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 species. They are, moreover, not peculiar to the Lemurs, but exist in the Squirrel, in the Domestic Cat, in the Leopard, in Bassaricyon, the Otter, various Marsupials, and doubtless in many mammals which require a tactile organ, for these hairs are associated with a large branch of the radial nerve.



The Lemurs have at the present time a most remarkable distribution. There are altogether about fifty species, referable to seventeen genera. Thirty-six species are confined to Madagascar