Popis: |
This study is to assess the karyology of several small mammalian taxa in central Argentina, using chromosomes to assist in identifying species, and to provide new chromosomal data for several species from geographic áreas where studies have not been done. Specimens of small mammals, representing 24 species belonging to 6 families, were live-trapped in 26 localities in 6 provinces of central Argentina. Specimens were subjected to the standard in vivo procedure of colchicine mitotic arrest for obtaining chromosomes from bone marrow. Chromosome slides were observed and photographed and the diploid number and morphology determined for each specimen. |