It is to Ximenes, and afterwards to Hernandes, that we owe the first knowledge of this animal, which they have indicated under the Mexican name of _hoitztlacuatzin_. The _tlacuatzin_ is the opossum and the _hoitztlacuatzin_ should be translated the _bristly_ or _spinous opossum_. This name has been misapplied, for these animals resemble each other very little. Marcgrave has not adopted this Mexican denomination, but calls this animal _cuandu_. The only thing we can reproach Marcgrave with, is his not having known, that the cuandu of Brasil was the same animal as the hoitztlacuatzin of Mexico, especially as his description and figure agree with those of Hernandes; and as Laët, the editor and commentator of Marcgrave expressly says, that the spiny tlacuatzin of Ximenes, and the cuandu, are probably the same animal. By collecting the scattered accounts of travellers there appears to be two varieties of these animals, which the naturalists, after Piso, have inserted in their lists as two different species, namely, the great and the little coendou: but what immediately proves the error, or negligence of Piso, is, that although he describes these coendous in two separate and distinct articles, and seems to look on them as different species, he represents both by the same figure: which, we think, sufficient foundation to pronounce them the same animal. There are likewise other naturalists who have not only made two species of the great and little coendou but have also separated the hoitztlacuatzin, and given all three as different animals. I own, indeed, that although it is probable, the coendou and the hoitztlacuatzin are the same animal, yet this identity is not so certain as that of the great and little coendou. However that may be, the coendou is not the porcupine. He is much smaller; his head and muzzle shorter; he has no tuft on its head nor is his upper lip divided; his quills are proportionally shorter and much finer; his tail is long, and that of the porcupine very short: he is carnivorous rather than frugivorous, and endeavours to surprize birds, small animals, and poultry, while the porcupine only feeds upon herbs, roots, and fruits. He sleeps all the day like the hedge-hog, and only stirs out in the night: he climbs up trees, and hangs on branches by his tail. All travellers agree, that his flesh is very good eating. He is easily tamed, and commonly lives in high places. These animals are found over all America, from Brasil and Guiana, to Louisiana and the southern parts of Canada; while the porcupine is only to be found in the hottest parts of the Old Continent.