Nasal cartilages, hyobranchial apparatus, larynx, and glottal tubes in four species of <i>Hydropsini</i> (Serpentes: Dipsadidae: Xenodontinae)

Tribe Hydropsini (Serpentes: Dipsadidae: Xenodontinae) consists of three genera of aquatic snakes, Helicops, Hydrops, and Pseudoeryx, in which cartilaginous cranial features have been poorly studied. We here describe the nasal cartilages, hyobranchial apparatus, larynx, and glottal tubes in four r...

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Detalles Bibliográficos
Autores principales:	Di Pietro, Diego Omar, Alcalde, Leandro, Williams, Jorge Daniel
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2014
Materias:	Ciencias Naturales Adult chondrocranium Hyolaringeal cartilages Serpentes Hydropsini
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/102666 https://ri.conicet.gov.ar/11336/22225 http://www.senckenberg.de/files/content/forschung/publikationen/vertebratezoology/vz64-1/08_vertebrate_zoology_64-1_di-pietro_103-111.pdf
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-102666
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Ciencias Naturales Adult chondrocranium Hyolaringeal cartilages Serpentes Hydropsini
spellingShingle	Ciencias Naturales Adult chondrocranium Hyolaringeal cartilages Serpentes Hydropsini Di Pietro, Diego Omar Alcalde, Leandro Williams, Jorge Daniel Nasal cartilages, hyobranchial apparatus, larynx, and glottal tubes in four species of <i>Hydropsini</i> (Serpentes: Dipsadidae: Xenodontinae)
topic_facet	Ciencias Naturales Adult chondrocranium Hyolaringeal cartilages Serpentes Hydropsini
description	Tribe Hydropsini (Serpentes: Dipsadidae: Xenodontinae) consists of three genera of aquatic snakes, Helicops, Hydrops, and Pseudoeryx, in which cartilaginous cranial features have been poorly studied. We here describe the nasal cartilages, hyobranchial apparatus, larynx, and glottal tubes in four representative Hydropsini species, compare them with species from other Dipsadidae tribes, and discuss our results in the context of the adaptation to the aquatic and fossorial habit. The studied species possess two nasal features that deviate from the pattern of nasal cartilages known in other aletinophidian and caenophidian snakes: (1) a cartilaginous connection between the lamina transversalis anterior and the concha of the Jacobson´s organ, and (2) a small rostral projection of the planum anteorbitale, which probably represents a reduced anterior maxillary process. Two putative synapomorphic features may be supporting the monophyly of Hydropsini: (1) a short inferior median eminence of the cricoid cartilage, and (2) a large processus entoglossus of the hyobranchial apparatus. The second feature also occurs in other snakes, such as the aquatic Farancia abacura (Dipsadidae: incertae sedis), the semi-fossorial Oxyrhopus rhombifer (Xenodontinae: Pseudoboini), and the fossorial Phalotris bilineatus (Xenodontinae: Elapomorphini). This feature may represent a convergent cranial adaptation between aquatic and fossorial snakes. Similarly, the short inferior median eminence of the cricoid cartilage, which also occurs in Farancia abacura, may represent a convergent adaptation to the fully aquatic habit in these species.
format	Articulo Articulo
author	Di Pietro, Diego Omar Alcalde, Leandro Williams, Jorge Daniel
author_facet	Di Pietro, Diego Omar Alcalde, Leandro Williams, Jorge Daniel
author_sort	Di Pietro, Diego Omar
title	Nasal cartilages, hyobranchial apparatus, larynx, and glottal tubes in four species of <i>Hydropsini</i> (Serpentes: Dipsadidae: Xenodontinae)
title_short	Nasal cartilages, hyobranchial apparatus, larynx, and glottal tubes in four species of <i>Hydropsini</i> (Serpentes: Dipsadidae: Xenodontinae)
title_full	Nasal cartilages, hyobranchial apparatus, larynx, and glottal tubes in four species of <i>Hydropsini</i> (Serpentes: Dipsadidae: Xenodontinae)
title_fullStr	Nasal cartilages, hyobranchial apparatus, larynx, and glottal tubes in four species of <i>Hydropsini</i> (Serpentes: Dipsadidae: Xenodontinae)
title_full_unstemmed	Nasal cartilages, hyobranchial apparatus, larynx, and glottal tubes in four species of <i>Hydropsini</i> (Serpentes: Dipsadidae: Xenodontinae)
title_sort	nasal cartilages, hyobranchial apparatus, larynx, and glottal tubes in four species of <i>hydropsini</i> (serpentes: dipsadidae: xenodontinae)
publishDate	2014
url	http://sedici.unlp.edu.ar/handle/10915/102666 https://ri.conicet.gov.ar/11336/22225 http://www.senckenberg.de/files/content/forschung/publikationen/vertebratezoology/vz64-1/08_vertebrate_zoology_64-1_di-pietro_103-111.pdf
work_keys_str_mv	AT dipietrodiegoomar nasalcartilageshyobranchialapparatuslarynxandglottaltubesinfourspeciesofihydropsiniiserpentesdipsadidaexenodontinae AT alcaldeleandro nasalcartilageshyobranchialapparatuslarynxandglottaltubesinfourspeciesofihydropsiniiserpentesdipsadidaexenodontinae AT williamsjorgedaniel nasalcartilageshyobranchialapparatuslarynxandglottaltubesinfourspeciesofihydropsiniiserpentesdipsadidaexenodontinae
bdutipo_str	Repositorios
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Nasal cartilages, hyobranchial apparatus, larynx, and glottal tubes in four species of <i>Hydropsini</i> (Serpentes: Dipsadidae: Xenodontinae)

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