UNCINA TE PROCESS— URINA TORES 



lOOI 



Mr. Wallace {Vroc. Zool. Soc. 1850, p. 206) radiate on all sides, 

 reaching beyond the tip of the bill, and forming a perfect dome, 

 some 5 inclaes in length by 4 or 4.5 in width. Another curious 

 appendage is a cylindrical fleshy process, an inch and a half long, 

 pendent from the front of the neck, and clothed with imbricated 

 feathers. The bird is about the size of a Crow, and wholly black, 



Cephalopterus. 



GVMNOCEPHALUS. 



(After Swainson.) 



glossed Avith blue in j)laces and especially on the crest and dew- 

 lap. This species inhabits Colombia, Guiana, a great part of 

 Brazil and Eucador; but, in the western districts of the coimtry 

 last named, a second species, C. penduliger, occurs, with a still more 

 extraordinary feathered dewlap nearly as long as the whole bird 

 (Ibis, 1859, pi. iii.) ; and in Veragua and Costa Rica, a third, C. 

 glahricoUis, in which the throat, of a reddish-orange, and dewlap are 

 bare of feathers, except at the tip of the latter (Proc. Zool. Soc. 

 1850, pi. XX.), but all have the plumage black and the jDarasol-like 

 crest. The genus belongs to the Cotingidai (Chatterer, p. 86), and 

 is nearly allied to the genera Fyroderus, Gyimiocephalus, Gymnodcra 

 and Chasmorhynchus (Bell-bird, p. 80). (Cf. Sclater, Cat. B. Br. 

 Mus. xiv. pp. 397-403). 



UNCINA TU PROCESS, a thin bony blade attached, either 

 movably or firmly, to the posterior margin of each of the true RiBS 

 (p. 788) except the last. Originally cartilaginous, these processes sub- 

 sequently ossify each from a special centre, and extend backward to 

 overlap the next succeeding Rib. With the sole exception of the 

 Palamedeidx (Screamer) they are present in all Birds, as well as in 

 some Reptiles, as Hatteria and the Crocodiles. 



UNICORN-BIRD (Bates, Nat. Amaz. i. 277), a name for Pala- 

 medea cornuta (Screamer, p. 819). 



UPiETEB, the duct which conducts the urine from the kidney 

 (p. 480) to the cloaca (p. 90), there being no urinary bladder in 

 Birds (see also figs. pp. 138, 782). 



URINATORES, Vieillot's name in 1816 {Analyse, p. 64) for a 

 group of Birds composed of the genera Helioi'nis, Podiceps [Podidpes^^ 

 and Colymbus. 



