IT has long been known, in a general way, that the deer inhabiting the lowlands of Louisiana is distinctly different from the related races to the north and east. As long ago as I 82o, Geoffroy Saint-Hilaire and Cuvier 1 figured a doe in summer pelage under the name of "Biche du Cerf de la Louisiane." They (lid not, however, consider it different from their "Ce'rvus viginizanus " ( Odocwlus vzrh inianus viginuianus Bodd.2). Through the kindness of the museum authorities, I have been enabled to examine the series of deer skins and skulls in the Museum of Comparative Zoology. In the Bangs collection are four skins and skulls of deer from Mer Rouge, Louisiana. These represent a well-marked race, which may be known as