16 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 
bb. Second phalanx of middle toe partly united to outer toe; acrotarsium fused 
(‘booted’). (Pithyex.) 
c. Tail not longer than combined length of tarsus and middle toe with claw. 
d. Orbital region wholly feathered; outstretched feet reaching much beyond 
tip of tail; coloration varied. 
e. Conspicuously crested and bearded; nostrils less widely separated (distance 
between them less than that from either to maxillary tomia); back and 
wings unicolored......-......----------+++-+-- Pithys (extralimital).¢ 
ee. Neither crested nor bearded; nostrils more widely separated (distance 
between them greater than that from either to maxillary tomia); wings 
spotted or barred. 
f. Bill relatively shorter (exposed culmen not more than one-fourth as long 
as wing) and broader (width at frontal antize muh greater than its 
width at same point and equal to at least half the distance from nostril 
to tip of maxilla); back spotted or barred, or with a concealed patch of 
white; tail tipped with white or cinnamon. ..... Hylophylax (p. 126). 
ff. Bill relatively longer (exposed culmen more than one-fourth as long as 
wing) and more compressed (width at frontal antice very little if any 
greater than depth at same point and equal to less than half the dis- 
tance from nostril to tip of maxilla); back neither spotted nor barred, 
nor with concealed white patch; tail unicolored. 
Sclateria (extralimital).d 
dd. Orbital region partly nude; outstretched feet reaching to but little if any 
beyond tip of tail; coloration plain..............-.--- Anoplops (p. 130). 
cc. Tail decidedly longer than combined length of tarsus and middle toe with 
claw. 
d. Tail about two-thirds as long as wing; loral and frontal feathers dense; malar 
region wholly feathered; nostril narrow, longitudinal; culmen less sharply 
or not at all ridged; under parts unicolored. 
e. Pileum crested; upper eyelid not feathered; culmen more contracted, 
slightly ridged; back and wing-coverts unicolored. 
Rhegmatorhina (extralimital).¢ 
@ Manikup Desmarest, Hist. Nat. des Tangaras, 1805, text to pl. 66. Type, Le 
Manikup de Cayenne Daubenton=Pipra albifrons Gmelin.—Pithys Vieillot, Nouv. 
Dict. d’Hist. Nat., xxiv, 1818, 112 (diagnosis but no type); xxvi, 1818, 520.. Type, 
P. leucops Vieillot=Pipra albifrons Gmelin.—Dasyptilops Cabanis and Heine, Mus. 
Hein., ii, 1859, 8. Type, Pipra albifrons Gmelin. (Colombia to Guiana, Peru, and 
central Brazil; two or three species.) ; 
Notwithstanding its unquestioned priority, the name Manikup is so obviously both 
barbarous and cacophonous that it should not be employed as the generic term. 
6 Holocnemis (not of Schilling, 1829) Strickland, Ann. and Mag. Nat. Hist., xiii, 1844, 
415. Type, H. fammulata Strickland—Sitta nevia Gmelin.—Heterocnemis (not of 
Albers, 1852) Sclater, Proc. Zool. Soc. Lond., 1855, 146 (new name for Holocnemis 
Strickland, preoccupied). Type, Sitta nzvia Gmelin.—Sclateria Oberholser, Proc. 
Ac. Nat. Sci. Phila., June 2, 1899, 209 (new name for Heterocnemis Sclater, preoccu- 
pied). The above diagnosis must be taken with reservation as applying to this genus, 
as, unfortunately, no memorandum was made of the species upon which it was based. 
No species of Sclateria is represented in the U. 8. National Museum collection. 
¢ Rhegmatorhina Ridgway, Proc. U. 8. Nat. Mus., x, sig. 33, Aug. 6, 1888, 525, foot- 
note. Type, R. gymnops Ridgway. (Lower Amazon Valley; monotypic.) 
