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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Funding by NSF Comments.
IUCN Red List of Threatened Species
Most users should sign in with their email address. Lindsey Paretti – Blood Island. Johns Hopkins, Baltimore, pp. Jennifer Olori Publication Date: Placodontia from Guanling, Guizhou, China.
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. Sign In Forgot password?
Tapalcua videos, photos and facts – Dermophis mexicanus | Arkive
All caecilians have a unique chemosensory organ located on the head called the tentacle. Gymnophionaa critical review. Specimen Photos Dorsal view Lateral view Ventral view. Caecilians are the least studied dermolhis of amphibians because most species spend the majority of their lives underground or underwater Pough et al.
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.
Dorsal view Lateral view Ventral view. Related articles in Web of Science Google Scholar. The morphology and mechanics of feeding in Dermophis mexicanus were studied using descriptive anatomical, cinematographic and electromyographic approaches.
Muscles from three anatomically distinct sites, the temporal fossa, the lateral surface of the neck, and the subvertebral region, act to execute the bite during feeding on earthworms.
Most oviparous species have aquatic larvae but direct development occurs in some terrestrial species. They are distributed throughout the tropics, although they are not found in Madagascar, central Africa, or the Oceanic region.
This xermophis was collected from Depto. Litters average between four and eleven young. To cite this page: Journal of Morphology 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 mexicansu in these burrowing vertebrates.
Funding for scanning and image processing was provided by Dr.
Purchase Subscription prices and ordering Short-term Access To purchase short term access, please sign in to your Oxford Academic account above. 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. Development of the skull of Dermophis mexicanus Amphibia: Lindsey Mexianus – Blood Island AfricachimpanzeeconservationfilmIn the Fieldlab chimpsLiberiaPrimatesprimatologyrehabilitationtrue storywildlifewildlife filmWildscreen Festival.
Additionally, all the occipital elements and the paraspheniod are fused into a single element called the Os basale. The body is elongated and there are no limbs. Email alerts New issue alert.
Adults range from mm to mm in length Grzimek, and their diet consists of termites, crickets, snails, slugs, and earthworms Jared et al. The Mexican burrowing caecilian Dermophis mexicanus is a species of limbless amphibian in the family Dermophiidae. In derived species of caecilians such as Dermophis mexicanus and Typhlonectes natansthe nasals and premaxillae also fuse to form the nasopremaxilla Duellman and Trueb, ; Pough mexivanus al.
Extant caecilians comprise 33 genera and species that may be aquatic, terrestrial, or fossorial. To purchase short term access, please sign in to your Oxford Academic account above. Retrieved from ” https: AfricachimpanzeeconservationfilmIn the Fieldlab chimpsLiberia dermophsi, Primatesprimatologyrehabilitationtrue storywildlifewildlife filmWildscreen Festival.
This caecilian is viviparous. Morphology and function of the feeding apparatus in Dermophis mexicanus Amphibia: It may NOT be used within Apps.
In viviparous species, embryos are nourished by secretions from oviduct walls of the female. Dermiphis the classification and phylogeny of caecilians Amphibia: However, some species have an open temporal region to facilitate kinetic movement of the skull, a trait known as zygokrotaphy.
Its natural habitats are subtropical or tropical dry forestsmoist lowland forests, moist montane forestsplantationsrural gardens, and heavily degraded former forests.
Comparative Biochemistry and Physiology Part A If you originally registered mexucanus a username please use that to sign in. Around a hundred transverse annular folds in the skin give the appearance of segments. Gymnophiona with comments on skull kinesis and amphibian relationships. They then shed their larval teeth and rapidly grow a set of adult ones.
Mexican burrowing caecilian
X Close Link to this photo Embed this Arkive thumbnail link “portlet” dermophi copying dermo;his pasting the code below. It may be persecuted in some locations because it superficially looks like a snake.
You do not currently have access to this article. The tentacle exits the skull through the tentacular foramen or groove located between the nares and orbit Pough et al. Dermophis mexicanus is a viviparous species with an 11 month gestation period. It is fossorial, living in damp, loose soil and under leaf litter, logs, and plant debris, often in banana and coffee plantations.