The purpose of this research is to contribute to knowledge of taxonomy, ecological and local importance of freshwater mollusks inhabiting the Atlangatepec Reservoir, Tlaxcala. Four gastropoda pulmonata families were registered end represented by Physella sp [Physidae]; Planorbella trivolvis Say and…

Through the use of line transects on boats, contributions to the knowledge of vaquita Phocoena sinus distribution were made. Sightings made confirm the presence of vaquita near Rocas Consag. Stranded individuals were collected for anatomical, morphometric, and age estimation studies.…

The mammalian fauna of the State of Mexico is included in 20 families 61 genera and 103 species. Here we make a retrospective analysis and present an updated taxonomic checklist of the mammals of the state. In the list, the…