467 
size, and somewhat abnormal in coloration, it appears to agree in 
every essential particular of structure with the typical Heteropelmata; 
the outer toe being united to the middle toe up to the commencement 
of the third phalange, the scales of the tarsi being similar, and the 
bill of the same formation. In colour this species very nearly re- 
sembles the Muscicapa aurifrons of P. Max. (M. luteocephala, Lafr.) 
—a bird referred by Cabanis to Elainea and by Burmeister to Eu- 
scarthmus ; but which, I think, from the structure of the feet ought 
rather to be placed near to, if not in the genus Heteropelma. 
The species of Heteropelma, as far as I am acquainted with them, 
may be arranged as follows :— 
a. Heteropelma, Bp. (ex MS. Schiff). 
Pedibus majoribus, fortioribus ; rostro compresso, elongato, hujus 
apice uncinato. 
Sect. 2. Pileo unicolore. 
1. HETEROPELMA TURDINUM. — Muscicapa turdina, P. Max. 
Beitr. iii. p. 817.—Ptilochloris rufo-olivaceus, Lafr. Rey. Zool. 1838, 
p- 238, et 1847, p. 155. — H. rufo-olivaceum, Cab. et Hein. Mus. 
Hein. ii. p. 100, ex Brasil. Mer. Or. 
2. HETEROPELMA VER#-PACTIS, Scl. et Saly. P.Z.S. 1860, p- 300, 
ex Guatemala. 
3. HeTEROPELMA AMAZONUM, Scl., ex fl. Amazonum sup. 
4, HETEROPELMA VIRESCENS (Lafr.).—Muse. virescens, P. Max. 
Beitr. iii. p. 802. — Péilochloris virescens, Lafr. Rev. Zool. 1838, 
p- 238.—H. unicolor, Bp. Cab. et Hein. Mus. Hein. ii. p. 100.— 
Pipra unicolor, Langsd. MS. — Pipra inornata, Mus. Vindob., ex 
Brasil. Mer. Or. 
Sect. b. Pzleo subcristato, aureo. 
5. HETEROPELMA FLAVICAPILLUM, Sclater, ex Brasil. Mer. Or. 
f. Neopelma, nob. 
Pedibus debilibus, rostro breviore, latiore, apice non uncinato. 
6. HETEROPELMA AURIFRONS.—Musc. aurifrons, P. Max. Beitr. 
ili. p. 829.—M. luteocephala, Lafr. Mag. de Zool. 1833, pl. 13.— 
Elainea aurifrons, Cab. in Schomb. Reise, iii. p. 701.—Zuscarthmus 
aurifrons, Burm. Thiere Bras. ii. p. 489, ex Brasil. et Guiana. 
