Scanning electron microscopy of the oral apparatus and buccopharyngeal cavity of Atelognathus salai larvae (Anura, Neobatrachia)

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...

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Autores principales: Echeverría, Dinorah Diana, Ubeda, Carmen A.
Publicado: 2006
Materias:
Anura
Atelognathus salai
Buccopharyngeal cavity
Morphology
Neobatrachia
Oral apparatus
Tadpole
comparative study
dehydration
frog
morphology
oral health
scanning electron microscopy
Patagonia
South America
Atelognathus
Leptodactylidae
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15191397_v5_n1_p77_Echeverria
http://hdl.handle.net/20.500.12110/paper_15191397_v5_n1_p77_Echeverria
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_15191397_v5_n1_p77_Echeverria
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spelling paper:paper_15191397_v5_n1_p77_Echeverria2023-06-08T16:18:43Z Scanning electron microscopy of the oral apparatus and buccopharyngeal cavity of Atelognathus salai larvae (Anura, Neobatrachia) Echeverría, Dinorah Diana Ubeda, Carmen A. 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 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. Fil:Echeverría, D.D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Úbeda, C.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2006 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15191397_v5_n1_p77_Echeverria http://hdl.handle.net/20.500.12110/paper_15191397_v5_n1_p77_Echeverria
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic 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
spellingShingle 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
Echeverría, Dinorah Diana
Ubeda, Carmen A.
Scanning electron microscopy of the oral apparatus and buccopharyngeal cavity of Atelognathus salai larvae (Anura, Neobatrachia)
topic_facet 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
description 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.
author Echeverría, Dinorah Diana
Ubeda, Carmen A.
author_facet Echeverría, Dinorah Diana
Ubeda, Carmen A.
author_sort Echeverría, Dinorah Diana
title Scanning electron microscopy of the oral apparatus and buccopharyngeal cavity of Atelognathus salai larvae (Anura, Neobatrachia)
title_short Scanning electron microscopy of the oral apparatus and buccopharyngeal cavity of Atelognathus salai larvae (Anura, Neobatrachia)
title_full Scanning electron microscopy of the oral apparatus and buccopharyngeal cavity of Atelognathus salai larvae (Anura, Neobatrachia)
title_fullStr Scanning electron microscopy of the oral apparatus and buccopharyngeal cavity of Atelognathus salai larvae (Anura, Neobatrachia)
title_full_unstemmed Scanning electron microscopy of the oral apparatus and buccopharyngeal cavity of Atelognathus salai larvae (Anura, Neobatrachia)
title_sort scanning electron microscopy of the oral apparatus and buccopharyngeal cavity of atelognathus salai larvae (anura, neobatrachia)
publishDate 2006
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15191397_v5_n1_p77_Echeverria
http://hdl.handle.net/20.500.12110/paper_15191397_v5_n1_p77_Echeverria
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AT ubedacarmena scanningelectronmicroscopyoftheoralapparatusandbuccopharyngealcavityofatelognathussalailarvaeanuraneobatrachia
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