484 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Guatemala (Santa Maria, near Quezaltenango; Calderas, on VolcSn 

 de Fuego, 7,000-8,000 ft. ; Barranca Honda; Duenas; Ctinen), State 

 of Chiapas, southern Mexico (San Crist6bal). 



Prionites gularis Laprbsnate, Rev. Zool., iii, May, 1840, 130 (Guatemala). 



P[rionites] gularis Bonapaetb, Consp. Av., i, 1850, 165. 



M[o7notus] gularis Gray, Gen. Birds, i, 1847, 68. 



Momotus gularis Strickland, Jardine's Contr. Om., 1849, 33, pi. 17. — Schlbgel, 

 Mus. Pays-Bas, Momoti, 1863, 7 ("Quifx)"). 



[Momotus] gularis Gray, Hand-list, i, 1869, 81, no. 948. 



Hylomanes gularis Sclatbr, Proc. Zool. See. Lond., 1857, 256 (Guatemala).— 

 ScLATER and Saivin, Ibis, 1859, 131 (Guatemala). — ^Boucard, Liste Ois. rficol. 

 Guat., 1878, 26.— Salvin, Cat. Strickland CoU., 1881, 414. 



[Sylomanes] gularis Sclater and Salvin, Nom. Av. Neotr., 1873, 102. 



Aspatha gularis Sharps, Cat. Birds Brit. Mus., xvii, 1892, 331 (Santa Maria near 

 Quezaltenango, Barranca Honda, Duenas, and Volcan de Fuego, Guate- 

 mala).— Salvin and GoDMAN, Biol. Centr.-Am., Aves, ii, 1895, 470 (Cunen, 

 etc., Guatemala). 



[Aspatha] gularis Sharpe, Hand-list, H, 1900, 77. 



Genus HYLOMANES Liehtenstein. 



Hylomanes JjioMTEnsTBiN, Abh. Akad. Wissensch. Berol., 1838 (1839), 449, pi. 4. 

 (Type, H. momotula Lichtenstein.) 



Very small MomotidsB (length about 160 mm.) with tail shorter 

 than wing, the middle rectrices not greatly longer than next pair and 

 always with web continuous; bill slightly shorter than .head, slightly 

 wider than deep at nostril, the culmen not distinctly ridged; and 

 with feathers of throat elongated, but without any tuft of elongated 

 feathers on lower foreneck. 



Bill slightly shorter than head, very slightly decurved terminally, 

 slightly but decidedly wider than deep at nostrils; culmen very 

 faintly decurved to near tip, rounded (not ridged) ; gonys about twice 

 as long as mandibular rami, very broadly rounded, without trace of 

 median line; serrations of tomia minute, obsolete basally and ter- 

 minally. Nostril large, roimdish, in anterior end of nasal fossa. 

 Rictal bristles small, but bristles of malar apex very large and strong; 

 feathers of chin without distinct bristly tips. Head completely 

 feathered; feathers of amicular region elongated, somewhat stiffened, 

 producing a conspicuous tuft, those of the throat elongated but soft; 

 no tuft on lower foreneck." Wing rather short and roimded, the 

 longest primaries exceeding longest secondaries by about one-third 

 the length of tarsus; fifth, sixth, and seventh primaries longest, the 

 eighth next, the ninth slightly shorter than second, the tenth (outer- 

 most) nearly two-thirds as long as ninth. Tail slightly shorter than 

 wing (longer than wing to end of longest secondaries), excessively 

 graduated (the outermost rectrices about two-fifths as long as middle 



" Sylomanes is the only genus in the family which does not possess this conspicuous 

 feature. 



