UNCINATE PROCESS—URINATORES 1ool 
Mr. Wallace (Proc. Zool. Soc. 1850, p. 206) radiate on all sides, 
reaching beyond the tip of the bill, and forming a perfect dome, 
some 5 inches 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, GyMNOCEPHALUS. 
(After Swainson.) 
glossed with blue in places 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 country 
last named, a second species, C. penduliger, occurs, with a still more 
extraordinary feathered dewlap nearly as long as the whole bird 
(bis, 1859, pl. ui.); and in Veragua and Costa Rica, a third, C. 
glabricollis, 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, pl. xx.), but all have the plumage black and the parasol-like 
crest. The genus belongs to the Cotingidxw (CHATTERER, p. 86), and 
is nearly allied to the genera Pyroderus, Gymnocephalus, Gymnodera 
and Chasmorhynchus (BELL-BIRD, p. 80). (Cf. Sclater, Cat. B. Br. 
Mus. xiv. pp. 397-408). 
UNCINATE PROCESS, a thin bony blade attached, either 
movably or firmly, to the posterior margin of each of the true hips 
(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 
Palamedeide (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). 
URETER, 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 Heliornis, Podiceps | Podicipes| 
and Colymbus. 
