| (t2ag3)n telomeric sequence hybridization suggestive of centric fusion in karyotype marsupials evolution. | it has been suggested that the karyotype of the marsupials derived from a low diploid number (2n = 14) which originated, through fissions of biarmed chromosomes, the karyotypes with a higher 2n. the telomeric sequence (t2ag3)n was in situ hybridized to the chromosomes of gracilinanus microtarsus and g. emiliae, micoureus demerarae and marmosa murina, species with 2n = 14, in monodelphis sp., m. domestica, m. kunsi and m. brevicaudata with 2n = 18, and in lutreolina crassicaudata, didelphis albiv ... | 2000 | 11294606 |
| [diversity, natural history and conservation of mammals from san vito de coto brus, costa rica]. | although costa rica has been biologically well studied, few areas have complete mammal inventories, which are essential for ecological studies and conservation. the san vito region is considered among the most important for scientific research in the country because of the presence of the wilson botanical garden and las cruces. however, the knowledge of its mammalian fauna is incomplete. we extensively studied the mammals of san vito, compiled a checklist, and evaluated its composition, relative ... | 2006 | 18457190 |
| evolution of scapula size and shape in didelphid marsupials (didelphimorphia: didelphidae). | the new world family didelphidae, the basal lineage within marsupials, is commonly viewed as morphologically conservative, yet includes aquatic, terrestrial, scansorial, and arboreal species. here, i quantitatively estimated the existing variability in size and shape of the didelphidae scapula (1076 specimens from 56 species) using geometric morphometrics, and compared size and shape differences to evolutionary and ecologic distances. i found considerable variation in the scapula morphology, mos ... | 2009 | 19453730 |
| morphological diversity in digital skin microstructure of didelphid marsupials. | the purpose of this study was to investigate how didelphid marsupials have diversified in morphology of their claws and digital pads as they evolved different foraging preferences such as terrestrial, aquatic, and arboreal feeding behaviours. both arboreal and more terrestrial didelphids have papillary ridges on the digital pads of the fore and hindfoot. in contrast, the papillary ridges on the pedal digital skin of the water opossum chironectes minimus have been replaced by nonoverlapping, thic ... | 2001 | 11465861 |
| mature paragonimus amazonicus first found from a water opossum in peru. | | 1974 | 4833867 |
| comparative limb myology of two opossums, didelphis and chironectes. | a comparative study of limb morphology indicates that the osteological and myological differences between didelphis virginiana, the virginia opossum, and chironectes minimus, the water opossum, may be associated in chironectes with decreased resistance to water and increased mechanical advantage of its muscles for increased force. limb myology is described and a synonymy of terms is applied to the musculature of these two opossums. | 1981 | 30111008 |