Family Mamphastidce. 191 



cies, which appear to be all well marked, are added, — a very large 

 increase within a few years to a group so limited. 



P. aracariis well known. The immature plumage of the bird is 

 also represented, and shows a much less development of the bill, 

 and a total want of the deep black which marks the culmen and the 

 whole under mandible of the adult. From this bird Lichtenstein has 

 separated one of the varieties of Latham, &c. under the name of P. 

 regalis, distinguished by a different marking of the bill and a diffe- 

 rent distribution of the colours. P. caslanotis differs also by the 

 colours of the bill, and from P. bitorqnalus by this also, and by the 

 greater proportion of red which occurs on the under parts of the lat- 

 ter ; P. Azaroe is also of allied colours, but such distinctions can 

 scarcely be pointed out except upon the specimen or in an accurate 

 figure. The most remarkable bird in the whole work is that which 

 occurs next, P. itlocomus, Gould. The head and back part of the 

 neck are covered with feathers of a whalebone-like consistence, fiat 

 glossy black, curled at their tips, and resembling in their consistency 

 what we see on the neck of Gallus Soneratii, or one or two species of 

 the Ibis. It has also another peculiarity in the rich vinous tint which 

 covers the mantle or back, not seen in any other species, P. hipo- 

 glaucas is nearly of equal interest ; it is said to be from the most 

 elevated part of the Andes, and is remarkable for its vividly colour- 

 ed bill and the bluish grey tint which entirely covers the lower parts, 

 combined with a yellow rump and crimson lower tail coverts. P. in- 

 scriplusj Strain., and Humbuldtii, Wag/, come in here, singular from 

 the irregular markings on the bill. P. Bail/onii, Wag. (Aracari, 

 Baillon, Vaill. Ft. croceus, Jard. and Selby,) is remarkable for 

 the nearly uniform greenish saffron tint of the whole plumage. 

 The rump is red, but it is an exception to the general colour of the 

 group. P. eulik, Wag. and P. macidi rosins, Lichten. and the Mo- 

 nograph, are allied in form, the males in colour, but easily dis- 

 tinguished by the spotted bill of the latter. P. macidatus (taken 

 from the same marks on the bill) was the original name for this 

 rare bird, but changed by moderns to maculiroslris, perhaps without 

 much necessity. To the first of these birds is also closely allied 

 P. Reinwardtii, Wag. but it is considered distinct. The bill is some- 

 what intermediate between the two last, but an abdominal band of 

 yellow marks their separation. P. Nallerii, Gould, also of the same 

 form, and coming near to maculirostris, is more decidedly marked 

 than the last. P. Langsdorfii allied to Reinwardtii, but differing 

 in the colours of the bill. These five birds, varying in form from the 

 lengthened and more graceful aracari, might, to the minute di- 



