DERMOPHIS MEXICANUS PDF

Digital Morphology account of the Mexican Burrowing Caecilian, Dermophis mexicanus, featuring CT-generated animations of the skull. History of Classification. Dermophis mexicanus was originally classified as Siphonops mexicanus in (Dumeril, ). It was reclassified as Amphisbaena. Family, Caeciliidae Rafinesque, – Caecilians. Genus, Dermophis Peters, – Mexican caecilians. Species, Dermophis mexicanus (Duméril and Bibron, .

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The upper mexivanus is dark grey and the under surface pale grey with darker markings on the annuli. All caecilians have a unique chemosensory organ located on the head called the tentacle. Johns Hopkins, Baltimore, pp. The large interhyoideus muscle and the elongate retroarticular process are modified to function in jaw closing. Embed this Arkive thumbnail link “portlet” by copying and pasting the code below.

Mexican burrowing caecilian

Sagalla caecilian Boulengerula niedeni. For more information on the assessment of the conservation status of the world’s amphibians, please see the amphibian portal on the IUCN Red List of Threatened Species at www.

To date, the project has involved the input of more than herpetologists from around the world. It has several disjunct populations, and in areas where it used to be abundant it now seems to be less common, and the locations in which it is found seem to be fewer in number. Wildscreen With – Tom Hooker: Caecilians are the least studied group of amphibians because most species spend the majority of their lives underground or underwater Pough et al.

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Terms of Use – The displayed portlet may be used as a link from your website to Arkive’s online content for medicanus, scientific, conservation or educational purposes only. The lower eermophis has a retroarticular process extending one-third of the total jaw length, and an articulation that restricts anteroposterior movements.

Dorsal view Lateral view Ventral view. Help demophis share the wonders of the natural world. Dermophis mexicanus is a viviparous species with an 11 month gestation period. In derived species of caecilians such as Dermophis mexicanus and Typhlonectes natansthe nasals and premaxillae also fuse dermophus form the nasopremaxilla Duellman and Trueb, ; Pough et al.

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Oxford University Press is a department of the University of Oxford. Females reach sexually maturity at two years of age and males at three years. Team WILD, an elite squadron of science superheroes, needs your help! They then shed their larval teeth and rapidly grow a set of adult ones. The skull is completely roofed except for openings for the eyes, nares, and tentacle.

Digimorph – Dermophis mexicanus (Mexican Burrowing Caecilian)

The Mexican burrowing caecilian Dermophis mexicanus is a fossorial species that ranges from southern Mexico to northwest Colombia Duellman and Derophis, Don’t already have an Oxford Academic account? The longus capitis muscles appear to act to depress the cranium at the cranio-vertebral joint, a motion that occurs simultaneously with maximum jaw closing.

X Close Image credit. If you originally registered with a username please use that to sign in. Dermophis mexicanusMexican Burrowing Caecilian Dr. Funding by NSF Comments. GymnophionaDermophisfeedingelectromyographyjaw adduction. Share this image — Hide sharing options. The latter two muscles appear to have greater importance for feeding in Dermophis than do the temporal adductors, and the evolution of this specialized arrangement may be related to the demands for a reduced cross-sectional area of the head in these burrowing vertebrates.

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The head has a pointed snout, a single row of teeth in the lower jaw, and two vestigial eyes covered with skin, with a pair of protrusible tentacles between the eyes and the nostrils. Accessed December 31, at http: Periah peak caecilian Gegeneophis carnosus.

Most users should sign in with their email address. It is found in Mexico and Central America, where it burrows under leaf litter and plant debris.

Rodents of Unusual Size communitycoypudocumentaryecosystemenvironmentfilmmakerfilmmakinginvasiveinvasive speciesrodentsUSAWetlandswildlife Monday 24 September Wildscreen With – Tom Hooker: To purchase short term access, please sign in to your Oxford Academic account above.

Rodents of Unusual Size. Development of the skull of Dermophis mexicanus Amphibia: AfricachimpanzeeconservationfilmIn the Fieldlab chimpsLiberiaPrimatesprimatologyrehabilitationtrue storywildlifewildlife filmWildscreen Festival. Specimen Photos Dorsal view Lateral view Ventral view.

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Additionally, all the occipital elements and the paraspheniod are fused into a single element called the Os basale. Share on Facebook Tweet Send email. Authentication This information is awaiting authentication by a species expert, and will be updated as soon as possible.

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