Bill elongated, thick, hollow, deflexed, the margins obtusely crenated, with excrescences of various forms placed on the upper mandible. Nostrils basal, oval. Tongue short, narrow, pointed. Feet gressorial. Generic Types. _B. Rhinoceros_, _bicornis_. Linn. * * * * * SPECIFIC CHARACTER. _B. niger, abdomine, stria utrinque occipitali, apiceque rectricium albis; rostro subcristato, (carinato,) rubro._ Shaw. Black Hornbill, with the abdomen, stripe on each side of the nape, and tip of the tail white. Bill slightly crested, (carinated,) and red. Le Calao Couronne male. _Le Vaill. Ois. d'Af._ _vol._ v. _p._ 117. _pl._ 234. Buceros coronatus, Coronated Hornbill. _Shaw in Gen. Zool._ 8. _p._ 35. * * * * * The bills of these birds present a more uncouth appearance than even those of the Toucans; many species having knobs or excrescences which seem to grow out of the bill itself, and give a strange appearance to the bird. The whole tribe are natives only of the tropical parts of Africa and Asia; feeding on animal substances, either living or dead. Le Vaillant discovered this bird in Caffraria; congregating in flocks of near 500, along with crows and vultures, over the remains of slaughtered elephants. It frequents forests, perching on high, and generally withered trees; it likewise destroys insects. The specimen now before me is about the size of a magpie; the white collar only surrounds the back of the head, and is not well defined; the carinated process on the bill ends _abruptly_, and not _gradually_, as seen in Le Vaillant's figure; the margins are obtusely crenated, the tail even, and the two middle feathers entirely black. * * * * * Pl. 179 [Illustration] MUSCIPETA labrosa, _Red-lipped Flycatcher._ * * * * * GENERIC CHARACTER.--See Pl. 116. * * * * * SPECIFIC CHARACTER. _M. nitide nigra; rictu labroso, rubro; cruribus infra genua plumatis._ Glossy black; gape margined by a red skin; legs feathered beyond the knees. * * * * * This bird, though unattractive in its colours, is nevertheless very remarkable. It may be almost said to have _lips_; for round the gape, at each angle of the mouth, is a narrow loose skin; perfectly naked, and rather projecting. This singularity is increased by its colour in the live bird; which, by a note attached to the specimen, is stated to be of a beautiful red. It seems a species hitherto unknown, and was found near the Great Fish River of Southern Africa.