Biomedical subjects
Publications and source records attributed to D A Meritt.
Spermatozoa from the ductus deferens of a naked-tail armadillo, Cabassous unicinctus, were arranged in rouleaux. The sperm heads were wafer-thin, with the acrosome and nucleus flattened together. Dense subacrosomal material in the equatorial segment of the acrosomal region was present on one surface but not on the other.
The karyotypes of three additional species of Edentata are described. The differences in karyotype between Tolypeutes matacus (2n = 38), and other species of armadillo is remarkable. Three species of Euphractini were compared through G- and C-banding patterns. Chaetophractus villosus appears to be much closer to Zaedyus pichiy than suggested by taxonomy. On the other hand, Tamandua tetradactyla and Tamandua longicaudata, two different species of anteater, possess the same karyotypes. The presence of an unusual Y-chromosome in Choloepus hoffmanni may be responsible for the peculiar sex-ratio reported in this species.
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Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.