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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Extant caecilians comprise 33 genera and species that may be aquatic, terrestrial, or fossorial. Don’t have an account?
Mexican burrowing caecilian – Wikipedia
To cite mexxicanus page: Specimen Photos Dorsal view Lateral view Ventral view. Dermophis mexicanus is a viviparous species with an 11 month gestation period. Aleku caecilian Sylvacaecilia grandisonae.
Don’t already have an Oxford Academic account? Around a hundred transverse annular folds in the skin give the appearance of segments.
The Mexican burrowing caecilian Dermophis mexicanus is a species of limbless amphibian in the family Dermophiidae. Gymnophiona with comments on skull kinesis and amphibian relationships. Specialized fetal teeth in the young are used to stimulate cells in the oviduct walls to produce secretions Pough et al.
All caecilians have mexicansu unique chemosensory organ located on the head called the tentacle.
Fertilisation is internal and up to 16 developing larvae subsist on the yolks of their eggs mexicanjs three months. 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. The skull is completely roofed except for openings for the eyes, nares, and tentacle. Sign up to our newsletter Get the latest wild news direct to your inbox.
Morphology and function of the feeding apparatus in Dermophis mexicanus Amphibia: Help us share the wonders of the natural world. Reproduction in caecilians is oviparous or viviparous and fertilization is internal. Cannatella’s grant, and funding for additional image processing was provided by a National Science Foundation Digital Libraries Initiative grant to Dr.
However, some species have an open temporal region to facilitate kinetic movement of the skull, a trait known as zygokrotaphy. If you originally registered with a username please use that to sign in. Muscles in the first of these sites mexicanuz comparable to the jaw adductors of other vertebrates, while those in the second two represent morphological and functional departures. Development of the skull of Dermophis mexicanus Amphibia: The head has a pointed snout, a single row of teeth in the lower jaw, and detmophis vestigial eyes covered with skin, with a pair of protrusible tentacles between the eyes and the nostrils.
Mexican burrowing caecilian
Citing articles via Web of Science Purchase Subscription prices and ordering Short-term Access To purchase short term access, please sign in to your Oxford Academic account above. In derived species of caecilians such as Dermophis mexicanus and Typhlonectes natansthe nasals and premaxillae mexicanks fuse to form the nasopremaxilla Duellman and Trueb, ; Pough et al. To purchase short term access, please sign in to your Oxford Academic account above.
The morphology and mechanics of feeding in Dermophis mexicanus were studied using descriptive anatomical, cinematographic and electromyographic approaches.
Mexican Caecilian (Dermophis mexicanus) ·
Funding for scanning and image processing was provided by Dr. Wildscreen With – Tom Hooker: International Union for Conservation of Nature. Each slice is 0. Caecilians differ from other amphibians in having a compact skull, a trait known as stegokrotaphy. Accessed December 31, at http: Blog Friday 05 October Wildscreen With: AfricachimpanzeeconservationfilmIn the Fieldlab chimpsLiberiaPrimatesprimatologyrehabilitationtrue storywildlifewildlife filmWildscreen Festival. Please donate to Arkive Help us share the wonders of the natural world.
Placodontia from Guanling, Guizhou, China.
The Mexican burrowing caecilian is found in MexicoGuatemalaEl SalvadorHondurasNicaraguaand possibly Belizemostly on the Atlantic side, but also in some isolated parts of the Pacific slope.
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