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Abstract:

The horny structures of the buccal apparatus and buccopharyngeal cavity of Atelognathus salai were studied by scanning electron microscopy (SEM) and were compared to other known species of Atelognathus and related genera. Critical-point dehydration was done on the specimen and then coated with gold before using SEM for observations and photographs. The labial teeth form continuous, homogeneous rows and each tooth comprises a base, a neck, and a paddle with subequal marginal serrations. The prelingual region has six infralabial papillae on the buccopharyngeal cavity floor. There are elliptical choanae oriented transversally to the cephalocaudal axis on the buccopharyngeal cavity roof. The morphology of the oral apparatus and buccopharyngeal cavity observed in A.salai matches the general descriptions for other Atelognathus species. The characteristics in common with other Patagonian leptodactylid frogs of different habits may be attributed mainly to phylogenetic constraint rather than to convergent ecological adaptations.

Registro:

Documento: Artículo
Título:Scanning electron microscopy of the oral apparatus and buccopharyngeal cavity of Atelognathus salai larvae (Anura, Neobatrachia)
Autor:Echeverría, D.D.; Úbeda, C.A.; Basso, N.G.
Filiación:Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Laboratorio de Vertebrados, 1428 Buenos Aires, Argentina
Centro Regional Bariloche, Universidad Nacional del Comahue, Unidad Postal Universidad, R 8400 FRF Rio Negro, Argentina
Centro Nacional Patagónico, Blvd. Brown 3500, 9120 Puerto Madryn, Chubut, Argentina
Palabras clave:Anura; Atelognathus salai; Buccopharyngeal cavity; Morphology; Neobatrachia; Oral apparatus; Tadpole; comparative study; dehydration; frog; morphology; oral health; scanning electron microscopy; Patagonia; South America; Anura; Atelognathus; Atelognathus salai; Leptodactylidae; Neobatrachia
Año:2006
Volumen:5
Número:1
Página de inicio:77
Página de fin:81
DOI: http://dx.doi.org/10.11606/issn.2316-9079.v5i1p77-81
Título revista:Phyllomedusa
Título revista abreviado:Phyllomedusa
ISSN:15191397
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15191397_v5_n1_p77_Echeverria

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Citas:

---------- APA ----------
Echeverría, D.D., Úbeda, C.A. & Basso, N.G. (2006) . Scanning electron microscopy of the oral apparatus and buccopharyngeal cavity of Atelognathus salai larvae (Anura, Neobatrachia). Phyllomedusa, 5(1), 77-81.
http://dx.doi.org/10.11606/issn.2316-9079.v5i1p77-81
---------- CHICAGO ----------
Echeverría, D.D., Úbeda, C.A., Basso, N.G. "Scanning electron microscopy of the oral apparatus and buccopharyngeal cavity of Atelognathus salai larvae (Anura, Neobatrachia)" . Phyllomedusa 5, no. 1 (2006) : 77-81.
http://dx.doi.org/10.11606/issn.2316-9079.v5i1p77-81
---------- MLA ----------
Echeverría, D.D., Úbeda, C.A., Basso, N.G. "Scanning electron microscopy of the oral apparatus and buccopharyngeal cavity of Atelognathus salai larvae (Anura, Neobatrachia)" . Phyllomedusa, vol. 5, no. 1, 2006, pp. 77-81.
http://dx.doi.org/10.11606/issn.2316-9079.v5i1p77-81
---------- VANCOUVER ----------
Echeverría, D.D., Úbeda, C.A., Basso, N.G. Scanning electron microscopy of the oral apparatus and buccopharyngeal cavity of Atelognathus salai larvae (Anura, Neobatrachia). Phyllomedusa. 2006;5(1):77-81.
http://dx.doi.org/10.11606/issn.2316-9079.v5i1p77-81