BIRDS OF NORTH AND MIDDLE AMERICA. 733 



adult males with chest and upper parts metallic bronze, green, or blue, the 



wing-coverts and secondaries always vermiculated; adult females with 



chest and upper parts brown or slate color.) 



d. Tarsus feathered for not more than upper half; tail decidedly longer than 



wing; plumage of young conspicuously spotted, very different from that of 



adults Trogonurus (p. 761). 



dd. Tarsus feathered for at least greater part; tail little if any longer than wing; 



plumage of young similar to that of adults Chrysotrogon (p. 784). 



hh. Auricular feathers slender, filamentous, curving outward terminally; eyelids 

 feathered; sexes alike (or nearly so) in color, the adult females with back, 

 etc., metallic green; anterior toes united for basal phalanx only. 

 c. Rectrices normal in shape; sexes slightly different in coloration, the wing- 

 coverts plain bronzy blackish in male, barred with white in female. 



Temnotrogon (p. 790). 



cc. Rectrices unique in shape, the longer ones deeply concavely incised at tip, 



where the lateral portions are prolonged into falcate points; sexes exactly 



alike in color Priotelus (p. 793). 



Genus PHAROMACHRUS De la Llave. 



Pharoviachrus De la Llave, Registro Trimestre, i, num. 1, Jan., 1832, 48. {Type, 



P. rnocinno De la Llave.) 

 Pharomacnts (emendation) Sclater, Pmc. Zool. Soc. Lond., 1858, 60. 

 Calurus SwAiNSON, Classif. Birds, ii, 1837, 337. (Type, Trogon rcsplendcns 



Goii\d= Pharoviachrus rnocinno De la Llave.) 

 Antisianus Fitzinger, Sitz. k. Akad. Wiss. (Math. -Nat. Cla.sse) [Wien], xxi. 



Heft. 2, July, 1856, 294. (Type, Trogon antisianus D'Orbigny, 1837=7. 



antisicnsis D'Orbigny, 1835.) 

 Cosmurus Reichenbach, Av. Syst. Nat., Aug. 1, 1850, pi. 88. (Tyj^e, Trogon 



antisiensis D'Orbigny.) 

 TanypeplusC' Cabanis and Heine, Mus. Hein., iv, March, 1863, 205. (Type, 



Trogon pavoninus Spix.) 



Large Trogons with smooth (nonserrate) tomia, pileum more or 

 less crested, middle wing-coverts elongated and decumbent, and 

 upper tail-coverts much developed. 



Bill moderate in size (distance from tip to nostril considerably less 

 than from latter to anterior angle of eye), the culmen rather strongly 

 arched, not depressed basally, rounded (not ridged), the tomia smooth 

 (unserrated) but with a distinct subterminal notch on both maxilla 

 and mandible, the tip of the latter forming a distinct ascending point; 

 gonys about half as long as mandi])ular rami, the latter widel}' 

 divergent, the distance across basal portion of interramal space about 

 ecpial to length of rami; nostril narrow, longitudinal, overhung by a 

 broad operculum; rictal bristles minute or obsolete, but chin with 

 conspicuous antrorse, recurved bristles, the post-nasal feathers also 

 with antrorse bristles; feathers of lores appressed, vertical, antrorse 

 anteriorly, sometimes so much developed as to cover nostrils and 

 forming a conspicuous, compressed, frontal duplex crest, which in 



o "Von zai/u£ (lang, gestreckt) und nhiXoc (Oberkleid)." (Cabanis and Heine.) 



