Hemipenes in females of the Mexican viviparous lizard Barisia imbricata ( Squamata: Anguidae): an example of heterochrony in sexual development. External character data from members of the Barisia imbricata complex support the validity of Tihen’s (b) arrangement, with two species (B. levicollis. PDF | Barisia imbricata imbricata is an endemic anguid lizard living in the highlands of central Mexico, mainly in the Trans-Mexican Volcanic.

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Web pages and scripting Jiri Hosek. Evolutionary speciation in the alligator lizards of the genus Barisia. Tlalnepantla UNAM, pp.

A conservation reassessment of the reptiles of Mexico based on the EVS measure. Mesoamerican Bariisa 4 4: Changes in the timing or sequence of development events are known as heterochrony. List of reptiles of Morelos, Mexico, and their distribution in relation to vegetation types. On a collection of batrachians and reptiles from Mount Orizaba, Mexico, with descriptions of two new species.

Amphibians and reptiles of the Seese and Mocino expedition: We describe the pattern of sexual development in the viviparous Mexican lizard Barisia imbricata and report heterochrony in the regression imbrocata hemipenes in this lizard. Tweet Please submit feedback about this entry to the curator.


IUCN Red List of Threatened Species

The herpetofauna of Oaxaca, Mexico: Anfibios y Reptiles; pp. Descriptiones et icones amphibiorum. Gerrhonotine lizards recently added to the American Museum collection, with further revisions of the genus Abronia.

Can you confirm these amateur observations of Barisia imbricata? Journal of Zoological Systematics and Evolutionary Research 43 3: The herpetofauna of the Mexican State of Aguascalientes. Phylogeny and evolution of dorsal pattern in the Mexican endemic lizard genus Barisia Anguidae: Courier Forschungsinstitut Senckenberg Tenth contribution to the herpetology of Tropical America.

Several neonates were sacrificed and processed to establish gonadal histology and the young of the remaining litters were maintained in captivity to observe the fate of the hemipenes in both sexes.

Developmental asynchrony and antagonism of sex determination pathways in a lizard with temperature-induced sex reversal.

Barisia imbricata

Reptarium Bafisia Reptile Database. Acta Zoologica Mexicana n. All neonates were sexed by eversion of hemipenes and some of their body characteristics were recorded. Amphibians and reptiles of the state of Hidalgo, Mexico. Rediscovery of a Mexican lizard, Barisia imbricata planifrons Bocourt.

Catalogue of the slender-tongued saurians, with descriptions of many new genera and species.


Barisia – Wikipedia

The generic name was derived from the Greek word barys, meaning “heavy,” apparently in reference to the robust body of B.

American Museum Novitates We think that the delayed regression of the hemipenes reflects evolutionary differences among reptiles and may be an indication of a stage in the evolutionary process of this species.

Description of new genera and species of North American lizards in the museum of the Smithsonian Institution. Isis imbgicata Oken iimbricata 4: Southwestern Naturalist 39 2: Mocquard,Etudes sur les reptiles, p.

We collected gestating females; some lizards were subjected to partial hysterectomy and the embryos were processed using routine histological technique to assess gonadal development; the remaining embryos were used to assess the development of hemipenes. Scientific Reports, 8 1- get paper here Wiegmann,A. Check Imbricaya 9 4: Notes on amphibians and reptiles of Michoacan, Mexico.