos; iris castano muy palido, casi blanco, con
finas marcas cafes. Las larvas poseen una boca grande ventral con
pliegues laterales, dos hileras de papilas laterales, y dientes en
hileras largas en relacion 5/7. La composicion del genero Ptychohyla
se redelimita haciendo enfasis en morfologia larval y caracteres
relacionados a dimorfismo sexual. Se incluye en el genero a Hyla
salvadorensis, H. legeri, H. erythromma, Ptychohyla panchoi, P. merazi,
P. sanctaecrucis, y las taxa del grupo euthysanota (sensu Duellman,
1970) antes reconocidas. Se describe un nuevo genero de hylido, Duellmanohyla.
Las larvas de este genero poseen una boca gigante y pendiente con
una hilera de papilas laterales y dientes en hileras cortas en relacion
2/2, 2/3, o 3/3. Se presenta un cladograma de los generos Duellmanohyla
y Ptychohyla y se sugiere estatus especifico para D. chamulae Duellman
(1961) y P. macrotympanum (Tanner, 1957)

Author-supplied keywords

  • Amphibia;Anura;Hylidae;Ptychohyla sanctaecrucis sp

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  • Eric N Campbell Jonathan A.;Smith

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