The Hypertrophy of the Tympanic Bulla in Three Species of Dasypodids (Mammalia, Xenarthra) from Argentina

The morphology and relative size of the tympanic bulla of three species of dasypodids from Argentina, Chaetophractus villosus, C. vellerosus and Zaedyus pichiy, were studied. The bulla was observed to be morphologically similar and evidently hypertrophied in the three species. The degree of hypertro...

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Main Authors:	Squarcia,Silvia Margarita, Sidorkewicj,Nora Silvia, Casanave,Emma Beatriz
Language:	English
Published:	Sociedad Chilena de Anatomía 2007
Subjects:	Chaetophractus villosus Chaetophractus vellerosus Zaedyus pichiy Middle ear Tympanic bulla
Online Access:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022007000300021
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spelling	oai:scielo:S0717-950220070003000212007-10-30The Hypertrophy of the Tympanic Bulla in Three Species of Dasypodids (Mammalia, Xenarthra) from ArgentinaSquarcia,Silvia MargaritaSidorkewicj,Nora SilviaCasanave,Emma Beatriz Chaetophractus villosus Chaetophractus vellerosus Zaedyus pichiy Middle ear Tympanic bulla The morphology and relative size of the tympanic bulla of three species of dasypodids from Argentina, Chaetophractus villosus, C. vellerosus and Zaedyus pichiy, were studied. The bulla was observed to be morphologically similar and evidently hypertrophied in the three species. The degree of hypertrophy was higher in C. vellerosus and C. villosus than in Z pichiy. By means of ANCOVA it was clear that, although C. villosus has a bigger skull than C. vellerosus, the relative size of their tympanic cavity was similar in both species. On the other hand, the skull of C. vellerosus and Z pichiy are of similar size but the bulla was relatively shorter in the laterinfo:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.25 n.3 20072007-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022007000300021en10.4067/S0717-95022007000300021
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Chaetophractus villosus Chaetophractus vellerosus Zaedyus pichiy Middle ear Tympanic bulla
spellingShingle	Chaetophractus villosus Chaetophractus vellerosus Zaedyus pichiy Middle ear Tympanic bulla Squarcia,Silvia Margarita Sidorkewicj,Nora Silvia Casanave,Emma Beatriz The Hypertrophy of the Tympanic Bulla in Three Species of Dasypodids (Mammalia, Xenarthra) from Argentina
description	The morphology and relative size of the tympanic bulla of three species of dasypodids from Argentina, Chaetophractus villosus, C. vellerosus and Zaedyus pichiy, were studied. The bulla was observed to be morphologically similar and evidently hypertrophied in the three species. The degree of hypertrophy was higher in C. vellerosus and C. villosus than in Z pichiy. By means of ANCOVA it was clear that, although C. villosus has a bigger skull than C. vellerosus, the relative size of their tympanic cavity was similar in both species. On the other hand, the skull of C. vellerosus and Z pichiy are of similar size but the bulla was relatively shorter in the later
author	Squarcia,Silvia Margarita Sidorkewicj,Nora Silvia Casanave,Emma Beatriz
author_facet	Squarcia,Silvia Margarita Sidorkewicj,Nora Silvia Casanave,Emma Beatriz
author_sort	Squarcia,Silvia Margarita
title	The Hypertrophy of the Tympanic Bulla in Three Species of Dasypodids (Mammalia, Xenarthra) from Argentina
title_short	The Hypertrophy of the Tympanic Bulla in Three Species of Dasypodids (Mammalia, Xenarthra) from Argentina
title_full	The Hypertrophy of the Tympanic Bulla in Three Species of Dasypodids (Mammalia, Xenarthra) from Argentina
title_fullStr	The Hypertrophy of the Tympanic Bulla in Three Species of Dasypodids (Mammalia, Xenarthra) from Argentina
title_full_unstemmed	The Hypertrophy of the Tympanic Bulla in Three Species of Dasypodids (Mammalia, Xenarthra) from Argentina
title_sort	hypertrophy of the tympanic bulla in three species of dasypodids (mammalia, xenarthra) from argentina
publisher	Sociedad Chilena de Anatomía
publishDate	2007
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022007000300021
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The Hypertrophy of the Tympanic Bulla in Three Species of Dasypodids (Mammalia, Xenarthra) from Argentina

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