| on the mammals collected by friedrich sellow in brazil and uruguay (1814-1831), with special reference to the types and their provenance. | from 1814 to 1831, the prussian naturalist friedrich sellow collected 263 mammals in brazil and uruguay. upon receiving the specimens, the curator of the berlin zoological museum, martin lichtenstein, removed the original labels and replaced with ones containing more generalized locations. as a consequence, several type specimens have now dubious type localities. we examined these types as well as geographically restricted mammals collected by sellow. in some cases, there are inconsistencies bet ... | 2017 | 28187657 |
| the karyotype of the south american rodent kunsia tomentosus (lichtenstein, 1830). | chromosomal analysis of kunsia tomentosus showed a karyotype with 2n = 44, constituted by 21 pairs of acrocentric autosomes. the x chromosome was a median acrocentric, between pairs 3 and 4 in size, and the y chromosome was a small acrocentric (between pairs 19 and 20). five pairs with nucleolus organizer regions were located at the short arms. c-banding showed blocks of constitutive heterochromatin occurring in the centromeres of all autosomes and of the x chromosome. the y chromosome was entir ... | 1999 | 10533268 |