AVES. 461 



longer than body, with feathers narrow, the outer on each side 

 rather small, the two middle very long. Wings short, with third, 

 fourth, and fifth quills subequal, third mostly longest of all. 



Sp. Colius senegalensis Gm., Lanius macrourus L. [Syst. nat. ed. 12, i. p. 134). 

 Briss. Ornith. iii. PL 16, fig. 3, Buff. PI. enl. 282, fig. 2, Gray Gener. 

 PI. XCVI. ; grey-brown, a cobalt-blue spot on the neck; — Colius capensis 

 Gm. (and erythropus ejusd.), Loxia Colius L., Colius leuconotus Lath., 

 Colius erythropygiiis Vieill., Briss. 1. 1. fig. 2, Buff. PI, enl. 282, fig. i. 

 Less. Ornith. PI. 57, fig. 1 ; Guer. Iconogr., Ois. PI. 19, fig. 7, &c. 

 They are all African birds, feeding on fruits (hemes, &c.), they climb on 

 trees and fly little and only to short distances. Compare Rueppell Mus. 

 Senkenb. iii. pp. 39 — 44. 



Ojnsthocomus Hofpmansegg, Illig. Bill thick, short; lower 

 mandible with angle somewhat prominent, ascending to the tip. 

 Nostrils lateral, placed in the middle of bill, covered above by 

 membrane. Tarsi strong, covered on every side by long hexagonal 

 scales. Toes long, with strong claws; hallux not versatile. Tail 

 elongated, rounded. Wings with sixth quill longest. 



Sp. Opisthocomus cristatus, Pliasianus cristatus Gm., Bdff. PL enl. 337, 

 Lath. Synops. 11. PI. lxiv> Guer. Iconogr., Ois. PI. 39, fig. i, Gray 

 Gener. PI. xcviii. ; from the North of South America. Formerly this 

 genus was usually referred to the gallinaceous birds, from which, however, 

 it difiers by the toes completely cloven. Compare on the affinity of this 

 bird Deville in Guerin Magas. de Zool. 1852, pp. 217 — 224, PI. 9. 



Family XXVIII. Bucerotincc. Wing-coverts large. Tarsi 

 covered anteriorly with transverse scutes, reticulate posteriorly. 

 Wings with ten primaries. Tail long, with ten feathers. Bill 

 large, long. Anterior outer toes connected together, separate at 

 the apex only. {Pedes gressorii L.) 



Buceros L. Bill large, hollow, in adults obsoletely serrate or 

 denticulate at the margins and often furnished with a hollow 

 appendage above the culmen. Nostrils placed at the base of bill 

 near the culmen, small. Orbital region (or whole face) and part of 

 the throat destitute of feathers. Wings moderate, with first three 

 quills gradually longer, fourth or fifth longest of all. 



a) Tarsi short, strong. Buceros Gray. {Buceros and TocTcus! Less., 



Rhynchaceros Gloger.) 



Sp. Buceros rhinoceros L., Lesson Ornith. PI. 31, Blumenb. Abb. Naturh. 



Gegeiut. No. 24 ; on the islands Sumatra and Borneo. A local variety of 



Java is Buceros hmalus Temm. PI. col. 546; — Buceros hydrocorax L., Buff., 



