2. The Black or Crested Agouti (Dosyaroeta cristata), is rather impro perly Ladled the Crested Agouti by 31. Geoffrey St. I Blake, since the hairs of its head and neck do not exceed those of the shoulders and back in length. It is considerably smaller than the Common Agouti, being about the size of a rabbit, whilst that species approaches the dimeneions of the harm Its general proportions and form, however, are the mule; but the hairs of the back and sides, instead of being annulated with various-coloured rimmgs as in that species, are nearly uniform black, whilst the long hairs of the croup are perfectly so: the belly and legs are equally covered with short dark hair. There is always reckoned one of our wild medicinal plants, and is often employed, as an ingredient in herb-teas.
not any appearance of crest, and the tail is still shorter than in the Common Agouti. Both this species and the former seem to inhabit the same climates—Surinam Guiana, and Brazil; the Common Agouti, however, appearing to have a rather more extensive range, and to be likewise found in the West India Islands, and even as far south as Paraguay.
3. The Aeouchy, or Olive Agouti (Dasyprocta Amick°, is considerably smaller than either of the foregoing species, and is at once distinguished by the greater length of its tail, which is upwards of two inches in length, not much thicker than a crow's quill, and covered with short scattered hairs like those on the tail of a rat. In-other respects it is of the same form as the Agoutis ; has the same naked round ears, the same large black eyes, and the same olive-green colour mixed with yellow and black. The hairs of the croup are not so long as in the
Agoutis, but are perfectly black ; and all the under-parts of the body, the breast, belly, and interior of the arms and thighs, straw-coloured with a tinge of red. The hair of the legs and feet is short and black, and that of the body much finer in quality than the hair of the Agoutis. It inhabits sonic of the West India Islands, Guiana, and the northern parts of Brazil.
4. White-Toothed Agouti (Dasyprocta croconata, Wagler) is a species founded by Wagler upon a specimen brought by Spix from the river Amazonas it is about the same size as the Common Agouti, but it differs in its incisor teeth being entirely white, in having the tarsi shorter, the nails shorter, and the general hue of its fur much richer.
5. Dasyprocta prymnolopha is a species described by Wagler, which inhabits Guiana.. It is one of the most beautiful of the species, and is rerrillky distinguished by the broad black band which runs along the hinder half of the back, and is continued to the tail.
G. The Sooty Agouti (Dasyprocta fuliginosa, Wagler). This species is the game as the D. nigricans of Natterer and the D. nigra of Dr. J. I:. Gray. It is readily distinguished by its- black colour and large size, It inhabits the northern provinces of Brazil.
7. Azara's Agouti (Dasyprocta Azarw), a species inhabiting Para guay, Bolivia, and the southern parts of Brazil. Mr. Waterhouse says it is identical with Dr. Gray's D. punctata.