Compared Morphology of the Cephalic Musculature in Five Species of Genus Urotrygon (Chondrichthyes: Urolophidae)

This work aims to describe the morphology of dorsal and ventral cephalic musculature in five species of genus Urotrygon. Muscular differences were observed, mainly in the development level. Muscles showing certain degree of variation in the dorsal region were the cucullaris and the ethmoideo-parethm...

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Autores principales:	González Isáis,Mónica, Montes Domínguez,Héctor Marcos
Lenguaje:	English
Publicado:	Sociedad Chilena de Anatomía 2016
Materias:	Elasmobranchii Batoidei Urotrygon cephalic musculature
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000100001
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spelling	oai:scielo:S0717-950220160001000012016-05-02Compared Morphology of the Cephalic Musculature in Five Species of Genus Urotrygon (Chondrichthyes: Urolophidae)González Isáis,MónicaMontes Domínguez,Héctor Marcos Elasmobranchii Batoidei Urotrygon cephalic musculature This work aims to describe the morphology of dorsal and ventral cephalic musculature in five species of genus Urotrygon. Muscular differences were observed, mainly in the development level. Muscles showing certain degree of variation in the dorsal region were the cucullaris and the ethmoideo-parethmoidalis. In ventral view, higher variation was observed. Muscles showing differences were the depressor rostri, the depressor hyomandibularis, the preorbitalis medial, the coracohioideus, and the depressor mandibularis. Urotrygon aspidurus was the species with the largest differences, as it has no mandibular depressor, and the rostral depressor is quite developed. The shape and arrangement of cephalic musculature in Urotrygon is similar to that reported for genus Urolophus and Dasyatis, however, it is different from that of most specialized myliobatoids.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.34 n.1 20162016-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000100001en10.4067/S0717-95022016000100001
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Elasmobranchii Batoidei Urotrygon cephalic musculature
spellingShingle	Elasmobranchii Batoidei Urotrygon cephalic musculature González Isáis,Mónica Montes Domínguez,Héctor Marcos Compared Morphology of the Cephalic Musculature in Five Species of Genus Urotrygon (Chondrichthyes: Urolophidae)
description	This work aims to describe the morphology of dorsal and ventral cephalic musculature in five species of genus Urotrygon. Muscular differences were observed, mainly in the development level. Muscles showing certain degree of variation in the dorsal region were the cucullaris and the ethmoideo-parethmoidalis. In ventral view, higher variation was observed. Muscles showing differences were the depressor rostri, the depressor hyomandibularis, the preorbitalis medial, the coracohioideus, and the depressor mandibularis. Urotrygon aspidurus was the species with the largest differences, as it has no mandibular depressor, and the rostral depressor is quite developed. The shape and arrangement of cephalic musculature in Urotrygon is similar to that reported for genus Urolophus and Dasyatis, however, it is different from that of most specialized myliobatoids.
author	González Isáis,Mónica Montes Domínguez,Héctor Marcos
author_facet	González Isáis,Mónica Montes Domínguez,Héctor Marcos
author_sort	González Isáis,Mónica
title	Compared Morphology of the Cephalic Musculature in Five Species of Genus Urotrygon (Chondrichthyes: Urolophidae)
title_short	Compared Morphology of the Cephalic Musculature in Five Species of Genus Urotrygon (Chondrichthyes: Urolophidae)
title_full	Compared Morphology of the Cephalic Musculature in Five Species of Genus Urotrygon (Chondrichthyes: Urolophidae)
title_fullStr	Compared Morphology of the Cephalic Musculature in Five Species of Genus Urotrygon (Chondrichthyes: Urolophidae)
title_full_unstemmed	Compared Morphology of the Cephalic Musculature in Five Species of Genus Urotrygon (Chondrichthyes: Urolophidae)
title_sort	compared morphology of the cephalic musculature in five species of genus urotrygon (chondrichthyes: urolophidae)
publisher	Sociedad Chilena de Anatomía
publishDate	2016
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000100001
work_keys_str_mv	AT gonzalezisaismonica comparedmorphologyofthecephalicmusculatureinfivespeciesofgenusurotrygonchondrichthyesurolophidae AT montesdominguezhectormarcos comparedmorphologyofthecephalicmusculatureinfivespeciesofgenusurotrygonchondrichthyesurolophidae
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Compared Morphology of the Cephalic Musculature in Five Species of Genus Urotrygon (Chondrichthyes: Urolophidae)

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