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

Autores
Di Pietro, Diego Omar; Alcalde, Leandro; Williams, Jorge Daniel
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
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.
Facultad de Ciencias Naturales y Museo
Instituto de Limnología "Dr. Raúl A. Ringuelet"
Materia
Ciencias Naturales
Adult chondrocranium
Hyolaringeal cartilages
Serpentes
Hydropsini
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/102666
Acceder
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network_name_str SEDICI (UNLP)
spelling Nasal cartilages, hyobranchial apparatus, larynx, and glottal tubes in four species of <i>Hydropsini</i> (Serpentes: Dipsadidae: Xenodontinae)Di Pietro, Diego OmarAlcalde, LeandroWilliams, Jorge DanielCiencias NaturalesAdult chondrocraniumHyolaringeal cartilagesSerpentesHydropsiniTribe 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.Facultad de Ciencias Naturales y MuseoInstituto de Limnología "Dr. Raúl A. Ringuelet"2014-04-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf103-111http://sedici.unlp.edu.ar/handle/10915/102666enginfo:eu-repo/semantics/altIdentifier/url/https://ri.conicet.gov.ar/11336/22225info:eu-repo/semantics/altIdentifier/url/http://www.senckenberg.de/files/content/forschung/publikationen/vertebratezoology/vz64-1/08_vertebrate_zoology_64-1_di-pietro_103-111.pdfinfo:eu-repo/semantics/altIdentifier/issn/1864-5755info:eu-repo/semantics/altIdentifier/hdl/11336/22225info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-03T10:52:11Zoai:sedici.unlp.edu.ar:10915/102666Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 10:52:11.43SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Nasal cartilages, hyobranchial apparatus, larynx, and glottal tubes in four species of <i>Hydropsini</i> (Serpentes: Dipsadidae: Xenodontinae)
title Nasal cartilages, hyobranchial apparatus, larynx, and glottal tubes in four species of <i>Hydropsini</i> (Serpentes: Dipsadidae: Xenodontinae)
spellingShingle Nasal cartilages, hyobranchial apparatus, larynx, and glottal tubes in four species of <i>Hydropsini</i> (Serpentes: Dipsadidae: Xenodontinae)
Di Pietro, Diego Omar
Ciencias Naturales
Adult chondrocranium
Hyolaringeal cartilages
Serpentes
Hydropsini
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)
dc.creator.none.fl_str_mv Di Pietro, Diego Omar
Alcalde, Leandro
Williams, Jorge Daniel
author Di Pietro, Diego Omar
author_facet Di Pietro, Diego Omar
Alcalde, Leandro
Williams, Jorge Daniel
author_role author
author2 Alcalde, Leandro
Williams, Jorge Daniel
author2_role author
author
dc.subject.none.fl_str_mv Ciencias Naturales
Adult chondrocranium
Hyolaringeal cartilages
Serpentes
Hydropsini
topic Ciencias Naturales
Adult chondrocranium
Hyolaringeal cartilages
Serpentes
Hydropsini
dc.description.none.fl_txt_mv 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.
Facultad de Ciencias Naturales y Museo
Instituto de Limnología "Dr. Raúl A. Ringuelet"
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.
publishDate 2014
dc.date.none.fl_str_mv 2014-04-30
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/102666
url http://sedici.unlp.edu.ar/handle/10915/102666
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://ri.conicet.gov.ar/11336/22225
info:eu-repo/semantics/altIdentifier/url/http://www.senckenberg.de/files/content/forschung/publikationen/vertebratezoology/vz64-1/08_vertebrate_zoology_64-1_di-pietro_103-111.pdf
info:eu-repo/semantics/altIdentifier/issn/1864-5755
info:eu-repo/semantics/altIdentifier/hdl/11336/22225
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
103-111
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