BIRDS OF NORTH AND MIDDLE AMERICA. 361 



6. Bill slender, its greatest depth less than one-fifth length of culmen, the latter 

 not elevated nor arched basally; feathers of pileum normal, or if narrow, elon- 

 gated and pointed (Jacamaralcyon), not stiff; tail much longer than culmen; 

 feet weak; back, scapulars, and rump not chestnut. 

 c. Rectrices twelve (the outer pair rudimentary or greatly reduced); tail strongly 

 rounded to strongly graduated. 

 d. Tail nearly twice as long as wing, the middle rectrices slender, attenuate 

 terminally; tenth (outermost) primary much less than half as long as 

 ninth; nostril broadly oval, in anterior portion of nasal fossa; under parts 



of body black Urogalba (extralimital).« 



dd. Tail much less than one and a half times as long as wing, the middle rec- 

 trices broader, not attenuate terminally ; tenth (outermost) primary half 

 as long as ninth or longer; nostril narrow, comma-shaped, or crescentic, 

 in lower as well as anterior part of nasal fossa; under parts of body not 

 black. 

 e. Tail much graduated, the fiith (outer developed) pair of rectrices not more 

 than two-thirds as long as middle pair, the latter longest; outer side of 

 tarsus with less than upper half feathered; bill relatively narrower 

 basally; orbital region feathered, except beneath eye; chest metallic 



green, golden, or purplish bronze, like back, etc Galbula (p. 365). 



ee. Tail slightly graduated, the fifth pair of rectrices five-sixths as long as 

 middle pair, the three middle pairs of nearly equal length; outer side of 

 tarsus with more than upper half feathered; bill relatively broader and 

 deeper basally; orbital region wholly naked; chest cinnamon-rufous 

 or rufous- tawny, like rest of under parts of body. 



Psilopornis (extralimital).^ 

 cc. Rectrices ten (the sixth pair wanting); tail slightly rounded or subtruncate. 



d. Toes foiu-; feathers of head normal Brachygalba (p. 369). 



dd. Toes three, the inner hind toe (hallux) wanting; feathers of head (except 

 auricular region) narrow, elongated, and pointed. 



Jacamaralcyon (extralimital).c 

 bb. Bill stout, its gi'eatest depth equal to nearly one-fourth length of exposed cul- 

 men, the latter elevated or arched basally; feathers of pileum narrow, pointed, 

 stiff; tail shorter than culmen; feet stout; back, scapulars, and rump (whole 

 of under parts also) chestnut Galbalcyrhynchus (extralimital).*' 



o Urogalba Bonaparte, Ateneo Italiano, ii, 1854, 129 (Consp. Volucr. Zygod., 1854, 

 13.) (Type, Alcedo paradisea Linnaeus.) — Urocex Cabanis and Heine, Mus. Hein., iv, 

 heft 1, April, 1863, 216. (To replace Urogalba Bonaparte, on grounds of purism.) — 

 Chalcophanes (not of Wagler, 1827) Reichenbach, 1853, 196. 



Amazon Valley and the Guianas. (Two species, or subspecies.) 



b Psilopornis Ridgway, new genus. (Type, Galbula albirostris Latham.) 



c Jacamaralcyon Lesson, Traite d'Orn., 1831, 235. (Type, /. brasiliensis Lesson= 

 Galbula tridactyla Vieillot.) — Cauax Cabanis, in Wiegmann's Archiv fiir Naturg., i, 

 1847, 347. (To replace Jacamaralcyon Lesson, on grounds of purism.) 



Southern Brazil. (Monotypic). 



<i Galbalcyrhynchus Des Mius, Rev. Zool., viii, June, 1845, 207. (Type, G. leucotis Des 

 Mius). — Galbalcyorhynchus (emendation) Gray, Gen. Birds, iii, 1849, App., 5. — Galba- 

 cyrhynchus (emendation) Sclater, Cat. Am. Birds, 1862, 268. — Jacarnaralcyonides Des 

 Murs, Icon. Orn., 1849, 5, pi. 17. (Type, Galbalcyrhynchus leucotis Des Murs).— 

 Alcyonides Reichenbach, Handb. Spec. Orn., i, 1852, 83. (Type, Galbalcyrhynchus 

 Imcotis Des Murs). — Cauecias Cabanis, in Ersch u. Grub. Enc, sect. 1, Iii, 1851, 310. 

 (To replace Galbalcyrhynchus Des Murs, on grounds of purism.) 



Upper Amazon Valley. (Monotypic?) 



