. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. WOOD AND PATTERSON : OLIGOCENE RODENTS OF PATAGONIA 359 Diagnosis. As for the genus; for measurements see Table 7. The teeth are evidently not typically brachyodont, as Loomis believed, but are fairly well along the road toward high crowns. They appear low, however, due to the excessive wear that they have undergone. This interpretation is based on the fact that cement is present, that the enamel is interrupted on the anterior and lingual sides of the teeth, and that there is a con- siderable difference in the crown h
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. WOOD AND PATTERSON : OLIGOCENE RODENTS OF PATAGONIA 359 Diagnosis. As for the genus; for measurements see Table 7. The teeth are evidently not typically brachyodont, as Loomis believed, but are fairly well along the road toward high crowns. They appear low, however, due to the excessive wear that they have undergone. This interpretation is based on the fact that cement is present, that the enamel is interrupted on the anterior and lingual sides of the teeth, and that there is a con- siderable difference in the crown height of Mi and P4, on the one hand, and M3, on the other. In many respects, this form appears to us to be one of the more specialized of the Deseadan i-odents. The hypoflexids are directed just posterad of the meso- A. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
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