762 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



(?) Heteropelma verx-pads Sclater, Cat. Birds Bril. Mus., xiv, 1888, 320, part 



(Calovevora, Panama).— Salvin and Godman, Biol. Centr.-Am., Aves, ii, 



1889, 116, part (Calovevora). 

 Heteropelma verse-pads Salvin and Godman, Biol. Centr.-Am., Aves, ii, 1889, 



116, part (Chitra, Veragua, Panama). 

 Scotothorus furvus Ridgway, Proc. Biol. Soc. Wash., xix, 1906, 118 (Boqucte de 



Chitra, Veragua, Panama; coll. U. S. Nat. Mus.). 



SCOTOTHORUS AMAZONUS STENORHYNCHUS (Sclater and Salvin). 



RUSSET MANAKIN. 



Similar to S. a. amazonus," but with crown less distinctly riifescent 

 and chest much more distinctly fulvescent; similar in coloration of 

 upper parts to -S'. turdinum,'^ but color of under parts slightly paler, 

 with chest more distinctly fulvescent, and size much smaller; other- 

 wise most like S. verse-pacis verx-pacis, but general coloration much 

 browner (without olive tinge above) and under parts of body pale 

 grayish, in conspicuous contrast with cinnamon-brown or wood-brown 

 of chest and tlu-oat. 



Adults {sexes alike). — Above plain light bister brown, the pileum 

 more rufescent (cinnamon-brown or vandyke), the rump and upper 

 tail-coverts slightly paler and more olivaceous; wings and tail warm- 

 sepia brown, the wing-coverts and remiges with outer webs more 

 rufescent (russet-brown or vandyke), especially toward edge; throat 

 and chest plain cinnamon-brown, deep wood-brown, or grayish cin- 

 namon, becoming paler on chin; rest of under parts plain pale olive 

 or light grayish olive, usually more or less tinged with yellowish, 

 paler and more yellowish on abdomen, where usually narrowly and 

 very faintly barred with darker, the thighs more brow^nish; axillars 

 and imder wing-coverts pale yellowish olive, narrowly and indistinctly 

 barred with paler; inner webs of remiges grayish brown, passing into 

 pale buffy brown or pale cinnamon on edges; bill brownish black or 

 dusky horn color, paler on tomia and basal half (more or less) of 

 mandible; legs and feet dusky horn color (in dried skins) becoming 

 paler on upper portion of tarsus. 



Young. — Above plain russet-brown or vandyke, the pileum and 

 hindneck much paler (between cinnamon and russet) ; under parts 

 plain cinnamon-brown, paler on throat and sides of head, paler and 

 more grayish posteriorly, the under tail-coverts mostly grayish white; 

 remiges and rectrices as in adults.^ 



oSee p. 757. 



b Described from no. 71,182, coll. Am. Mus. Nat. Hist., Bonda, Santa Marta, Colom- 

 bia, May 8, 1898; Mrs. H. H. Smith. This specimen (also described by Dr. J. A. 

 Allen in Bull. Am. Mus. N. H., xiii, 1900, 155) is the only example of the first plumage 

 in this genns that I have seen. As stated by Doctor Allen, the plumage of the under 

 parts is "peculiarly soft and wooly," as is that of the pileum and hindneck also (though 

 to a less degree), in this respect recalling to mind the young of the Vireonidie. 



