PASSERINE. 293 
neta, a genus which has not as much resemblance to the other Syndacty- 
le as they have to each other, and one which may very properly be made 
to form a particular family. It is the 
Buceros, Lin. 
The Hornbills are large birds of Africa and India, whose enormous 
dentated bill is studded with excrescences, which sometimes equal in size 
the bill itself, and which are always of considerable extent above. This 
renders them very remarkable, and allies them to the Toucans, while, at 
the same time, their carriage and habits approximate them to the Crows, 
and their feet to the Bee-eaters and the King-fishers. The shape of these 
excrescences on the bill varies with age, and in the very young bird they 
are not even visible; the interior is generally cellular. ‘The sternum is 
slightly emarginated behind on both sides. The tongue is small, and 
placed at the bottom of the throat; they live on all sorts of food, eat soft 
fruits, hunt mice, small birds, reptiles, and do not even despise carrion *. 
emarginated bill and the external toe free, such as the Todus regeus, Enl. 289;—para- 
disaus, 1b. 234;—leucocephalus, Pall. Spic. VI, iii, 2;—the two PLatyRuINCI of Des- 
marets, which are the Tod. restratus and nasutus of Shaw, or Tod. platyrhynchos and 
macrorhynchos, Gm. Vieill. gives the first, Gal. 126. 
* HORNBILLS WITH EXCRESCENCES. Buc. rhinoceros, Enl. 934, Vaill. Callaos, 
1 and 2; B. africanus, Vaill., pl. 17, f.2, may be a mere variety from age; niger, 
Vaill. 13, according to Tem. is a badly preserved specimen of the same;—monoceros, 
Sh. Enl. 873; Vaill. 9, 10, 11, 12;—cassidiz, Temm. Col. 210;—malabaricus, Lath. 
VI, ii, or albirostris, Sh.; Vaill. Col. 14;—buccinator, T. Col. 284 ;—gingianus, Sonn. 
Voy. II, pl. exxi; Waill. 15;—bicornis, Vaill. 7, the adult female; cavatus, Id. 4, is the 
male at a middle age. The pl. 3 and 5 are altered specimens of the same.—B. hydro- 
corax, Enl, 282, the young bird; Col. 283, the adult;—violaceus, Id. 19;—abyssinicus, 
Enl. 779, the middle age; Vaill. Afr. 230, 231, the adult; Vieill. Gal. 191;—suleatus, 
T. Col. 69 ;—panayensis, En]. 780, the female, and 781, the old male; Vaill. Col. 16, 
17, and 18; manillensis, En]. 891, should be the young bird;—fasciatus, Vaill. Afr. 
233;—eazaratus, T. Col. 211. 
HoRNBILLS WITHOUT EXCRESCENCES. B. javanicus, Vaill. Cal. 22, the young 
male; Afr. 239, the old male, same as the Cal. de Waidjiou, Labill. Voy., B. undulatus, 
Vaill. Cal. 20 and 21, are females of the same; B. erythrorhynchos, Eni. 260; Vaill. 
Afr. 238, the young one;—hastatus, Cuv.! Enl. 890, Vaill. 256, 237;—coronatus, 
Vaill. Afr. 234, 235;-—bengalensis, Cal. 23. 
N.B. The B. galeatus, of which we only have the head, Enl. 933, and which Vail- 
lant erroneously considers as an aquatic bird, is a true Hornbill, but whose excres- 
cence on the beak is invested with an excessively thick horn, the anterior portion of 
it particularly. j 
See the general article on the Hornbills, by Temminck, in the text of the Planches 
Coloriées. P.S. Itis to General Hardwick that we are at length indebted for a know- 
ledge of the B. galeatus, which proves to be, in fact, a true Hornbill, with a long cu- 
neiform tail; black; white belly; the tail yellowish, with a black band near the end. 
Lin. Tr. XIV, pl. xxviii. 
