Tucana Cayanensis viridis. _Briss. Ois._ 4. 423. _pl._ 33. _f._ 1. _Id. Orn._ 2. 162. _Pl. Enl._ 727. _mas._ 728. _foem._ * * * * * This is a common bird, known to the older ornithologists; but here introduced, for the purpose of representing the vivid colours which ornament the bill of the live bird: the figures likewise above referred to are so very loosely drawn, that a more correct representation of the species appeared desirable. A remarkable character pervades all the Aracaris, (with the exception of _P. sulcatus_, pl. 44,) the head and throat being black in the male, and chesnut or grey in the female birds; the bills also of the latter are always the smallest; that of the Green Aracari is larger, thicker, and more curved than in any other species; the serratures strong and unequal; the top, and upper half of the superior mandible, pure yellow; the lower half orange; these colours being divided by a slender isolated black line; the under mandible blue, with the base rosy; its general plumage bears a resemblance to several other species. Dr. Latham says the orbits are yellow; this, however, is a mistake, for both the orbits and irides are grass-green; this writer likewise refers to Edwards, pl. 329, for this bird; which plate, in fact, represents a Toucan, and is that bird which I have described and figured under the name of _R. carinatus_, pl. 45. I believe this species is confined to the northern parts of South America. Mr. Charles Edmonston brought home fine specimens from Demerara; they were preserved with so much skill, that the colours of the bill almost retained their primitive brightness; Le Vaillant, I believe, has figured this bird; but I have not, at this time, access to his valuable book. * * * * * Pl. 170 [Illustration] MALURUS Africanus, _African Soft-tail._ * * * * * GENERIC CHARACTER.--See Pl. 170. * * * * * SPECIFIC CHARACTER. _M. supra rufescens, strigis nigris varius; genis mentoque albentibus, striga nigra intermedia; rectricibus attenuatis, nigris, rufo marginatis._ Above rufous brown with black stripes; sides of the head and chin whitish, divided by a black stripe; tail feathers attenuated, black, the margins rufous. Motacilla Africana. _Gmelin_, 1. _p._ 958. Sylvia Africana. _Lath. Ind. Orn._ 2. _p._ 518. _Gen. Zool._ 10. 2. _p._ 615. African Warbler. _Lath. Syn._ 4. _p._ 436. Curruca naevia. _C. B. Spei. Brisson. Ois._ 3. _p._ 390. _tab._ 22. _f._ 2. _Orn._ 1. _p._ 419. Le Fluteur. _Vaill. Ois. d'Afrique._ _Le Vaill. Ois. d'Af._ 3. _pl._ 112. _f._ 2. * * * * *